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Shaw GM, Yang W, Weber KA, Olshan AF, Desrosiers TA. A search for factors associated with reduced carbohydrate intake and NTD risk in two population-based studies. Birth Defects Res 2024; 116:e2328. [PMID: 38450884 DOI: 10.1002/bdr2.2328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Two population-based case-control studies have reported an increased risk of neural tube defect (NTD)-affected pregnancies among women with low carbohydrate diet in the periconceptional period. Given that only two studies have investigated this association, it is unclear to what degree the findings could be impacted by residual confounding. Here, we further interrogated both studies that observed this association with the objective to identify factors from a much larger number of factors that might explain the association. METHODS By employing a machine learning algorithm (random forest), we investigated a baseline set of over 200 variables. These analyses produced the top 10 variables in each data set for cases and controls that predicted periconceptional low carbohydrate intake. RESULTS Examining those prediction variables with logistic regression modeling, we did not observe any particular variable that substantially contributed to the NTD-low carbohydrate association in either data set. CONCLUSIONS If there are underlying factors that explain the association, our findings suggest that none of the 200+ variables we examined were sufficiently correlated with what that true explanatory exposure may be. Alternatively, our findings may suggest that there are other unidentified factor(s) at play, or the association observed in two independent data sets is directly related to low carbohydrate intake.
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Affiliation(s)
- Gary M Shaw
- Stanford University School of Medicine, Department of Pediatrics, Division of Neonatology, Stanford University School of Medicine, Stanford, California, USA
| | - Wei Yang
- Stanford University School of Medicine, Department of Pediatrics, Division of Neonatology, Stanford University School of Medicine, Stanford, California, USA
| | - Kari A Weber
- Department of Epidemiology, Fay. W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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2
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Evenson KR, Mowla S, Olshan AF, Shaw GM, Ailes EC, Reefhuis J, Joshi N, Desrosiers TA. Maternal physical activity, sitting, and risk of non-cardiac birth defects. Pediatr Res 2024; 95:334-341. [PMID: 37543708 PMCID: PMC10875984 DOI: 10.1038/s41390-023-02768-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND The relationship between maternal physical activity (PA)/sitting and birth defects is largely unexplored. We examined whether pre-pregnancy PA/sitting were associated with having a pregnancy affected by a birth defect. METHODS We used data from two United States population-based case-control studies: 2008-2011 deliveries from the National Birth Defects Prevention Study (NBDPS; 9 states) and 2014-2018 deliveries from the Birth Defects Study To Evaluate Pregnancy exposureS (BD-STEPS; 7 states). Cases with one of 12 non-cardiac birth defects (n = 3798) were identified through population-based registries. Controls (n = 2682) were live-born infants without major birth defects randomly sampled using vital/hospital records. Mothers self-reported pre-pregnancy PA/sitting. Unconditional logistic regression models estimated associations between PA/sitting categories and the 12 birth defects. RESULTS Mothers engaging in pre-pregnancy PA was associated with a reduced odds of five (spina bifida, cleft palate, anorectal atresia, hypospadias, transverse limb deficiency) and a higher odds of two (anencephaly, gastroschisis) birth defects. Mothers spending less time sitting in pre-pregnancy was associated with a reduced odds of two (anorectal atresia, hypospadias) and a higher odds of one (cleft lip with or without cleft palate) birth defect. CONCLUSIONS Reasonable next steps include replication of these findings, improved exposure assessment, and elucidation of biologic mechanisms. IMPACT Using data from two population-based case-control studies, we found that mothers engaging in different types of physical activity in the 3 months before pregnancy had an infant with a reduced odds of five and a higher odds of two birth defects. Mothers spending less time sitting in the 3 months before pregnancy had an infant with a reduced odds of two and a higher odds of one birth defect. Clarification and confirmation from additional studies are needed using more precise exposure measures, distinguishing occupational from leisure-time physical activity, and elucidation of mechanisms supporting these associations.
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Affiliation(s)
- Kelly R Evenson
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina - Chapel Hill, Chapel Hill, NC, USA.
| | - Sanjida Mowla
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina - Chapel Hill, Chapel Hill, NC, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina - Chapel Hill, Chapel Hill, NC, USA
| | - Gary M Shaw
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Elizabeth C Ailes
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jennita Reefhuis
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Neha Joshi
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina - Chapel Hill, Chapel Hill, NC, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina - Chapel Hill, Chapel Hill, NC, USA
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3
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Wong EC, Lupo PJ, Desrosiers TA, Nichols HB, Smith SM, Poole C, Canfield M, Shumate C, Chambers TM, Schraw JM, Nembhard WN, Yazdy MM, Nestoridi E, Janitz AE, Olshan AF. Associations between birth defects with neural crest cell origins and pediatric embryonal tumors. Cancer 2023; 129:3595-3602. [PMID: 37432072 PMCID: PMC10615683 DOI: 10.1002/cncr.34952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 07/12/2023]
Abstract
BACKGROUND There are few assessments evaluating associations between birth defects with neural crest cell developmental origins (BDNCOs) and embryonal tumors, which are characterized by undifferentiated cells having a molecular profile similar to neural crest cells. The effect of BDNCOs on embryonal tumors was estimated to explore potential shared etiologic pathways and genetic origins. METHODS With the use of a multistate, registry-linkage cohort study, BDNCO-embryonal tumor associations were evaluated by generating hazard ratios (HRs) and 95% confidence intervals (CIs) with Cox regression models. BDNCOs consisted of ear, face, and neck defects, Hirschsprung disease, and a selection of congenital heart defects. Embryonal tumors included neuroblastoma, nephroblastoma, and hepatoblastoma. Potential HR modification (HRM) was investigated by infant sex, maternal race/ethnicity, maternal age, and maternal education. RESULTS The risk of embryonal tumors among those with BDNCOs was 0.09% (co-occurring n = 105) compared to 0.03% (95% CI, 0.03%-0.04%) among those without a birth defect. Children with BDNCOs were 4.2 times (95% CI, 3.5-5.1 times) as likely to be diagnosed with an embryonal tumor compared to children born without a birth defect. BDNCOs were strongly associated with hepatoblastoma (HR, 16.1; 95% CI, 11.3-22.9), and the HRs for neuroblastoma (3.1; 95% CI, 2.3-4.2) and nephroblastoma (2.9; 95% CI, 1.9-4.4) were elevated. There was no notable HRM by the aforementioned factors. CONCLUSIONS Children with BDNCOs are more likely to develop embryonal tumors compared to children without a birth defect. Disruptions of shared developmental pathways may contribute to both phenotypes, which could inform future genomic assessments and cancer surveillance strategies of these conditions.
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Affiliation(s)
- Eugene C Wong
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Philip J Lupo
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Hazel B Nichols
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Susan M Smith
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Charles Poole
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Mark Canfield
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas, USA
| | - Charles Shumate
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas, USA
| | - Tiffany M Chambers
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Jeremy M Schraw
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Wendy N Nembhard
- Department of Epidemiology, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences and Arkansas Center for Birth Defects Research and Prevention, Little Rock, Arkansas, USA
| | - Mahsa M Yazdy
- Massachusetts Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, Massachusetts, USA
| | - Eirini Nestoridi
- Massachusetts Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, Massachusetts, USA
| | - Amanda E Janitz
- Department of Biostatistics and Epidemiology, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Krajewski AK, Patel A, Gray CL, Messer LC, Keeler CY, Langlois PH, Reefhuis J, Gilboa SM, Werler MM, Shaw GM, Carmichael SL, Nembhard WN, Insaf TZ, Feldkamp ML, Conway KM, Lobdell DT, Desrosiers TA. Is gastroschisis associated with county-level socio-environmental quality during pregnancy? Birth Defects Res 2023; 115:1758-1769. [PMID: 37772934 PMCID: PMC10878499 DOI: 10.1002/bdr2.2250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/31/2023] [Indexed: 09/30/2023]
Abstract
BACKGROUND Gastroschisis prevalence more than doubled between 1995 and 2012. While there are individual-level risk factors (e.g., young maternal age, low body mass index), the impact of environmental exposures is not well understood. METHODS We used the U.S. Environmental Protection Agency's Environmental Quality Index (EQI) as a county-level estimate of cumulative environmental exposures for five domains (air, water, land, sociodemographic, and built) and overall from 2006 to 2010. Adjusted odds ratios (aOR) and 95% confidence interval (CI) were estimated from logistic regression models between EQI tertiles (better environmental quality (reference); mid; poorer) and gastroschisis in the National Birth Defects Prevention Study from births delivered between 2006 and 2011. Our analysis included 594 cases with gastroschisis and 4105 infants without a birth defect (controls). RESULTS Overall EQI was modestly associated with gastroschisis (aOR [95% CI]: 1.29 [0.98, 1.71]) for maternal residence in counties with poorer environmental quality, compared to the reference (better environmental quality). Within domain-specific indices, only the sociodemographic domain (aOR: 1.51 [0.99, 2.29]) was modestly associated with gastroschisis, when comparing poorer to better environmental quality. CONCLUSIONS Future work could elucidate pathway(s) by which components of the sociodemographic domain or possibly related psychosocial factors like chronic stress potentially contribute to risk of gastroschisis.
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Affiliation(s)
- Alison K. Krajewski
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, Center for Public Health & Environmental Assessment, Research Triangle Park, North Carolina, USA
| | - Achal Patel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | | | - Corinna Y. Keeler
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Peter H. Langlois
- Department of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas School of Public Health—Austin Regional Campus, Austin, Texas, USA
| | - Jennita Reefhuis
- Centers for Disease Control and Prevention, National Center on Birth Defects and Developmental Disabilities, Division of Birth Defects and Infant Disorders, Atlanta, Georgia, USA
| | - Suzanne M. Gilboa
- Centers for Disease Control and Prevention, National Center on Birth Defects and Developmental Disabilities, Division of Birth Defects and Infant Disorders, Atlanta, Georgia, USA
| | - Martha M. Werler
- Department of Epidemiology, Boston University, School of Public Health, Boston, Massachusetts, USA
| | - Gary M. Shaw
- Stanford University, School of Medicine, Stanford, California, USA
| | | | - Wendy N. Nembhard
- Department of Epidemiology, University of Arkansas for Medical Sciences, Fay W. Boozman College of Public Health, Little Rock, Arkansas, USA
| | - Tabassum Z. Insaf
- New York State Department of Health, Center for Environmental Health, Bureau of Environmental and Occupational Epidemiology, Albany, New York, USA
- Department of Epidemiology and Biostatistics, University at Albany, Albany, New York, USA
| | - Marcia L. Feldkamp
- Department of Pediatrics, Division of Medical Genetics, University of Utah, Salt Lake City, Utah, USA
| | - Kristin M. Conway
- Department of Epidemiology, The University of Iowa, College of Public Health, Iowa City, Iowa, USA
| | - Danelle T. Lobdell
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, Center for Public Health & Environmental Assessment, Research Triangle Park, North Carolina, USA
| | - Tania A. Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Schraw JM, Sok P, Desrosiers TA, Janitz AE, Langlois PH, Canfield MA, Frazier AL, Plon SE, Lupo PJ, Poynter JN. Associations between birth defects and childhood and adolescent germ cell tumors according to sex, histologic subtype, and site. Cancer 2023; 129:3300-3308. [PMID: 37366624 DOI: 10.1002/cncr.34906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/01/2023] [Accepted: 05/08/2023] [Indexed: 06/28/2023]
Abstract
BACKGROUND Studies have reported increased rates of birth defects among children with germ cell tumors (GCTs). However, few studies have evaluated associations by sex, type of defect, or tumor characteristics. METHODS Birth defect-GCT associations were evaluated among pediatric patients (N = 552) with GCTs enrolled in the Germ Cell Tumor Epidemiology Study and population-based controls (N = 6380) without cancer from the Genetic Overlap Between Anomalies and Cancer in Kids Study. The odds ratio (OR) and 95% confidence interval (CI) of GCTs according to birth defects status were estimated by using unconditional logistic regression. All defects were considered collectively and by genetic and chromosomal syndromes and nonsyndromic defects. Stratification was by sex, tumor histology (yolk sac tumor, teratoma, germinoma, and mixed/other), and location (gonadal, extragonadal, and intracranial). RESULTS Birth defects and syndromic defects were more common among GCT cases than controls (6.9% vs. 4.0% and 2.7% vs. 0.2%, respectively; both p < .001). In multivariable models, GCT risk was increased among children with birth defects (OR, 1.7; 95% CI, 1.3-2.4) and syndromic defects (OR, 10.4; 95% CI, 4.9-22.1). When stratified by tumor characteristics, birth defects were associated with yolk sac tumors (OR, 2.7; 95% CI, 1.3-5.0) and mixed/other histologies (OR, 2.1; 95% CI, 1.2-3.5) and both gonadal tumors (OR, 1.7; 95% CI, 1.0-2.7) and extragonadal tumors (OR, 3.8; 95% CI, 2.1-6.5). Nonsyndromic defects specifically were not associated with GCTs. In sex-stratified analyses, associations were observed among males but not females. CONCLUSIONS These data suggest that males with syndromic birth defects are at an increased risk of pediatric GCTs, whereas males with nonsyndromic defects and females are not at an increased risk. PLAIN LANGUAGE SUMMARY We investigated whether birth defects (such as congenital heart disease or Down syndrome) are linked to childhood germ cell tumors (GCTs), cancers that mainly develop in the ovaries or testes. We studied different types of birth defects (defects that were caused by chromosome changes such as Down syndrome or Klinefelter syndrome and defects that were not) and different types of GCTs. Only chromosome changes such as Down syndrome or Klinefelter syndrome were linked to GCTs. Our study suggests that most children with birth defects are not at an increased risk of GCTs because most birth defects are not caused by chromosome changes.
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Affiliation(s)
- Jeremy M Schraw
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Pagna Sok
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Amanda E Janitz
- Department of Biostatistics and Epidemiology, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Peter H Langlois
- Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Austin, Texas, USA
| | - Mark A Canfield
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas, USA
| | - A Lindsay Frazier
- Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Sharon E Plon
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Philip J Lupo
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Jenny N Poynter
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
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6
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Van Buren KW, Rocheleau CM, Chen IC, Desrosiers TA, Sanderson WT, Politis MD, Ailes EC. Maternal occupational exposure to selected organic and chlorinated solvents and delivery of small-for-gestational age or preterm infants. Am J Ind Med 2023; 66:842-853. [PMID: 37463847 PMCID: PMC10527887 DOI: 10.1002/ajim.23516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/15/2023] [Accepted: 07/06/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND Potential reproductive effects of organic solvent exposure during pregnancy remain unclear. We investigated the association between maternal occupational exposure during pregnancy to six chlorinated solvents, three aromatic solvents, and Stoddard solvent, and delivery of preterm infants or those born small-for-gestational age (SGA). METHODS In this case-control study of SGA and preterm birth (PTB) nested within the National Birth Defects Prevention Study (NBDPS) from 1997 to 2011, we analyzed data from 7504 singleton live births without major birth defects and their mothers. Self-reported information on jobs held in the periconceptional period was assessed for solvent exposure. Unconditional logistic regression was used to estimate the association between maternal occupational exposure (any, none) during early pregnancy to organic solvents and PTB and SGA. Linear regression was used to examine changes in mean birthweight potentially associated with maternal occupational solvent exposure. RESULTS Maternal occupational exposure to any organic solvents overall was not associated with an increased odds of PTB (adjusted odds ratio [aOR] = 0.94; 95% confidence interval [CI] 0.67-1.33) or SGA (aOR = 0.93; 95% CI 0.65-1.34). Point estimates increased modestly for higher estimated exposure versus lower, but confidence intervals were wide and not statistically significant. Maternal exposure to solvents was not associated with a statistically significant change in term birthweight among infants. CONCLUSIONS Occupational exposure to organic solvents at the frequency and intensity levels found in a population-based sample of pregnant workers was not associated with PTB or SGA; however, we cannot rule out any effects among pregnant workers with uncommonly high exposure to organic solvents.
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Affiliation(s)
- Kristen W. Van Buren
- Division of Field Studies and Engineering, National Institute for Occupational Safety and Health, Cincinnati, OH, USA
- Department of Epidemiology and Environmental Health, College of Public Health, University of Kentucky, Lexington, KY, USA
| | - Carissa M. Rocheleau
- Division of Field Studies and Engineering, National Institute for Occupational Safety and Health, Cincinnati, OH, USA
| | - I-Chen Chen
- Division of Field Studies and Engineering, National Institute for Occupational Safety and Health, Cincinnati, OH, USA
| | - Tania A. Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Wayne T. Sanderson
- Department of Biosystems and Agricultural Engineering Department, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, USA
| | - Maria D. Politis
- Arkansas Center for Birth Defects Research and Prevention, University of Arkansas for Medical Sciences, Little Rock, AR
| | - Elizabeth C. Ailes
- Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Developmental Disabilities, Atlanta, GA, USA
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Neo DT, Martin CL, Carmichael SL, Gucsavas-Calikoglu M, Conway KM, Evans SP, Feldkamp ML, Gilboa SM, Insaf TZ, Musfee FI, Shaw GM, Shumate C, Werler MM, Olshan AF, Desrosiers TA. Are individual-level risk factors for gastroschisis modified by neighborhood-level socioeconomic factors? Birth Defects Res 2023; 115:1438-1449. [PMID: 37439400 PMCID: PMC10527855 DOI: 10.1002/bdr2.2224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/18/2023] [Accepted: 07/04/2023] [Indexed: 07/14/2023]
Abstract
BACKGROUND Two strong risk factors for gastroschisis are young maternal age (<20 years) and low/normal pre-pregnancy body mass index (BMI), yet the reasons remain unknown. We explored whether neighborhood-level socioeconomic position (nSEP) during pregnancy modified these associations. METHODS We analyzed data from 1269 gastroschisis cases and 10,217 controls in the National Birth Defects Prevention Study (1997-2011). To characterize nSEP, we applied the neighborhood deprivation index and used generalized estimating equations to calculate odds ratios and relative excess risk due to interaction. RESULTS Elevated odds of gastroschisis were consistently associated with young maternal age and low/normal BMI, regardless of nSEP. High-deprivation neighborhoods modified the association with young maternal age. Infants of young mothers in high-deprivation areas had lower odds of gastroschisis (adjusted odds ratio [aOR]: 3.1, 95% confidence interval [CI]: 2.6, 3.8) than young mothers in low-deprivation areas (aOR: 6.6; 95% CI: 4.6, 9.4). Mothers of low/normal BMI had approximately twice the odds of having an infant with gastroschisis compared to mothers with overweight/obese BMI, regardless of nSEP (aOR range: 1.5-2.3). CONCLUSION Our findings suggest nSEP modified the association between gastroschisis and maternal age, but not BMI. Further research could clarify whether the modification is due to unidentified biologic and/or non-biologic factors.
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Affiliation(s)
- Dayna T. Neo
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Chantel L. Martin
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Suzan L. Carmichael
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California, USA
| | - Muge Gucsavas-Calikoglu
- Department of Pediatrics, Division of Genetics and Metabolism, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Kristin M. Conway
- Department of Epidemiology, College of Public Health, The University of Iowa, Iowa City, Iowa, USA
| | - Shannon Pruitt Evans
- Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Eagle Global Scientific LLC, San Antonio, Texas, USA
| | - Marcia L. Feldkamp
- Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Suzanne M. Gilboa
- Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Tabassum Z. Insaf
- Bureau of Environmental and Occupational Epidemiology, Center for Environmental Health, New York State Department of Health, Albany, New York, USA
- Department of Epidemiology and Biostatistics, School of Public Health, University at Albany, Rensselaer, New York, USA
| | - Fadi I. Musfee
- Department of Epidemiology, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little, Arkansas, USA
| | - Gary M. Shaw
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
| | - Charles Shumate
- Texas Department of State Health Services, Birth Defects Epidemiology and Surveillance Branch, Austin, Texas, USA
| | - Martha M. Werler
- Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Andrew F. Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Tania A. Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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8
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Petersen JM, Smith-Webb RS, Shaw GM, Carmichael SL, Desrosiers TA, Nestoridi E, Darling AM, Parker SE, Politis MD, Yazdy MM, Werler MM. Periconceptional intakes of methyl donors and other micronutrients involved in one-carbon metabolism may further reduce the risk of neural tube defects in offspring: a United States population-based case-control study of women meeting the folic acid recommendations. Am J Clin Nutr 2023; 118:720-728. [PMID: 37661108 PMCID: PMC10624769 DOI: 10.1016/j.ajcnut.2023.05.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 09/05/2023] Open
Abstract
BACKGROUND Neural tube defects (NTDs) still occur among some women who consume 400 μg of folic acid for prevention. It has been hypothesized that intakes of methyl donors and other micronutrients involved in one-carbon metabolism may further protect against NTDs. OBJECTIVES To investigate whether intakes of vitamin B6, vitamin B12, choline, betaine, methionine, thiamine, riboflavin, and zinc, individually or in combination, were associated with NTD risk reduction in offspring of women meeting the folic acid recommendations. METHODS Data were from the National Birth Defects Prevention Study (United States population-based, case-control). We restricted deliveries between 1999 and 2011 with daily periconceptional folic acid supplementation or estimated dietary folate equivalents ≥400 μg. NTD cases were live births, stillbirths, or terminations affected by spina bifida, anencephaly, or encephalocele (n = 1227). Controls were live births without a major birth defect (n = 7095). We categorized intake of each micronutrient as higher or lower based on a combination of diet (estimated from a food frequency questionnaire) and periconceptional vitamin supplementation. We estimated NTD associations for higher compared with lower intake of each micronutrient, individually and in combination, expressed as odds ratios (ORs) and 95% confidence intervals (CIs), adjusted for age, race/ethnicity, education, and study center. RESULTS NTD associations with each micronutrient were weak to modest. Greater NTD reductions were observed with concurrent higher-amount intakes of multiple micronutrients. For instance, NTD odds were ∼50% lower among participants with ≥4 micronutrients with higher-amount intakes than among participants with ≤1 micronutrient with higher-amount intake (adjusted OR: 0.53; 95% CI: 0.33, 0.86). The strongest reduction occurred with concurrent higher-amount intakes of vitamin B6, vitamin B12, choline, betaine, and methionine (adjusted OR: 0.26; 95% CI: 0.09, 0.77) compared with ≤1 micronutrient with higher-amount intake. CONCLUSIONS Our findings support that NTD prevention, in the context of folic acid fortification, could be augmented with intakes of methyl donors and other micronutrients involved in folate metabolism.
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Affiliation(s)
- Julie M Petersen
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States; Massachusetts Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, MA, United States.
| | - Rashida S Smith-Webb
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States
| | - Gary M Shaw
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States
| | - Suzan L Carmichael
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States; Center for Population Health Sciences, Stanford University School of Medicine, Stanford, CA, United States
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Eirini Nestoridi
- Massachusetts Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, MA, United States
| | - Anne Marie Darling
- Massachusetts Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, MA, United States
| | - Samantha E Parker
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States
| | - Maria D Politis
- Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Mahsa M Yazdy
- Massachusetts Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, MA, United States
| | - Martha M Werler
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States
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9
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Neo DT, Desrosiers TA, Martin CL, Carmichael SL, Gucsavas-Calikoglu M, Conway KM, Evans SP, Feldkamp ML, Gilboa SM, Insaf TZ, Musfee FI, Shaw GM, Shumate CJ, Werler MM, Olshan AF. Neighborhood-level Socioeconomic Position During Early Pregnancy and Risk of Gastroschisis. Epidemiology 2023; 34:576-588. [PMID: 36976718 PMCID: PMC10291502 DOI: 10.1097/ede.0000000000001621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
BACKGROUND Neighborhood-level socioeconomic position has been shown to influence birth outcomes, including selected birth defects. This study examines the un derstudied association between neighborhood-level socioeconomic position during early pregnancy and the risk of gastroschisis, an abdominal birth defect of increasing prevalence. METHODS We conducted a case-control study of 1,269 gastroschisis cases and 10,217 controls using data from the National Birth Defects Prevention Study (1997-2011). To characterize neighborhood-level socioeconomic position, we conducted a principal component analysis to construct two indices-Neighborhood Deprivation Index (NDI) and Neighborhood Socioeconomic Position Index (nSEPI). We created neighborhood-level indices using census socioeconomic indicators corresponding to census tracts associated with addresses where mothers lived the longest during the periconceptional period. We used generalized estimating equations to estimate odds ratios (ORs) and 95% confidence intervals (CIs), with multiple imputations for missing data and adjustment for maternal race-ethnicity, household income, education, birth year, and duration of residence. RESULTS Mothers residing in moderate (NDI Tertile 2 aOR = 1.23; 95% CI = 1.03, 1.48 and nSEPI Tertile 2 aOR = 1.24; 95% CI = 1.04, 1.49) or low socioeconomic neighborhoods (NDI Tertile 3 aOR = 1.28; 95% CI = 1.05, 1.55 and nSEPI Tertile 3 aOR = 1.32, 95% CI = 1.09, 1.61) were more likely to deliver an infant with gastroschisis compared with mothers residing in high socioeconomic neighborhoods. CONCLUSIONS Our findings suggest that lower neighborhood-level socioeconomic position during early pregnancy is associated with elevated odds of gastroschisis. Additional epidemiologic studies may aid in confirming this finding and evaluating potential mechanisms linking neighborhood-level socioeconomic factors and gastroschisis.
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Affiliation(s)
- Dayna T. Neo
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Tania A. Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Chantel L. Martin
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Suzan L. Carmichael
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA
| | - Muge Gucsavas-Calikoglu
- Department of Pediatrics, Division of Genetics and Metabolism, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Kristin M. Conway
- Department of Epidemiology, College of Public Health, The University of Iowa, Iowa City, IA
| | - Shannon Pruitt Evans
- Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA
- Eagle Global Scientific LLC, San Antonio, TX, USA
| | - Marcia L. Feldkamp
- Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT
| | - Suzanne M. Gilboa
- Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA
| | - Tabassum Z. Insaf
- Bureau of Environmental and Occupational Epidemiology, Center for Environmental Health, New York State Department of Health, Albany, NY
- Department of Epidemiology and Biostatistics, School of Public Health, University at Albany, Rensselaer, NY
| | - Fadi I. Musfee
- Department of Epidemiology, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR
- Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Helath, University of Arkansas for Medical Sciences, Little Risk, AR
| | - Gary M. Shaw
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA
| | - Charles J. Shumate
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX
| | - Martha M. Werler
- Department of Epidemiology, Boston University School of Public Health, Boston, MA
| | - Andrew F. Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
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Carmichael SL, Yang W, Ma C, Desrosiers TA, Weber K, Collins RT, Nestoridi E, Shaw GM. Oxidative balance scores and neural crest cell-related congenital anomalies. Birth Defects Res 2023. [PMID: 37309307 DOI: 10.1002/bdr2.2211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/04/2023] [Accepted: 05/25/2023] [Indexed: 06/14/2023]
Abstract
Oxidative stress and redox imbalance adversely affect embryonic development. We developed two oxidative balance scores (OBS) that include dietary and nondietary exposures. We hypothesized that higher scores (i.e., lower oxidative stress) would be associated with lower risk of neural tube defects, orofacial clefts, conotruncal heart defects, and limb deficiencies. We used data from the National Birth Defects Prevention Study to create a dietary OBS based on intake of 13 nutrients and an overall OBS that included the 13 nutrients and eight additional nondietary factors related to oxidative balance (e.g., smoking). We used logistic regression to examine odds ratios associated with having low or high scores (i.e., <10th or >90th percentiles). Continuous models indicated reduced odds associated with high versus low scores (i.e., comparing odds at the 90th versus 10th percentile values of the distribution) on the overall OBS for cleft lip with or without cleft palate [adjusted odds ratio (aOR) 0.72, 95% confidence interval (CI) 0.63-0.82], longitudinal limb deficiency (aOR 0.73, CI 0.54-0.99), and transverse limb deficiency (aOR 0.74, CI 0.58-0.95); increased odds for anencephaly (aOR 1.40, CI 1.07-1.84); and primarily nonsignificant associations with conotruncal heart defects. Results for the dietary OBS were similar. This study provides some evidence that oxidative stress contributes to congenital anomalies related to neural crest cell development.
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Affiliation(s)
- Suzan L Carmichael
- Division of Neonatology and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
- Division of Maternal-Fetal Medicine and Obstetrics, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California, USA
| | - Wei Yang
- Division of Neonatology and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
| | - Chen Ma
- Division of Neonatology and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Kari Weber
- Department of Epidemiology and Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - R T Collins
- Division of Cardiology, Department of Pediatrics, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Eirini Nestoridi
- Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, Massachusetts, USA
| | - Gary M Shaw
- Division of Neonatology and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
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11
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Keeler C, Luben TJ, Forestieri N, Olshan AF, Desrosiers TA. Is residential proximity to polluted sites during pregnancy associated with preterm birth or low birth weight? Results from an integrated exposure database in North Carolina (2003-2015). J Expo Sci Environ Epidemiol 2023; 33:229-236. [PMID: 36100666 PMCID: PMC10008762 DOI: 10.1038/s41370-022-00475-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Preterm birth (PTB) and term low birth weight (LBW) have been associated with pollution and other environmental exposures, but the relationship between these adverse outcomes and specific characteristics of polluted sites is not well studied. OBJECTIVES We conducted a retrospective cohort study to examine relationships between residential proximity to polluted sites in North Carolina (NC) and PTB and LBW. We further stratified exposure to polluted sites by route of contaminant emissions and specific contaminants released at each site. METHODS We created an integrated exposure geodatabase of polluted sites in NC from 2002 to 2015 including all landfills, Superfund sites, and industrial sites. Using birth certificates, we assembled a cohort of 1,494,651 singleton births in NC from 2003 to 2015. We geocoded the gestational parent residential address on the birth certificate, and defined exposure to polluted sites as residence within one mile of a site. We used log-binomial regression models to estimate adjusted risk ratios (aRR) and 95% confidence intervals (CI). Binomial models were used to estimate adjusted risk differences (aRD) per 10,000 births and 95% CIs for associations between exposure to polluted sites and PTB or LBW. RESULTS We observed weak associations between residential proximity to polluted sites and PTB [aRR(95% CI): 1.07(1.06,1.09); aRD(95% CI): 61(48,74)] and LBW [aRR(95% CI): 1.09(1.06,1.12); aRD(95% CI): 24(17,31)]. Secondary analyses showed increased risk of both PTB and LBW among births exposed to sites characterized by water emissions, air emissions, and land impoundment. In analyses of specific contaminants, increased risk of PTB was associated with proximity to sites containing arsenic, benzene, cadmium, lead, mercury, and polycyclic aromatic hydrocarbons. LBW was associated with exposure to arsenic, benzene, cadmium, lead, and mercury. SIGNIFICANCE This study provides evidence for potential reproductive health effects of polluted sites, and underscores the importance of accounting for heterogeneity between polluted sites when considering these exposures. IMPACT STATEMENT We documented an overall increased risk of both PTB and LBW in births with gestational exposure to polluted sites using a harmonized geodatabase of three site types, and further examined exposures stratified by site characteristics (route of emission, specific contaminants present). We observed increased risk of both PTB and LBW among births exposed to sites with water emissions or air emissions, across site types. Increased risk of PTB was associated with gestational proximity to sites containing arsenic, benzene, cadmium, lead, mercury, and polycyclic aromatic hydrocarbons; increased risk of LBW was associated with exposure to arsenic, benzene, cadmium, lead, and mercury.
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Affiliation(s)
- Corinna Keeler
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Thomas J Luben
- Center for Public Health and Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Durham, NC, USA
| | - Nina Forestieri
- Birth Defects Monitoring Program, State Center for Health Statistics, Division of Public Health, North Carolina Department of Health and Human Services, Raleigh, NC, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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12
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Weber KA, Yang W, Carmichael SL, Collins RT, Luben TJ, Desrosiers TA, Insaf TZ, Le MT, Evans SP, Romitti PA, Yazdy MM, Nembhard WN, Shaw GM. Assessing associations between residential proximity to greenspace and birth defects in the National Birth Defects Prevention Study. Environ Res 2023; 216:114760. [PMID: 36356662 PMCID: PMC10353702 DOI: 10.1016/j.envres.2022.114760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/31/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Residential proximity to greenspace is associated with various health outcomes. OBJECTIVES We estimated associations between maternal residential proximity to greenspace (based on an index of vegetation) and selected structural birth defects, including effect modification by neighborhood-level factors. METHODS Data were from the National Birth Defects Prevention Study (1997-2011) and included 19,065 infants with at least one eligible birth defect (cases) and 8925 without birth defects (controls) from eight Centers throughout the United States. Maternal participants reported their addresses throughout pregnancy. Each address was systematically geocoded and residences around conception were linked to greenspace, US Census, and US Department of Agriculture data. Greenspace was estimated using the normalized difference vegetation index (NDVI); average maximum NDVI was estimated within 100 m and 500 m concentric buffers surrounding geocoded addresses to estimate residential NDVI. We used logistic regression to estimate odds ratios (ORs) and 95% confidence intervals comparing those in the highest and lowest quartiles of residential NDVI and stratifying by rural/urban residence and neighborhood median income. RESULTS After multivariable adjustment, for the 500 m buffer, inverse associations were observed for tetralogy of Fallot, secundum atrial septal defects, anencephaly, anotia/microtia, cleft lip ± cleft palate, transverse limb deficiency, and omphalocele, (aORs: 0.54-0.86). Results were similar for 100 m buffer analyses and similar patterns were observed for other defects, though results were not significant. Significant heterogeneity was observed after stratification by rural/urban for hypoplastic left heart, coarctation of the aorta, and cleft palate, with inverse associations only among participants residing in rural areas. Stratification by median income showed heterogeneity for atrioventricular and secundum atrial septal defects, anencephaly, and anorectal atresia, with inverse associations only among participants residing in a high-income neighborhood (aORs: 0.45-0.81). DISCUSSION Our results suggest that perinatal residential proximity to more greenspace may contribute to a reduced risk of certain birth defects, especially among those living in rural or high-income neighborhoods.
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Affiliation(s)
- Kari A Weber
- Department of Epidemiology, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Wei Yang
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.
| | - Suzan L Carmichael
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA; Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA, USA.
| | - R Thomas Collins
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.
| | - Thomas J Luben
- Center for Public Health and Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, RTP, NC, USA.
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
| | - Tabassum Z Insaf
- Bureau of Environmental and Occupational Epidemiology, New York State Department of Health and Department of Epidemiology and Biostatistics, University at Albany, Albany, NY, USA.
| | - Mimi T Le
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX, USA.
| | - Shannon Pruitt Evans
- Eagle Global Scientific LLC, San Antonio, TX, USA; Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Paul A Romitti
- Department of Epidemiology, College of Public Health, The University of Iowa, Iowa City, IA, USA.
| | - Mahsa M Yazdy
- Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, MA, USA.
| | - Wendy N Nembhard
- Department of Epidemiology, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Gary M Shaw
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.
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13
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Fisher SC, Howley MM, Romitti PA, Desrosiers TA, Jabs EW, Browne ML. Maternal periconceptional alcohol consumption and gastroschisis in the National Birth Defects Prevention Study, 1997-2011. Paediatr Perinat Epidemiol 2022; 36:782-791. [PMID: 35437856 PMCID: PMC9990374 DOI: 10.1111/ppe.12882] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 03/14/2022] [Accepted: 03/22/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Gastroschisis is particularly prevalent among offspring of young women and has increased over recent decades. Although previous studies suggest that maternal alcohol consumption is associated with increased gastroschisis risk, none have explored whether maternal age modifies that association. OBJECTIVE The objective of the study was to evaluate associations between self-reported maternal periconceptional alcohol consumption (1 month prior through the third month after conception) and risk of gastroschisis among offspring, by maternal age. METHODS We used data from the National Birth Defects Prevention Study (NBDPS), a multi-site population-based case-control study. The analysis included 1450 gastroschisis cases and 11,829 unaffected liveborn controls delivered during 1997-2011 in ten US states. We estimated adjusted odds ratios (aOR) and 95% confidence intervals (CI) for the individual and joint effects of alcohol consumption and young maternal age at delivery (<25 years vs ≥25 years) on gastroschisis risk. We estimated the relative excess risk due to interaction (RERI) to quantify additive interaction. RESULTS Periconceptional alcohol consumption was common regardless of maternal age (women <25 years: cases 38.8%, controls 29.3%; women ≥25: cases 43.5%, controls 39.5%). Compared with women ≥25 years who did not consume alcohol, we observed increased risk of gastroschisis among women <25 years, with higher estimates among those who consumed alcohol (women <25 years who did not consume alcohol. aOR 5.90, 95% CI 4.89, 7.11; women <25 years who did consume alcohol: aOR 8.21, 95% CI 6.69, 10.07). Alcohol consumption among women ≥25 years was not associated with gastroschisis (aOR 1.12, 95% CI 0.88, 1.42). This suggests super-additive interaction between alcohol consumption and maternal age (RERI -2.19, 95% CI 1.02, 3.36). CONCLUSIONS Periconceptional alcohol consumption may disproportionately increase risk of gastroschisis among young mothers. Our findings support public health recommendations to abstain from alcohol consumption during pregnancy.
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Affiliation(s)
- Sarah C Fisher
- Birth Defects Registry, New York State Department of Health, Albany, New York, USA
| | - Meredith M Howley
- Birth Defects Registry, New York State Department of Health, Albany, New York, USA
| | - Paul A Romitti
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Ethylin Wang Jabs
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Marilyn L Browne
- Birth Defects Registry, New York State Department of Health, Albany, New York, USA
- Department of Epidemiology and Biostatistics, School of Public Health, University at Albany, Rensselaer, New York, USA
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14
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Renwick A, Schraw JM, Desrosiers TA, Janitz AE, Scheurer ME, Canfield MA, Langlois PH, Scheuerle AE, Plon SE, Lupo PJ. Abstract 1998: A population-based assessment of cancer risk in children with recurrent multiple congenital anomalies. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-1998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: There is emerging evidence that children with multiple congenital anomalies have a higher risk of developing cancer compared to unaffected children. However, there have been few population-based estimates of cancer risk among children with well-described patterns of recurrent multiple congenital anomalies (MCAs). VACTERL association is one such pattern that is defined by the presence of ≥3 of the following in the absence of a genetic diagnosis: vertebral defects, anal atresia, cardiac defects, tracheoesophageal fistula, renal, and limb anomalies. VACTERL occurs in approximately 5% of children with Fanconi anemia (FA), a known cancer predisposition syndrome. In spite of this, there are no population-based estimates of cancer risk in children with VACTERL. Therefore, we investigated if VACTERL confers an elevated risk of pediatric cancer by examining a birth cohort of >7 million children from three U.S. states (Texas, North Carolina, and Oklahoma) for the period 1997-2013.
Methods: Demographic and diagnostic data from birth certificates, birth defects registries, and cancer registries were linked in each state and pooled for analysis. For this analysis, children with chromosomal anomalies were excluded. We used Cox proportional hazards models to evaluate the risk of cancer before 19 years of age in three birth defect groups: (1) VACTERL; (2) ≥3 major anomalies but not VACTERL; and (3) 1 to 2 major anomalies. A hazard ratio (HR) and 95% confidence interval (CI) was calculated in each group for: (1) overall cancer risk and (2) risk of embryonal tumors (e.g., neuroblastoma, medulloblastoma, hepatoblastoma) based on reported associations between birth defects and these pediatric cancers.
Results: In our cohort of 7,767,786 births, we identified: 2,090 children (0.02%) with VACTERL; 32,558 children with ≥3 non-VACTERL defects; and 201,871 children with 1 to 2 defects. Respectively, these three groups had 10, 167, and 684 cases of cancer. Compared to children without birth defects, children with VACTERL (HR=3.9, 95% CI: 2.1 - 7.2), ≥3 non-VACTERL defects (4.2, 3.6 - 4.9), and 1 to 2 defects (2.7, 2.5 - 2.9), were all more likely to develop cancer. Risk was higher for embryonal tumors among children with VACTERL (10.4, 4.7 - 23.1) than for those with ≥3 non-VACTERL defects (5.6, 4.2 - 7.4) or 1 to 2 defects (3.9, 3.4 - 4.5).
Conclusion: In this population-based assessment, we demonstrated that children with VACTERL were more likely than other groups to develop cancer, particularly embryonal tumors, although the absolute cancer risk was <1%. Surprisingly, acute myeloid leukemia, a common malignancy among individuals with FA, was not diagnosed in any of the children with VACTERL, suggesting these associations are distinct from FA. These findings demonstrate that VACTERL subtypes and other recurrent MCAs may represent novel cancer predisposition syndromes.
Citation Format: Alexander Renwick, Jeremy M. Schraw, Tania A. Desrosiers, Amanda E. Janitz, Michael E. Scheurer, Mark A. Canfield, Peter H. Langlois, Angela E. Scheuerle, Sharon E. Plon, Philip J. Lupo. A population-based assessment of cancer risk in children with recurrent multiple congenital anomalies [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 1998.
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Affiliation(s)
| | | | | | - Amanda E. Janitz
- 3University of Oklahoma Health Sciences Center, Oklahoma City, OK
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15
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Wong EC, Fisher SC, Feldkamp ML, Romitti PA, Nestoridi E, Desrosiers TA. Factors associated with maternal consent for use of residual newborn bloodspots in the National Birth Defects Prevention Study. Birth Defects Res 2022; 114:238-248. [PMID: 35194969 DOI: 10.1002/bdr2.1991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/14/2022] [Accepted: 01/27/2022] [Indexed: 11/06/2022]
Abstract
PURPOSE We investigated factors associated with maternal consent to use residual newborn dried bloodspots (DBS) in a national case-control study of birth defects. METHODS A subset of sites in the National Birth Defects Prevention Study (NBDPS; 1997-2011) asked participants to provide consent for investigators to retrieve DBS from local newborn screening programs to use for research on risk factors for birth defects. We assessed whether consent differed by factors including maternal age, education, parity, body mass index, language of interview, country of birth, and case-control status. RESULTS Of 5,850 mothers of cases and 2,534 mothers of controls, 57% provided consent for the DBS component. Mothers of cases were more likely to participate than mothers of controls (61% vs. 52%), as were mothers who self-reported white race, >12 years of education, and born in the United States. CONCLUSIONS Retrieval of DBS can be integrated into retrospective studies of neonatal outcomes including birth defects. In NBDPS, participation in the DBS component was moderate and varied by some sociodemographic factors. Further research is needed to better understand families' perspectives on using residual DBS for secondary research. Representative participation is important to reduce the potential for selection bias in future studies using DBS for children's health research.
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Affiliation(s)
- Eugene C Wong
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Sarah C Fisher
- Birth Defects Registry, New York State Department of Health, Albany, New York, USA
| | - Marcia L Feldkamp
- Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Paul A Romitti
- College of Public Health, The University of Iowa, Iowa City, Iowa, USA
| | - Eirini Nestoridi
- Massachusetts Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, Massachusetts, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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16
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Simmons W, Lin S, Luben TJ, Sheridan SC, Langlois PH, Shaw GM, Reefhuis J, Romitti PA, Feldkamp ML, Nembhard WN, Desrosiers TA, Browne ML, Stingone JA. Modeling complex effects of exposure to particulate matter and extreme heat during pregnancy on congenital heart defects: A U.S. population-based case-control study in the National Birth Defects Prevention Study. Sci Total Environ 2022; 808:152150. [PMID: 34864029 PMCID: PMC8758551 DOI: 10.1016/j.scitotenv.2021.152150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/19/2021] [Accepted: 11/29/2021] [Indexed: 05/04/2023]
Abstract
BACKGROUND/OBJECTIVE Research suggests gestational exposure to particulate matter ≤2.5 μm (PM2.5) and extreme heat may independently increase risk of birth defects. We investigated whether duration of gestational extreme heat exposure modifies associations between PM2.5 exposure and specific congenital heart defects (CHDs). We also explored nonlinear exposure-outcome relationships. METHODS We identified CHD case children (n = 2824) and non-malformed live-birth control children (n = 4033) from pregnancies ending between 1999 and 2007 in the National Birth Defects Prevention Study, a U.S. population-based multicenter case-control study. We assigned mothers 6-week averages of PM2.5 exposure during the cardiac critical period (postconceptional weeks 3-8) using the closest monitor within 50 km of maternal residence. We assigned a count of extreme heat days (EHDs, days above the 90th percentile of daily maximum temperature for year, season, and weather station) during this period using the closest weather station. Using generalized additive models, we explored logit-nonlinear exposure-outcome relationships, concluding logistic models were reasonable. We estimated joint effects of PM2.5 and EHDs on six CHDs using logistic regression models adjusted for mean dewpoint and maternal age, education, and race/ethnicity. We assessed multiplicative and additive effect modification. RESULTS Conditional on the highest observed EHD count (15) and at least one critical period day during spring/summer, each 5 μg/m3 increase in average PM2.5 exposure was significantly associated with perimembranous ventricular septal defects (VSDpm; OR: 1.54 [95% CI: 1.01, 2.41]). High EHD counts (8+) in the same population were positively, but non-significantly, associated with both overall septal defects and VSDpm. Null or inverse associations were observed for lower EHD counts. Multiplicative and additive effect modification estimates were consistently positive in all septal models. CONCLUSIONS Results provide limited evidence that duration of extreme heat exposure modifies the PM2.5-septal defects relationship. Future research with enhanced exposure assessment and modeling techniques could clarify these relationships.
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Affiliation(s)
- Will Simmons
- Department of Epidemiology, Columbia University, 722 West 168(th) Street, NY, New York 10032, USA
| | - Shao Lin
- Department of Epidemiology and Biostatistics, University at Albany, 1 University Place, Rensselaer, NY 12144, USA; Department of Environmental Health Sciences, University at Albany, 1 University Place, Rensselaer, NY, 12144, USA
| | - Thomas J Luben
- Office of Research and Development, U.S. Environmental Protection Agency, 109 T.W. Alexander Drive, RTP, NC 27711, USA
| | - Scott C Sheridan
- Department of Geography, Kent State University, 325 S. Lincoln Street, Kent, OH 44242, USA
| | - Peter H Langlois
- Department of Epidemiology, Human Genetics, and Environmental Science, University of Texas School of Public Health, 1616 Guadalupe Street, Austin, TX 78701, USA
| | - Gary M Shaw
- Stanford School of Medicine, 453 Quarry Road, Stanford, CA 94305, USA
| | - Jennita Reefhuis
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, USA
| | - Paul A Romitti
- Department of Epidemiology, The University of Iowa, 145 N. Riverside Drive, Iowa City, IA 52242, USA
| | - Marcia L Feldkamp
- Department of Pediatrics, University of Utah School of Medicine, 295 Chipeta Way, Salt Lake City, UT 84108, USA
| | - Wendy N Nembhard
- Departments of Pediatrics and Epidemiology, University of Arkansas for Medical Sciences, 4301 W Markham Street, Little Rock, AR 72205, USA
| | - Tania A Desrosiers
- Department of Epidemiology, University of North Carolina, 135 Dauer Drive, Chapel Hill, NC 27599, USA
| | - Marilyn L Browne
- Department of Epidemiology and Biostatistics, University at Albany, 1 University Place, Rensselaer, NY 12144, USA; Birth Defects Registry, New York State Department of Health, Corning Tower, Empire State Plaza, Albany, NY 12237, USA
| | - Jeanette A Stingone
- Department of Epidemiology, Columbia University, 722 West 168(th) Street, NY, New York 10032, USA.
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17
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Marcotte EL, Schraw JM, Desrosiers TA, Nembhard WN, Langlois PH, Canfield MA, Meyer RE, Plon SE, Lupo PJ. Male Sex and the Risk of Childhood Cancer: The Mediating Effect of Birth Defects. JNCI Cancer Spectr 2020; 4:pkaa052. [PMID: 33134832 PMCID: PMC7583156 DOI: 10.1093/jncics/pkaa052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 05/22/2020] [Accepted: 06/05/2020] [Indexed: 11/30/2022] Open
Abstract
Background There is a persistent, unexplained disparity in sex ratio among childhood cancer cases, whereby males are more likely to develop most cancers. This male predominance is also seen for most birth defects, which are strongly associated with risk of childhood cancer. We conducted mediation analysis to estimate whether the increased risk of cancer among males is partially explained by birth defect status. Methods We used a population-based birth cohort with linked data from birth certificates, birth defects registries, and cancer registries from Arkansas, Michigan, North Carolina, and Texas. We conducted counterfactual mediation analysis to estimate the natural direct and indirect effects of sex on cancer risk, modeling birth defect status as mediator. State; birth year; plurality; and maternal race and ethnicity, age, and education were considered confounders. We conducted separate analyses limited to cancers diagnosed younger than 1 year of age. Results Our dataset included 10 181 074 children: 15 110 diagnosed with cancer, 539 567 diagnosed with birth defects, and 2124 co-occurring cases. Birth defect status mediated 38% of the association between sex and cancer overall. The proportion mediated varied by cancer type, including acute myeloid leukemia (93%), neuroblastoma (35%), and non-Hodgkin lymphoma (6%). Among children younger than 1 year of age at cancer diagnosis, the proportion mediated was substantially higher (82%). Conclusions Our results suggest that birth defects mediate a statistically significant proportion of the relationship between sex and childhood cancer. The proportion mediated varied by cancer type and diagnosis age. These findings improve our understanding of the causal pathway underlying male sex as a risk factor for childhood cancer.
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Affiliation(s)
- Erin L Marcotte
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Jeremy M Schraw
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Tania A Desrosiers
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - Wendy N Nembhard
- Department of Epidemiology, University of Arkansas for Medical Sciences, and Arkansas Children's Research Institute, Little Rock, AR, USA
| | | | | | - Robert E Meyer
- Department of Maternal and Child Health, University of North Carolina, Chapel Hill, NC, USA
| | - Sharon E Plon
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.,Texas Children's Cancer Center, Texas Children's Hospital, Houston, TX, USA
| | - Philip J Lupo
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.,Texas Children's Cancer Center, Texas Children's Hospital, Houston, TX, USA
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18
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Heinke D, Rich-Edwards JW, Williams PL, Hernandez-Diaz S, Anderka M, Fisher SC, Desrosiers TA, Shaw GM, Romitti PA, Canfield M, Yazdy MM. Quantification of selection bias in studies of risk factors for birth defects among livebirths. Paediatr Perinat Epidemiol 2020; 34:655-664. [PMID: 32249969 PMCID: PMC7541428 DOI: 10.1111/ppe.12650] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 12/20/2019] [Accepted: 01/05/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Risk factors for birth defects are frequently investigated using data limited to liveborn infants. By conditioning on survival, results of such studies may be distorted by selection bias, also described as "livebirth bias." However, the implications of livebirth bias on risk estimation remain poorly understood. OBJECTIVES We sought to quantify livebirth bias and to investigate the conditions under which it arose. METHODS We used data on 3994 birth defects cases and 11 829 controls enrolled in the National Birth Defects Prevention Study to compare odds ratio (OR) estimates of the relationship between three established risk factors (antiepileptic drug use, smoking, and multifetal pregnancy) and four birth defects (anencephaly, spina bifida, omphalocele, and cleft palate) when restricted to livebirths as compared to among livebirths, stillbirths, and elective terminations. Exposures and birth defects represented varying strengths of association with livebirth; all controls were liveborn. We performed a quantitative bias analysis to evaluate the sensitivity of our results to excluding terminated and stillborn controls. RESULTS Cases ranged from 33% liveborn (anencephaly) to 99% (cleft palate). Smoking and multifetal pregnancy were associated with livebirth among anencephaly (crude OR [cOR] 0.61 and cOR 3.15, respectively) and omphalocele cases (cOR 2.22 and cOR 5.22, respectively). For analyses of the association between exposures and birth defects, restricting to livebirths produced negligible differences in estimates except for anencephaly and multifetal pregnancy, which was twofold higher among livebirths (adjusted OR [aOR] 4.93) as among all pregnancy outcomes (aOR 2.44). Within tested scenarios, bias analyses suggested that results were not sensitive to the restriction to liveborn controls. CONCLUSIONS Selection bias was generally limited except for high mortality defects in the context of exposures strongly associated with livebirth. Findings indicate that substantial livebirth bias is unlikely to affect studies of risk factors for most birth defects.
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Affiliation(s)
- Dominique Heinke
- Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, Massachusetts,Harvard TH Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Janet W. Rich-Edwards
- Harvard TH Chan School of Public Health, Harvard University, Boston, Massachusetts,Harvard Medical School, Harvard University, Boston, Massachusetts,Brigham and Women’s Hospital, Boston, Massachusetts
| | - Paige L. Williams
- Harvard TH Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Sonia Hernandez-Diaz
- Harvard TH Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Marlene Anderka
- Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, Massachusetts
| | - Sarah C. Fisher
- Congenital Malformations Registry, New York State Department of Health, Albany, New York
| | - Tania A. Desrosiers
- University of North Carolina Gillings School of Global Public Health, Chapel Hill, North Carolina
| | - Gary M. Shaw
- Stanford University School of Medicine, Stanford University, Stanford, California
| | - Paul A. Romitti
- College of Public Health, The University of Iowa, Iowa City, Iowa
| | - Mark Canfield
- Texas Department of State Health Services, Austin, Texas
| | - Mahsa M. Yazdy
- Center for Birth Defects Research and Prevention, Massachusetts Department of Public Health, Boston, Massachusetts
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19
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Hansen C, Desrosiers TA, Wisniewski K, Strickland MJ, Werler MM, Gilboa SM. Use of antihistamine medications during early pregnancy and selected birth defects: The National Birth Defects Prevention Study, 1997-2011. Birth Defects Res 2020; 112:1234-1252. [PMID: 32657014 DOI: 10.1002/bdr2.1749] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/24/2020] [Accepted: 06/08/2020] [Indexed: 01/20/2023]
Abstract
BACKGROUND It is estimated that approximately 10-15% of pregnant women report antihistamine use during pregnancy. Although antihistamines are generally considered safe during pregnancy, results from published studies are inconsistent. METHODS Using a case-control study design we analyzed 41,148 pregnancies (30,091 cases and 11,057 controls) from the National Birth Defects Prevention Study (1997-2011). Logistic regression models were used to estimate odds ratios (OR) and 95% confidence intervals for 64 birth defect groupings in relation to early pregnancy exposure to 14 distinct antihistamines. Models were adjusted for maternal age, race, parity, education level, prenatal care, folic acid use, smoking and alcohol use, and study site. RESULTS Approximately 13% of cases and controls were exposed to an antihistamine during early pregnancy. Analyses were restricted to those defects where more than five cases were exposed to the antihistamine of interest, generating 340 analyses which yielded 20 (5.9%) significant positive associations (adjusted ORs ranging from 1.21 to 4.34). CONCLUSIONS Only a few of our findings were consistent with previous studies. There is a lack of strong evidence to conclude that birth defects are associated with exposure to antihistamines during early pregnancy.
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Affiliation(s)
- Craig Hansen
- CDT Analytics, Adelaide, South Australia, Australia
| | - Tania A Desrosiers
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Kathy Wisniewski
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, USA
| | | | - Martha M Werler
- Boston University School of Public Health, Boston, Massachusetts, USA
| | - Suzanne M Gilboa
- Centers for Disease Control and Prevention, National Center on Birth Defects and Developmental Disabilities, Atlanta, Georgia, USA
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20
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Patel J, Nembhard WN, Politis MD, Rocheleau CM, Langlois PH, Shaw GM, Romitti PA, Gilboa SM, Desrosiers TA, Insaf T, Lupo PJ. Maternal occupational exposure to polycyclic aromatic hydrocarbons and the risk of isolated congenital heart defects among offspring. Environ Res 2020; 186:109550. [PMID: 32335433 PMCID: PMC8756335 DOI: 10.1016/j.envres.2020.109550] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/07/2020] [Accepted: 04/15/2020] [Indexed: 05/19/2023]
Abstract
BACKGROUND Although there is evidence in experimental model systems that exposure to polycyclic aromatic hydrocarbons (PAHs) is linked with congenital heart defects (CHDs), few studies have examined the association in humans. We conducted a case-control study to examine the association between maternal exposure to PAHs and CHDs in offspring using data from the National Birth Defects Prevention Study (NBDPS) (1997-2011). METHODS We obtained detailed information on maternal occupation during the month before to three months after conception. Expert raters, masked to case-control status, assessed job descriptions to assign categorical levels of exposure. Categories were quantitatively mapped to estimate cumulative exposure to PAHs, incorporating exposure intensity, frequency, work duration, and work hours. Quartiles were generated for cumulative maternal exposure to PAHs. Crude and adjusted odds ratios (ORs) with 95% confidence intervals (CIs) were estimated using unconditional logistic regression for quartiles of PAH exposure and six CHD groupings (e.g. conotruncal) and specific subtypes (e.g. tetralogy of Fallot [ToF]). Final models were adjusted for maternal age, race/ethnicity, education, smoking, anticonvulsant use, folic acid supplementation, and study center. RESULTS There were 4,775 case and 7,734 control infants eligible for the study. The prevalence of occupational exposure to PAHs was 10.2% among both case and control mothers. In adjusted analysis, compared to mothers with no occupational PAH exposure, those in the highest quartile of exposure were more likely to have offspring in the conotruncal heart defects group (OR 1.41; 95% CI 1.00-2.00), and with ToF (OR 1.83; 95% CI 1.21-2.78). CONCLUSIONS Women in the highest quartile of estimated cumulative occupational PAH exposure during early pregnancy were more likely to have offspring with conotruncal heart defects, specifically ToF, compared to women with no occupational PAH exposure. Other comparisons between PAHs and other CHDs subgroups did not show any statistically precise associations.
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Affiliation(s)
- Jenil Patel
- Department of Epidemiology, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Wendy N Nembhard
- Department of Epidemiology, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Maria D Politis
- Department of Epidemiology, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Arkansas Center for Birth Defects Research and Prevention, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Carissa M Rocheleau
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, OH, USA
| | - Peter H Langlois
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX, USA
| | - Gary M Shaw
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Paul A Romitti
- Department of Epidemiology, College of Public Health, The University of Iowa, Iowa City, IA, USA
| | - Suzanne M Gilboa
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Tabassum Insaf
- Bureau of Environmental and Occupational Epidemiology, Center for Environmental Health, New York State Department of Health, Albany, NY, USA; Department of Epidemiology and Biostatistics, School of Public Health, University at Albany, Rensselaer, NY, USA
| | - Philip J Lupo
- Department of Pediatrics, Section of Hematology-Oncology, Baylor College of Medicine, Houston, TX, USA
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21
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Schraw JM, Desrosiers TA, Nembhard WN, Langlois PH, Meyer RE, Canfield MA, Rasmussen SA, Chambers TM, Spector LG, Plon SE, Lupo PJ. Cancer diagnostic profile in children with structural birth defects: An assessment in 15,000 childhood cancer cases. Cancer 2020; 126:3483-3492. [PMID: 32469081 DOI: 10.1002/cncr.32982] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 04/27/2020] [Accepted: 05/01/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Birth defects are established risk factors for childhood cancer. Nonetheless, cancer epidemiology in children with birth defects is not well characterized. METHODS Using data from population-based registries in 4 US states, this study compared children with cancer but no birth defects (n = 13,111) with children with cancer and 1 or more nonsyndromic birth defects (n = 1616). The objective was to evaluate cancer diagnostic characteristics, including tumor type, age at diagnosis, and stage at diagnosis. RESULTS Compared with the general population of children with cancer, children with birth defects were diagnosed with more embryonal tumors (26.6% vs 18.7%; q < 0.001), including neuroblastoma (12.5% vs 8.2%; q < 0.001) and hepatoblastoma (5.0% vs 1.3%; q < 0.001), but fewer hematologic malignancies, including acute lymphoblastic leukemia (12.4% vs 24.4%; q < 0.001). In age-stratified analyses, differences in tumor type were evident among children younger than 1 year and children 1 to 4 years old, but they were attenuated among children 5 years of age or older. The age at diagnosis was younger in children with birth defects for most cancers, including leukemia, lymphoma, astrocytoma, medulloblastoma, ependymoma, embryonal tumors, and germ cell tumors (all q < 0.05). CONCLUSIONS The results indicate possible etiologic heterogeneity in children with birth defects, have implications for future surveillance efforts, and raise the possibility of differential cancer ascertainment in children with birth defects. LAY SUMMARY Scientific studies suggest that children with birth defects are at increased risk for cancer. However, these studies have not been able to determine whether important tumor characteristics, such as the type of tumor diagnosed, the age at which the tumor is diagnosed, and the degree to which the tumor has spread at the time of diagnosis, are different for children with birth defects and children without birth defects. This study attempts to answer these important questions. By doing so, it may help scientists and physicians to understand the causes of cancer in children with birth defects and diagnose cancer at earlier stages when it is more treatable.
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Affiliation(s)
- Jeremy M Schraw
- Department of Medicine, Baylor College of Medicine, Houston, Texas.,Center for Epidemiology and Population Health, Baylor College of Medicine, Houston, Texas
| | - Tania A Desrosiers
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina
| | - Wendy N Nembhard
- Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Peter H Langlois
- Birth Defects Epidemiology and Surveillance Branch, Department of State Health Services, Austin, Texas
| | - Robert E Meyer
- Department of Maternal and Child Health, University of North Carolina, Chapel Hill, North Carolina.,State Center for Health Statistics, North Carolina Division of Public Health, Raleigh, North Carolina
| | - Mark A Canfield
- Birth Defects Epidemiology and Surveillance Branch, Department of State Health Services, Austin, Texas
| | - Sonja A Rasmussen
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, Florida.,Department of Epidemiology, University of Florida College of Medicine and College of Public Health and Health Professions, Gainesville, Florida
| | - Tiffany M Chambers
- Center for Epidemiology and Population Health, Baylor College of Medicine, Houston, Texas.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Logan G Spector
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Sharon E Plon
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Philip J Lupo
- Department of Medicine, Baylor College of Medicine, Houston, Texas.,Center for Epidemiology and Population Health, Baylor College of Medicine, Houston, Texas.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas
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22
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Moore KJ, Carmichael SL, Forestieri NE, Desrosiers TA, Meyer RE, Freedman SF, North KE, Olshan AF. Maternal diet as a risk factor for primary congenital glaucoma and defects of the anterior segment of the eye in the National Birth Defects Prevention Study. Birth Defects Res 2020; 112:503-514. [PMID: 32154673 DOI: 10.1002/bdr2.1664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 01/10/2020] [Accepted: 02/18/2020] [Indexed: 12/15/2022]
Abstract
Primary congenital glaucoma (PCG) and anterior segment defects (ASDs) are rare ocular malformations diagnosed early in life which can cause blindness. Pathogenic variants in several genes have been linked to these conditions, but little is known about nongenetic risk factors. We investigated the association between maternal nutrition and PCG and ASDs in the National Birth Defects Prevention Study, a large population-based, multicenter case-control study of major birth defects in the United States. Mothers of cases (n = 152) and control infants without a birth defect (n = 9,178) completed an interview which included a food frequency questionnaire capturing usual dietary intake in the year before pregnancy. Maternal nutrition was assessed through individual nutrient intake, calculating a Diet Quality Index for Pregnancy (DQI-P) score for each mother, and using latent class analysis to empirically derive four dietary patterns. We calculated adjusted odds ratios (aORs) and 95% confidence intervals (CI) using logistic regression. The results for individual nutrients varied, with some having an inverse or U-shaped pattern of association with increasing intake. The DQI-P was not associated with risk of PCG and ASDs (aOR 0.91; CI 0.49-1.66, highest vs. lowest quartile). The dietary pattern analysis suggested lower odds among women with a Prudent and Mexican dietary pattern (aOR 0.82, 95% CI 0.52-1.29; aOR 0.80, 95% CI 0.36-1.78, respectively) compared to those with a Western dietary pattern. We found that higher intake of some nutrients and certain dietary patterns may be inversely associated with PCG and ASDs, though caution is urged due to imprecision of estimates.
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Affiliation(s)
- Kristin J Moore
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Program in Health Disparities Research, University of Minnesota Twin Cities, Minneapolis, Minnesota, USA
| | - Suzan L Carmichael
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
| | - Nina E Forestieri
- State Center for Health Statistics, North Carolina Birth Defects Monitoring Program, Raleigh, North Carolina, USA
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Robert E Meyer
- State Center for Health Statistics, North Carolina Birth Defects Monitoring Program, Raleigh, North Carolina, USA.,Department of Maternal and Child Health, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Sharon F Freedman
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA
| | - Kari E North
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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23
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Spinder N, Almli LM, Desrosiers TA, Arnold KE, Bergman JEH, Kromhout H, Boezen HM, de Walle HEK, Rocheleau C, Reefhuis J. Maternal occupational exposure to solvents and gastroschisis in offspring - National Birth Defects Prevention Study 1997-2011. Occup Environ Med 2020; 77:172-178. [PMID: 31949041 PMCID: PMC7035687 DOI: 10.1136/oemed-2019-106147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/27/2019] [Accepted: 12/14/2019] [Indexed: 11/22/2022]
Abstract
Objectives The aim of this study was to assess the association between maternal occupational exposure to solvents and gastroschisis in offspring. Methods We used data from the National Birth Defects Prevention Study, a large population-based case-control study of major birth defects conducted in 10 US states from 1997 to 2011. Infants with gastroschisis were ascertained by active birth defects surveillance systems. Control infants without major birth defects were selected from vital records or birth hospital records. Self-reported maternal occupational histories were collected by telephone interview. Industrial hygienists reviewed this information to estimate exposure to aromatic, chlorinated and petroleum-based solvents from 1 month before conception through the first trimester of pregnancy. Cumulative exposure to solvents was estimated for the same period accounting for estimated exposure intensity and frequency, job duration and hours worked per week. ORs and 95% CIs were estimated to assess the association between exposure to any solvents or solvent classes, and gastroschisis risk. Results Among 879 cases and 7817 controls, the overall prevalence of periconceptional solvent exposure was 7.3% and 7.4%, respectively. Exposure to any solvent versus no exposure to solvents was not associated with gastroschisis after adjusting for maternal age (OR 1.00, 95% CI 0.75 to 1.32), nor was an association noted for solvent classes. There was no exposure-response relationship between estimated cumulative solvent exposure and gastroschisis after adjusting for maternal age. Conclusion Our study found no association between maternal occupational solvent exposure and gastroschisis in offspring. Further research is needed to understand risk factors for gastroschisis.
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Affiliation(s)
- Nynke Spinder
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia, United States .,Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands.,Department of Genetics, Univeristy of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Lynn M Almli
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia, United States
| | - Tania A Desrosiers
- Gillings School of Global Public Health, Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, United States
| | - Kathryn E Arnold
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia, United States
| | - Jorieke E H Bergman
- Department of Genetics, Univeristy of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Hans Kromhout
- Institute for Risk Assessment Sciences, Division of Environmental Epidemiology, Utrecht University, Utrecht, Netherlands
| | - H Marike Boezen
- Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Hermien E K de Walle
- Department of Genetics, Univeristy of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Carissa Rocheleau
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, Ohio, United States
| | - Jennita Reefhuis
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia, United States
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24
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Choi G, Stingone JA, Desrosiers TA, Olshan AF, Nembhard WN, Shaw GM, Pruitt S, Romitti PA, Yazdy MM, Browne ML, Langlois PH, Botto L, Luben TJ. Maternal exposure to outdoor air pollution and congenital limb deficiencies in the National Birth Defects Prevention Study. Environ Res 2019; 179:108716. [PMID: 31546130 PMCID: PMC6842662 DOI: 10.1016/j.envres.2019.108716] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/28/2019] [Accepted: 09/01/2019] [Indexed: 05/04/2023]
Abstract
BACKGROUND Congenital limb deficiencies (CLDs) are a relatively common group of birth defects whose etiology is mostly unknown. Recent studies suggest maternal air pollution exposure as a potential risk factor. AIM To investigate the relationship between ambient air pollution exposure during early pregnancy and offspring CLDs. METHODS The study population was identified from the National Birth Defects Prevention Study, a population-based multi-center case-control study, and consisted of 615 CLD cases and 5,701 controls with due dates during 1997 through 2006. Daily averages and/or maxima of six criteria air pollutants (particulate matter <2.5 μm [PM2.5], particulate matter <10 μm [PM10], nitrogen dioxide [NO2], sulfur dioxide [SO2], carbon monoxide [CO], and ozone [O3]) were averaged over gestational weeks 2-8, as well as for individual weeks during this period, using data from EPA air monitors nearest to the maternal address. Logistic regression was used to estimate odds ratios (aORs) and 95% confidence intervals (CIs) adjusted for maternal age, race/ethnicity, education, and study center. We estimated aORs for any CLD and CLD subtypes (i.e., transverse, longitudinal, and preaxial). Potential confounding by co-pollutant was assessed by adjusting for one additional air pollutant. Using the single pollutant model, we further investigated effect measure modification by body mass index, cigarette smoking, and folic acid use. Sensitivity analyses were conducted restricting to those with a residence closer to an air monitor. RESULTS We observed near-null aORs for CLDs per interquartile range (IQR) increase in PM10, PM2.5, and O3. However, weekly averages of the daily average NO2 and SO2, and daily max NO2, SO2, and CO concentrations were associated with increased odds of CLDs. The crude ORs ranged from 1.03 to 1.12 per IQR increase in these air pollution concentrations, and consistently elevated aORs were observed for CO. Stronger associations were observed for SO2 and O3 in subtype analysis (preaxial). In co-pollutant adjusted models, associations with CO remained elevated (aORs: 1.02-1.30); but aORs for SO2 and NO2 became near-null. The aORs for CO remained elevated among mothers who lived within 20 km of an air monitor. The aORs varied by maternal BMI, smoking status, and folic acid use. CONCLUSION We observed modest associations between CLDs and air pollution exposures during pregnancy, including CO, SO2, and NO2, though replication through further epidemiologic research is warranted.
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Affiliation(s)
- Giehae Choi
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, United States.
| | - Jeanette A Stingone
- Department of Epidemiology, Columbia University, New York, NY, United States
| | - Tania A Desrosiers
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, United States
| | - Andrew F Olshan
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, United States
| | - Wendy N Nembhard
- Department of Epidemiology, Fay Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Gary M Shaw
- Stanford School of Medicine, Stanford, CA, United States
| | - Shannon Pruitt
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA, United States; Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States
| | - Paul A Romitti
- Department of Epidemiology, The University of Iowa, Iowa City, IA, United States
| | - Mahsa M Yazdy
- Massachusetts Department of Health, Boston, MA, United States
| | | | - Peter H Langlois
- Texas Department of State Health Services, Austin, TX, United States
| | - Lorenzo Botto
- Division of Medical Genetics, Department of Pediatrics, University of Utah, Salt Lake City, UT, USA
| | - Thomas J Luben
- Office of Research and Development, U.S. Environmental Protection Agency, RTP, NC, United States
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25
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Alman BL, Stingone JA, Yazdy M, Botto LD, Desrosiers TA, Pruitt S, Herring AH, Langlois PH, Nembhard WN, Shaw GM, Olshan AF, Luben TJ. Associations between PM 2.5 and risk of preterm birth among liveborn infants. Ann Epidemiol 2019; 39:46-53.e2. [PMID: 31678056 PMCID: PMC7315599 DOI: 10.1016/j.annepidem.2019.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 09/19/2019] [Accepted: 09/28/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE Studies suggest exposure to ambient particulate matter less than 2.5 μg/m3 in aerodynamic diameter (PM2.5) may be associated with preterm birth (PTB), but few have evaluated how this is modified by ambient temperature. We investigated the relationship between PM2.5 exposure during pregnancy and PTB in infants without birth defects (1999-2006) and enrolled in the National Birth Defects Prevention Study and how it is modified by concurrent temperature. METHODS PTB was defined as spontaneous or iatrogenic delivery before 37 weeks. Exposure was assigned using inverse distance weighting with up to four monitors within 50 kilometers of maternal residence. To account for state-level variations, a Bayesian two-level hierarchal model was developed. RESULTS PTB was associated with PM2.5 during the third and fourth months of pregnancy (range: (odds ratio (95% confidence interval) = 1.00 (0.35, 2.15) to 1.49 (0.82, 2.68) and 1.31 (0.56, 2.91) to 1.62 (0.7, 3.32), respectively); no week of exposure conveyed greater risk. Temperature may modify this relationship; higher local average temperatures during pregnancy yielded stronger positive relationships between PM2.5 and PTB compared to nonstratified results. CONCLUSIONS Results add to literature on associations between PM2.5 and PTB, underscoring the importance of considering co-exposures when estimating effects of PM2.5 exposure during pregnancy.
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Affiliation(s)
- Breanna L Alman
- Office of Air and Radiation, U.S. Environmental Protection Agency, Research Triangle Park, NC
| | - Jeanette A Stingone
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, NY, NY
| | - Mahsa Yazdy
- Massachusetts Department of Public Health, Boston, MA
| | - Lorenzo D Botto
- Department of Pediatrics, University of Utah, Salt Lake City
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, UNC Chapel Hill, NC
| | - Shannon Pruitt
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention (CDC), Atlanta, GA; Oak Ridge Institute for Science and Education, Oak Ridge, TN
| | - Amy H Herring
- Global Health Institute, Duke University, Durham, NC
| | - Peter H Langlois
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX
| | - Wendy N Nembhard
- Departments of Pediatrics and Epidemiology, University of Arkansas for Medical Sciences, Little Rock, AR
| | - Gary M Shaw
- Department of Pediatrics, Stanford University, Stanford, CA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, UNC Chapel Hill, NC
| | - Thomas J Luben
- Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC.
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26
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Pace ND, Siega-Riz AM, Olshan AF, Chescheir NC, Cole SR, Desrosiers TA, Tinker SC, Hoyt AT, Canfield MA, Carmichael SL, Meyer RE. Survival of infants with spina bifida and the role of maternal prepregnancy body mass index. Birth Defects Res 2019; 111:1205-1216. [PMID: 31322328 PMCID: PMC7285624 DOI: 10.1002/bdr2.1552] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/08/2019] [Accepted: 06/30/2019] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To investigate first-year survival of infants born with spina bifida, and examine the association of maternal prepregnancy body mass index (BMI) with infant mortality. METHODS This is a retrospective cohort study of 1,533 liveborn infants with nonsyndromic spina bifida with estimated dates of delivery from 1998 to 2011 whose mothers were eligible for the National Birth Defects Prevention Study (NBDPS). NBDPS data were linked to death records to conduct survival analyses. Kaplan-Meier survival functions estimated mortality risk over the first year of life. Cox proportional hazards models estimated hazard ratios (HRs) for maternal prepregnancy BMI categorized as underweight (<18.5), normal (18.5-24.9), overweight (25-29.9), and obese (≥30). RESULTS Infant mortality risk among infants with spina bifida was (4.4% [3.52, 5.60%]). Infants with multiple co-occurring defects, very preterm delivery, multiple gestation, high-level spina bifida lesions, or non-Hispanic Black mothers had an elevated risk of infant mortality. Maternal prepregnancy underweight and obesity were associated with higher infant mortality (15.7% [7.20, 32.30%] and 5.82% [3.60, 9.35%], respectively). Adjusted HR estimates showed underweight and obese mothers had greater hazard of infant mortality compared to normal weight mothers (HR: 4.5 [1.08, 16.72] and 2.6 [1.36, 8.02], respectively). CONCLUSION The overall risk of infant mortality for infants born with spina bifida was lower than most previously reported estimates. Infants born with spina bifida to mothers who were underweight or obese prepregnancy were at higher risk of infant mortality. This study provides additional evidence of the importance of healthy maternal weight prior to pregnancy.
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Affiliation(s)
- Nelson D. Pace
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Anna Maria Siega-Riz
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Andrew F. Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Nancy C. Chescheir
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Stephen R. Cole
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Tania A. Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Sarah C. Tinker
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Adrienne T. Hoyt
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas
| | - Mark A. Canfield
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas
| | - Suzan L. Carmichael
- Department of Pediatrics, Division of Neonatology and Developmental Medicine, Stanford University School of Medicine, Stanford, California
| | - Robert E. Meyer
- Birth Defects Monitoring Program, North Carolina Department of Health and Human Services, Raleigh, North Carolina
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27
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Lupo PJ, Schraw JM, Desrosiers TA, Nembhard WN, Langlois PH, Canfield MA, Copeland G, Meyer RE, Brown AL, Chambers TM, Sok P, Danysh HE, Carozza SE, Sisoudiya SD, Hilsenbeck SG, Janitz AE, Oster ME, Scheuerle AE, Schiffman JD, Luo C, Mian A, Mueller BA, Huff CD, Rasmussen SA, Scheurer ME, Plon SE. Association Between Birth Defects and Cancer Risk Among Children and Adolescents in a Population-Based Assessment of 10 Million Live Births. JAMA Oncol 2019; 5:1150-1158. [PMID: 31219523 DOI: 10.1001/jamaoncol.2019.1215] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Importance Birth defects affect approximately 1 in 33 children. Some birth defects are known to be strongly associated with childhood cancer (eg, trisomy 21 and acute leukemia). However, comprehensive evaluations of childhood cancer risk in those with birth defects have been limited in previous studies by insufficient sample sizes. Objectives To identify specific birth defect-childhood cancer (BD-CC) associations and characterize cancer risk in children by increasing number of nonchromosomal birth defects. Design, Setting, and Participants This multistate, population-based registry linkage study pooled statewide data on births, birth defects, and cancer from Texas, Arkansas, Michigan, and North Carolina on 10 181 074 children born from January 1, 1992, to December 31, 2013. Children were followed up to 18 years of age for a diagnosis of cancer. Data were retrieved between September 26, 2016, and September 21, 2017, and data analysis was performed from September 2, 2017, to March 21, 2019. Exposures Birth defects diagnoses (chromosomal anomalies and nonchromosomal birth defects) recorded by statewide, population-based birth defects registries. Main Outcomes and Measures Cancer diagnosis before age 18 years, as recorded in state cancer registries. Cox regression models were used to generate hazard ratios (HRs) and 95% CIs to evaluate BD-CC associations and the association between number of nonchromosomal defects and cancer risk. Results Compared with children without any birth defects, children with chromosomal anomalies were 11.6 (95% CI, 10.4-12.9) times more likely to be diagnosed with cancer, whereas children with nonchromosomal birth defects were 2.5 (95% CI, 2.4-2.6) times more likely to be diagnosed with cancer before 18 years of age. An increasing number of nonchromosomal birth defects was associated with a corresponding increase in the risk of cancer. Children with 4 or more major birth defects were 5.9 (95% CI, 5.3-6.4) times more likely to be diagnosed with cancer compared with those without a birth defect. In the analysis of 72 specific BD-CC patterns, 40 HRs were statistically significant (adjusted P < .05) after accounting for multiple comparisons. Cancers most frequently associated with nonchromosomal defects were hepatoblastoma and neuroblastoma. Conclusions and Relevance Several significant and novel associations were observed between specific birth defects and cancers. Among children with nonchromosomal birth defects, the number of major birth defects diagnosed was significantly and directly associated with cancer risk. These findings could inform clinical treatment for children with birth defects and may elucidate mechanisms that lead to these complex outcomes.
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Affiliation(s)
- Philip J Lupo
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Houston
| | - Jeremy M Schraw
- Department of Medicine, Baylor College of Medicine, Houston, Texas
| | | | - Wendy N Nembhard
- Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock.,Arkansas Children's Research Institute, Little Rock
| | - Peter H Langlois
- Birth Defects Epidemiology and Surveillance Branch,Texas Department of State Health Services, Austin
| | - Mark A Canfield
- Birth Defects Epidemiology and Surveillance Branch,Texas Department of State Health Services, Austin
| | - Glenn Copeland
- Division for Vital Records and Health Statistics, Michigan Department of Health and Human Services, Lansing, Michigan
| | - Robert E Meyer
- Department of Maternal and Child Health, University of North Carolina at Chapel Hill
| | - Austin L Brown
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Houston
| | - Tiffany M Chambers
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Houston
| | - Pagna Sok
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Houston
| | - Heather E Danysh
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Houston
| | - Susan E Carozza
- School of Biological and Population Health Sciences, Oregon State University, Corvallis
| | - Saumya D Sisoudiya
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | | | - Amanda E Janitz
- Department of Biostatistics and Epidemiology, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City
| | - Matthew E Oster
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Angela E Scheuerle
- Birth Defects Epidemiology and Surveillance Branch,Texas Department of State Health Services, Austin.,Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas
| | - Joshua D Schiffman
- Division of Hematology and Oncology, Department of Pediatrics, Huntsman Cancer Institute, University of Utah, Salt Lake City
| | - Chunqiao Luo
- Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock
| | - Amir Mian
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock
| | - Beth A Mueller
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Chad D Huff
- Department of Epidemiology, MD Anderson Cancer Center, Houston, Texas
| | - Sonja A Rasmussen
- Department of Pediatrics, University of Florida College of Medicine Gainsville.,Department of Epidemiology, University of Florida College of Medicine and College of Public Health and Health Professions, Gainesville
| | - Michael E Scheurer
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Houston
| | - Sharon E Plon
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Houston.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
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28
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Forestieri NE, Desrosiers TA, Freedman SF, Aylsworth AS, Voltzke K, Olshan AF, Meyer RE. Risk factors for primary congenital glaucoma in the National Birth Defects Prevention Study. Am J Med Genet A 2019; 179:1846-1856. [DOI: 10.1002/ajmg.a.61296] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 02/05/2019] [Accepted: 07/03/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Nina E. Forestieri
- North Carolina Birth Defects Monitoring Program, State Center for Health Statistics Raleigh North Carolina
| | - Tania A. Desrosiers
- Department of EpidemiologyGillings School of Global Public Health, University of North Carolina at Chapel Hill Chapel Hill North Carolina
| | - Sharon F. Freedman
- Department of Ophthalmology and PediatricsDuke University Medical Center Durham North Carolina
| | - Arthur S. Aylsworth
- Department of Pediatrics and GeneticsUniversity of North Carolina at Chapel Hill Chapel Hill North Carolina
| | - Kristin Voltzke
- Department of EpidemiologyGillings School of Global Public Health, University of North Carolina at Chapel Hill Chapel Hill North Carolina
| | - Andrew F. Olshan
- Department of EpidemiologyGillings School of Global Public Health, University of North Carolina at Chapel Hill Chapel Hill North Carolina
| | - Robert E. Meyer
- North Carolina Birth Defects Monitoring Program, State Center for Health Statistics Raleigh North Carolina
- Department of Maternal and Child HealthGillings School of Global Public Health, University of North Carolina at Chapel Hill Chapel Hill North Carolina
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29
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Ryan MA, Olshan AF, Canfield MA, Hoyt AT, Scheuerle AE, Carmichael SL, Shaw GM, Werler MM, Fisher SC, Desrosiers TA. Sociodemographic, health behavioral, and clinical risk factors for anotia/microtia in a population-based case-control study. Int J Pediatr Otorhinolaryngol 2019; 122:18-26. [PMID: 30928866 PMCID: PMC6536360 DOI: 10.1016/j.ijporl.2019.03.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Anotia and microtia are congenital malformations of the external ear with few known risk factors. We conducted a comprehensive assessment of a wide range of potential risk factors using data from the National Birth Defects Prevention Study (NBDPS), a population-based case-control study of non-chromosomal structural birth defects in the United States. METHODS Mothers of 699 infants with anotia or microtia (cases) and 11,797 non-malformed infants (controls) delivered between 1997 and 2011 were interviewed to obtain information about sociodemographic, health behavioral, and clinical characteristics. Adjusted odds ratios (aORs) and 95% confidence intervals (CIs) were estimated with logistic regression. RESULTS Infants with anotia/microtia were more likely to be male (aOR, 1.29; 95% CI, 1.10-1.50) and from a multifetal pregnancy (aOR, 1.68; 95% CI, 1.16-2.42). Cases were also more likely to have parents of Hispanic ethnicity (maternal aOR, 3.19; 95% CI, 2.61-3.91; paternal aOR, 2.11; 95% CI, 1.54-2.88), and parents born outside the United States (maternal aOR, 1.29; 95% CI, 1.06-1.57; paternal aOR, 1.92; 95% CI, 1.53-2.41). Maternal health conditions associated with increased odds of anotia/microtia included obesity (aOR, 1.31; 95% CI, 1.06-1.61) and pre-pregnancy diabetes (type I aOR, 9.89; 95% CI, 5.46-17.92; type II aOR, 4.70; 95% CI, 2.56-8.63). Reduced odds were observed for black mothers (aOR, 0.57; 95% CI, 0.38-0.85) and mothers reporting daily intake of folic acid-containing supplements (aOR, 0.59; 95% CI, 0.46-0.76). CONCLUSION We identified several risk factors for anotia/microtia, some which have been previously reported (e.g., diabetes) and others which we investigate for perhaps the first time (e.g., binge drinking) that warrant further investigation. Our findings point to some potentially modifiable risk factors and provide further leads toward understanding the etiology of anotia/microtia.
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Affiliation(s)
- Marisa A. Ryan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC,Division of Head and Neck Surgery & Communication Sciences, Department of Surgery, Duke University Hospital, Durham, NC,Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University, Baltimore, MD (current affliliation)
| | - Andrew F. Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Mark A. Canfield
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX
| | - Adrienne T. Hoyt
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX
| | - Angela E. Scheuerle
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX,Department of Pediatrics, Division of Genetics and Metabolism, University of Texas Southwestern Medical Center, Dallas, TX
| | - Suzan L. Carmichael
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Gary M. Shaw
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Martha M. Werler
- Department of Epidemiology, Boston University School of Public Health, Boston, MA
| | - Sarah C. Fisher
- Congenital Malformations Registry, New York State Department of Health, Albany, NY
| | - Tania A. Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
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30
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Austin AE, Desrosiers TA, Shanahan ME. Directed acyclic graphs: An under-utilized tool for child maltreatment research. Child Abuse Negl 2019; 91:78-87. [PMID: 30836237 PMCID: PMC6452862 DOI: 10.1016/j.chiabu.2019.02.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 01/08/2019] [Accepted: 02/21/2019] [Indexed: 05/14/2023]
Abstract
BACKGROUND Child maltreatment research involves modeling complex relationships between multiple interrelated variables. Directed acyclic graphs (DAGs) are one tool child maltreatment researchers can use to think through relationships among the variables operative in a causal research question and to make decisions about the optimal analytic strategy to minimize potential sources of bias. OBJECTIVE The purpose of this paper is to highlight the utility of DAGs for child maltreatment research and to provide a practical resource to facilitate and support the use of DAGs in child maltreatment research. RESULTS We first provide an overview of DAG terminology and concepts relevant to child maltreatment research. We describe DAG construction and define specific types of variables within the context of DAGs including confounders, mediators, and colliders, detailing the manner in which each type of variable can be used to inform study design and analysis. We then describe four specific scenarios in which DAGs may yield valuable insights for child maltreatment research: (1) identifying covariates to include in multivariable models to adjust for confounding; (2) identifying unintended effects of adjusting for a mediator; (3) identifying unintended effects of adjusting for multiple types of maltreatment; and (4) identifying potential selection bias in data specific to children involved in the child welfare system. CONCLUSIONS Overall, DAGs have the potential to help strengthen and advance the child maltreatment research and practice agenda by increasing transparency about assumptions, illuminating potential sources of bias, and enhancing the interpretability of results for translation to evidence-based practice.
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Affiliation(s)
- Anna E Austin
- Department of Maternal and Child Health, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC, 27599-7445, United States; Injury Prevention Research Center, University of North Carolina at Chapel Hill, 137 East Franklin Street, Suite 500, Chapel Hill, NC, 27599-7505, United States.
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC, 27599-7445, United States
| | - Meghan E Shanahan
- Department of Maternal and Child Health, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC, 27599-7445, United States; Injury Prevention Research Center, University of North Carolina at Chapel Hill, 137 East Franklin Street, Suite 500, Chapel Hill, NC, 27599-7505, United States
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Chawla D, Yang YC, Desrosiers TA, Westreich DJ, Olshan AF, Daniels JL. Past-month cannabis use among U.S. individuals from 2002-2015: An age-period-cohort analysis. Drug Alcohol Depend 2018; 193:177-182. [PMID: 30384326 PMCID: PMC6542262 DOI: 10.1016/j.drugalcdep.2018.05.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 05/22/2018] [Accepted: 05/26/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Cannabis is the most commonly used illicit drug among U.S. adolescents and adults, but little is known about factors that drive trends in cannabis use prevalence. To better understand drivers of these trends, we aimed to estimate age, period, and cohort effects on past-month cannabis use among U.S. individuals age 12 and older from 2002 to 2015. METHODS We conducted an age-period-cohort analysis on past-month cannabis use among participants ages 12 and older using the National Survey on Drug Use and Health (NSDUH), an annual cross-sectional nationally-representative survey of drug use. Additionally, we examined how age, period, and cohort effects differed across gender. Participants (n = 779,799) self-reported cannabis patterns using a computer-assisted telephone interview (CATI). RESULTS Past-month cannabis use in this population increased from 6.0% in 2002 to 8.1% in 2015. Distinct age, period, and cohort effects were observed. Compared to participants ages 12-13, participants ages 18-21 (PR: 16.8, 95% CI: 15.6, 18.1) and 22-25 (PR: 13.2, 95% CI: 12.2, 14.4) had dramatically higher prevalence of past-month cannabis use. Compared to participants in 2002, participants in 2014 (PR: 1.2, 95% CI: 1.1, 1.4) and 2014 (PR: 1.2, 95% CI: 1.1, 1.4) had slightly higher prevalence of past-month cannabis use. Compared to the 1940s birth cohort, the 1950s birth cohort (PR: 1.8, 95% CI: 1.5, 2.2) had a higher prevalence of past-month cannabis use. CONCLUSIONS Past-month cannabis use is prevalent and increasing among U.S. adults. Distinct age, period, and cohort effects are at play, though age effects are strongest.
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Affiliation(s)
- Devika Chawla
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Drive, 2101 McGavran-Greenberg Hall, CB #7435, Chapel Hill, NC 27599, USA.
| | - Yang Claire Yang
- University of North Carolina at Chapel Hill, Department of Sociology, Lineberger Cancer Center, and Carolina Population Center
| | - Tania A. Desrosiers
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of Epidemiology
| | - Daniel J. Westreich
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of Epidemiology
| | - Andrew F. Olshan
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of Epidemiology
| | - Julie L. Daniels
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of Epidemiology
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Schraw JM, Desrosiers TA, Nembhard WN, Copeland G, Meyer RE, Brown AL, Chambers TM, Danysh HE, Sisoudiya S, Luo C, Mian A, Scheurer ME, Plon SE, Lupo PJ. Abstract LB-161: A population-based assessment of cancer risk among children with non-chromosomal birth defects in 10 million live births. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-lb-161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: While cancer risk is increased among children with chromosomal birth defects, less is known about associations between specific non-chromosomal structural birth defects and specific childhood cancers. To investigate these, we established a population-based retrospective cohort of >10 million children by pooling statewide registry data from four U.S. states (Texas, Michigan, North Carolina, and Arkansas) for the period 1992-2013.
Methods: Individual level data from birth certificates, birth defects registries, and cancer registries were linked in each state; demographic and diagnostic variables were harmonized; and the data were pooled for the overall analysis. We used Cox proportional hazards models to evaluate associations between 60 birth defects and 31 childhood cancers when there were five or more comorbid cases. A hazard ratio (HR) and 95% confidence interval (CI) was calculated for each birth defect-childhood cancer (BD-CC) pairwise combination, adjusted for maternal age, infant sex, and state. The false discovery rate (FDR) was computed via the Benjamini-Hochberg procedure to account for multiple comparisons.
Results: We identified 517,548 children with non-chromosomal structural birth defects and 14,774 children with cancer. The risk of any cancer was increased among children with any non-chromosomal structural defect compared to children without any birth defect (HR=2.6, 95% CI 2.4-2.7). Of 2,511 potential BD-CC combinations, we tested 606 where there were ≥5 comorbid cases and identified 496 BD-CC associations with significantly elevated HRs at a 5% FDR. No significant inverse associations were identified for any BD-CC combination. Notably, hepatoblastoma, astrocytoma, ependymoma, and extracranial germ cell tumors were each strongly associated with several birth defects. For example, the risk of hepatoblastoma was increased among children with atrial septal defects (HR=12.5, 95% CI 7.9-19.7) and craniosynostosis (HR=15.4, 95% CI 7.6-31.3). Astrocytoma and ependymoma were associated with central nervous system (CNS) defects (HR=6.7, 95% CI 4.6-9.8 and HR=7.4, 95%CI 3.5-15.7, respectively). Elevated risk of extracranial germ cell tumors was observed among children with CNS defects (HR=22.5, 95% CI 10.9-46.4) and obstructive genitourinary defects (HR=32.4, 95% CI 16.2-64.6).
Conclusions: By pooling registry data across four U.S. states, we were able to evaluate specific BD-CC patterns and report several novel associations. Our findings suggest that children with non-chromosomal birth defects have a significantly elevated risk of several childhood cancers. These findings may inform research into the etiologies of childhood cancer, as well as new cancer surveillance protocols for children with non-chromosomal birth defects. This work was supported by the Cancer Prevention Research Institute of Texas.
Citation Format: Jeremy M. Schraw, Tania A. Desrosiers, Wendy N. Nembhard, Glenn Copeland, Robert E. Meyer, Austin L. Brown, Tiffany M. Chambers, Heather E. Danysh, Saumya Sisoudiya, Chunqiao Luo, Amir Mian, Michael E. Scheurer, Sharon E. Plon, Philip J. Lupo. A population-based assessment of cancer risk among children with non-chromosomal birth defects in 10 million live births [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr LB-161.
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Affiliation(s)
| | | | | | | | - Robert E. Meyer
- 5North Carolina Division of Public Health Birth Defects Monitoring Program, Raleigh, NC
| | | | | | | | | | - Chunqiao Luo
- 3University of Arkansas for Medical Sciences, Little Rock, AR
| | - Amir Mian
- 3University of Arkansas for Medical Sciences, Little Rock, AR
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Desrosiers TA, Siega-Riz AM, Mosley BS, Meyer RE. Low carbohydrate diets may increase risk of neural tube defects. Birth Defects Res 2018; 110:901-909. [PMID: 29368448 DOI: 10.1002/bdr2.1198] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/13/2017] [Accepted: 12/29/2017] [Indexed: 11/06/2022]
Abstract
BACKGROUND Folic acid fortification significantly reduced the prevalence of neural tube defects (NTDs) in the United States. The popularity of "low carb" diets raises concern that women who intentionally avoid carbohydrates, thereby consuming fewer fortified foods, may not have adequate dietary intake of folic acid. METHODS To assess the association between carbohydrate intake and NTDs, we analyzed data from the National Birth Defects Prevention Study from 1,740 mothers of infants, stillbirths, and terminations with anencephaly or spina bifida (cases), and 9,545 mothers of live born infants without a birth defect (controls) conceived between 1998 and 2011. Carbohydrate and folic acid intake before conception were estimated from food frequency questionnaire responses. Restricted carbohydrate intake was defined as ≤5th percentile among controls. Odds ratios were estimated with logistic regression and adjusted for maternal race/ethnicity, education, alcohol use, folic acid supplement use, study center, and caloric intake. RESULTS Mean dietary intake of folic acid among women with restricted carbohydrate intake was less than half that of other women (p < .01), and women with restricted carbohydrate intake were slightly more likely to have an infant with an NTD (AOR = 1.30, 95% CI: 1.02, 1.67). CONCLUSIONS This is the first study to examine the association between carbohydrate intake and NTDs among pregnancies conceived postfortification. We found that women with restricted carbohydrate intake were 30% more likely to have an infant with anencephaly or spina bifida. However, more research is needed to understand the pathways by which restricted carbohydrate intake might increase the risk of NTDs.
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Affiliation(s)
- Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Anna Maria Siega-Riz
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.,Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Bridget S Mosley
- Adult and Child Consortium for Health Outcomes Research and Delivery Science, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Robert E Meyer
- North Carolina Birth Defects Monitoring Program, State Center for Health Statistics, North Carolina Division of Public Health, Raleigh, North Carolina.,Department of Maternal and Child Health, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
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Pace ND, Desrosiers TA, Carmichael SL, Shaw GM, Olshan AF, Siega-Riz AM. Antioxidant Consumption is Associated with Decreased Odds of Congenital Limb Deficiencies. Paediatr Perinat Epidemiol 2018; 32:90-99. [PMID: 28869773 PMCID: PMC5771883 DOI: 10.1111/ppe.12403] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Approximately 1 in 2000 infants is born with a limb deficiency in the US. Research has shown that women's periconceptional diet and use of vitamin supplements can affect risk of birth defects. We investigated whether maternal consumption of nutritional antioxidants was associated with occurrence of transverse limb deficiency (TLD) and longitudinal limb deficiencies (LLD). METHODS We analysed case-control data from mothers and their singleton infants with TLD (n = 566), LLD (n = 339), or no malformation (controls; n = 9384) in the National Birth Defects Prevention Study (1997-2009). Using a modified food frequency, we estimated usual pre-pregnancy antioxidant consumption by total fruit and vegetable consumption (in grams) grouped into tertiles, and cumulative antioxidant score (ranging from 1 to 10) based on consumption of three antioxidants: beta-carotene, lycopene, and lutein. We estimated odds ratios (OR) adjusted for maternal age, race/ethnicity, education, smoking, alcohol use, body mass index, and total energy. RESULTS Compared to women in the lowest tertile of fruit and vegetable consumption, women in the highest tertile were less likely to have infants with TLD (OR 0.74, 95% CI 0.57, 0.96) or LLD (OR 0.82, 95% CI 0.59, 1.13). Compared to the lowest antioxidant consumption score of 1, those with the highest score of 10 had ORs of 0.68 (95% CI 0.48, 0.95) for TLD and 0.77 (95% CI 0.50, 1.17) for LLD. CONCLUSIONS Dietary intake of antioxidants was associated with reduced odds of limb deficiencies. These findings add further evidence for women's periconceptional diet reducing occurrence of some birth defects.
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Affiliation(s)
- Nelson D. Pace
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill
| | - Tania A. Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill
| | - Suzan L. Carmichael
- Department of Pediatrics, Division of Neonatology and Developmental Medicine, Stanford University School of Medicine
| | - Gary M. Shaw
- Department of Pediatrics, Division of Neonatology and Developmental Medicine, Stanford University School of Medicine
| | - Andrew F. Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill
| | - Anna Maria Siega-Riz
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill,Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill,Department of Public Health Sciences, University of Virginia School of Medicine
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Rocheleau CM, Bertke SJ, Lawson CC, Romitti PA, Desrosiers TA, Agopian A, Bell E, Gilboa SM. Factors associated with employment status before and during pregnancy: Implications for studies of pregnancy outcomes. Am J Ind Med 2017; 60:329-341. [PMID: 28299820 DOI: 10.1002/ajim.22700] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2017] [Indexed: 11/06/2022]
Abstract
BACKGROUND Potential confounding or effect modification by employment status is frequently overlooked in pregnancy outcome studies. METHODS To characterize how employed and non-employed women differ, we compared demographics, behaviors, and reproductive histories by maternal employment status for 8,343 mothers of control (non-malformed) infants in the National Birth Defects Prevention Study (1997-2007) and developed a multivariable model for employment status anytime during pregnancy and the 3 months before conception. RESULTS Sixteen factors were independently associated with employment before or during pregnancy, including: maternal age, pre-pregnancy body mass index, pregnancy intention, periconceptional/first trimester smoking and alcohol consumption, and household income. CONCLUSIONS Employment status was significantly associated with many common risk factors for adverse pregnancy outcomes. Pregnancy outcome studies should consider adjustment or stratification by employment status. In studies of occupational exposures, these differences may cause uncontrollable confounding if non-employed women are treated as unexposed instead of excluded from analysis. Am. J. Ind. Med. 60:329-341, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Carissa M. Rocheleau
- Division of Surveillance, Hazard Evaluations, and Field Studies, National Institute for Occupational Safety and Health; Centers for Disease Control and Prevention; Cincinnati Ohio
| | - Stephen J. Bertke
- Division of Surveillance, Hazard Evaluations, and Field Studies, National Institute for Occupational Safety and Health; Centers for Disease Control and Prevention; Cincinnati Ohio
| | - Christina C. Lawson
- Division of Surveillance, Hazard Evaluations, and Field Studies, National Institute for Occupational Safety and Health; Centers for Disease Control and Prevention; Cincinnati Ohio
| | - Paul A. Romitti
- Department of Epidemiology, College of Public Health; The University of Iowa; Iowa City Iowa
| | - Tania A. Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health; University of North Carolina; Chapel Hill North Carolina
| | - A.J. Agopian
- Division of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health; University of Texas at Houston; Houston Texas
| | - Erin Bell
- Department of Environmental Health Sciences, School of Public Health; The University at Albany-SUNY; Rensselaer North Carolina
| | - Suzanne M. Gilboa
- Division of Congenital and Developmental Disorders, National Center on Birth Defects and Developmental Disabilities; Centers for Disease Control and Prevention; Atlanta Georgia
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Desrosiers TA, Lawson CC, Meyer RE, Stewart PA, Waters MA, Correa A, Olshan AF. Assessed occupational exposure to chlorinated, aromatic and Stoddard solvents during pregnancy and risk of fetal growth restriction. Occup Environ Med 2015; 72:587-93. [PMID: 26076683 DOI: 10.1136/oemed-2015-102835] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 05/29/2015] [Indexed: 01/16/2023]
Abstract
OBJECTIVES Previous experimental and epidemiological research suggests that maternal exposure to some organic solvents during pregnancy may increase the risk of fetal growth restriction (FGR). We evaluated the association between expert-assessed occupational solvent exposure and risk of small for gestational age (SGA) infants in a population-based sample of women in the National Birth Defects Prevention Study. METHODS We analysed data from 2886 mothers and their infants born between 1997 and 2002. Job histories were self-reported. Probability of exposure to six chlorinated, three aromatic and one petroleum solvent was assessed by industrial hygienists. SGA was defined as birthweight<10th centile of birthweight-by-gestational age in a national reference. Logistic regression was used to estimate ORs and 95% CIs to assess the association between SGA and exposure to any solvent(s) or specific solvent classes, adjusting for maternal age and education. RESULTS Approximately 8% of infants were SGA. Exposure prevalence to any solvent was 10% and 8% among mothers of SGA and non-SGA infants, respectively. Among women with ≥ 50% probability of exposure, we observed elevated but imprecise associations between SGA and exposure to any solvent(s) (1.71; 0.86 to 3.40), chlorinated solvents (1.70; 0.69 to 4.01) and aromatic solvents (1.87; 0.78 to 4.50). CONCLUSIONS This is the first population-based study in the USA to investigate the potential association between FGR and assessed maternal occupational exposure to distinct classes of organic solvents during pregnancy. The potential associations observed between SGA and exposure to chlorinated and aromatic solvents are based on small numbers and merit further investigation.
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Affiliation(s)
- Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Christina C Lawson
- National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA
| | - Robert E Meyer
- North Carolina Division of Public Health, Birth Defects Monitoring Program, State Centre for Health Statistics, Raleigh, North Carolina, USA
| | | | - Martha A Waters
- National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA
| | - Adolfo Correa
- Departments of Medicine and Pediatrics, University of Mississippi Medical Centre, Jackson, Mississippi, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
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Rocheleau CM, Bertke SJ, Lawson CC, Romitti PA, Sanderson WT, Malik S, Lupo PJ, Desrosiers TA, Bell E, Druschel C, Correa A, Reefhuis J. Maternal occupational pesticide exposure and risk of congenital heart defects in the National Birth Defects Prevention Study. ACTA ACUST UNITED AC 2015; 103:823-33. [PMID: 26033688 DOI: 10.1002/bdra.23351] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 12/09/2014] [Accepted: 12/11/2014] [Indexed: 11/06/2022]
Abstract
BACKGROUND Congenital heart defects (CHDs) are common birth defects, affecting approximately 1% of live births. Pesticide exposure has been suggested as an etiologic factor for CHDs, but previous results were inconsistent. METHODS We examined maternal occupational exposure to fungicides, insecticides, and herbicides for 3328 infants with CHDs and 2988 unaffected control infants of employed mothers using data for 1997 through 2002 births from the National Birth Defects Prevention Study, a population-based multisite case-control study. Potential pesticide exposure from 1 month before conception through the first trimester of pregnancy was assigned by an expert-guided task-exposure matrix and job history details self-reported by mothers. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using multivariable logistic regression. RESULTS Maternal occupational exposure to pesticides was not associated with CHDs overall. In examining specific CHD subtypes compared with controls, some novel associations were observed with higher estimated pesticide exposure: insecticides only and secundum atrial septal defect (OR = 1.8; 95% CI, 1.3-2.7, 40 exposed cases); both insecticides and herbicides and hypoplastic left heart syndrome (OR = 5.1; 95% CI, 1.7-15.3, 4 exposed cases), as well as pulmonary valve stenosis (OR = 3.6; 95% CI, 1.3-10.1, 5 exposed cases); and insecticides, herbicides, and fungicides and tetralogy of Fallot (TOF) (OR = 2.2; 95% CI, 1.2-4.0, 13 exposed cases). CONCLUSION Broad pesticide exposure categories were not associated with CHDs overall, but examining specific CHD subtypes revealed some increased odds ratios. These results highlight the importance of examining specific CHDs separately. Because of multiple comparisons, additional work is needed to verify these associations.
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Affiliation(s)
- Carissa M Rocheleau
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - Stephen J Bertke
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - Christina C Lawson
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - Paul A Romitti
- Department of Epidemiology, College of Public Health, The University of Iowa, Iowa City, Iowa
| | - Wayne T Sanderson
- Department of Epidemiology, University of Kentucky, Lexington, Kentucky
| | - Sadia Malik
- University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Philip J Lupo
- Department of Pediatrics, Section of Hematology and Oncology, Baylor College of Medicine, Houston, Texas
| | - Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Erin Bell
- Department of Epidemiology and Biostatistics, School of Public Health, State University of New York at Albany, Rensselaer, New York
| | - Charlotte Druschel
- Department of Epidemiology and Biostatistics, School of Public Health, State University of New York at Albany, Rensselaer, New York.,Center for Environmental Health, New York State Department of Health, Albany, New York
| | - Adolfo Correa
- Departments of Medicine and Pediatrics, University of Mississippi Medical Center, Jackson, Mississippi
| | - Jennita Reefhuis
- Centers for Disease Control and Prevention, National Center on Birth Defects and Developmental Disabilities, Atlanta, Georgia
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Sanders AP, Desrosiers TA, Warren JL, Herring AH, Enright D, Olshan AF, Meyer RE, Fry RC. Association between arsenic, cadmium, manganese, and lead levels in private wells and birth defects prevalence in North Carolina: a semi-ecologic study. BMC Public Health 2014; 14:955. [PMID: 25224535 PMCID: PMC4190372 DOI: 10.1186/1471-2458-14-955] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 09/09/2014] [Indexed: 11/21/2022] Open
Abstract
Background Toxic metals including arsenic, cadmium, manganese, and lead are known human developmental toxicants that are able to cross the placental barrier from mother to fetus. In this population-based study, we assess the association between metal concentrations in private well water and birth defect prevalence in North Carolina. Methods A semi-ecologic study was conducted including 20,151 infants born between 2003 and 2008 with selected birth defects (cases) identified by the North Carolina Birth Defects Monitoring Program, and 668,381 non-malformed infants (controls). Maternal residences at delivery and over 10,000 well locations measured for metals by the North Carolina Division of Public Health were geocoded. The average level of each metal was calculated among wells sampled within North Carolina census tracts. Individual exposure was assigned as the average metal level of the census tract that contained the geocoded maternal residence. Prevalence ratios (PR) with 95% confidence intervals (CI) were calculated to estimate the association between the prevalence of birth defects in the highest category (≥90th percentile) of average census tract metal levels and compared to the lowest category (≤50th percentile). Results Statewide, private well metal levels exceeded the EPA Maximum Contaminant Level (MCL) or secondary MCL for arsenic, cadmium, manganese, and lead in 2.4, 0.1, 20.5, and 3.1 percent of wells tested. Elevated manganese levels were statistically significantly associated with a higher prevalence of conotruncal heart defects (PR: 1.6 95% CI: 1.1-2.5). Conclusions These findings suggest an ecologic association between higher manganese concentrations in drinking water and the prevalence of conotruncal heart defects. Electronic supplementary material The online version of this article (doi:10.1186/1471-2458-14-955) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | | | - Rebecca C Fry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
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Langlois PH, Hoyt AT, Desrosiers TA, Lupo PJ, Lawson CC, Waters MA, Rocheleau CM, Shaw GM, Romitti PA, Gilboa SM, Malik S. Maternal occupational exposure to polycyclic aromatic hydrocarbons and small for gestational age offspring. Occup Environ Med 2014; 71:529-35. [PMID: 24893704 DOI: 10.1136/oemed-2013-101833] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVES While some of the highest maternal exposures to polycyclic aromatic hydrocarbons (PAHs) occur in the workplace, there is only one previous study of occupational PAH exposure and adverse pregnancy outcomes. We sought to extend this literature using interview data combined with detailed exposure assessment. METHODS Data for 1997-2002 were analysed from mothers of infants without major birth defects in the National Birth Defects Prevention Study, a large population-based case-control study in the USA. Maternal telephone interviews yielded information on jobs held in the month before conception through delivery. From 6252 eligible control mothers, 2803 completed the interview, had a job, met other selection criteria, and were included in the analysis. Two industrial hygienists independently assessed occupational exposure to PAHs from the interview and reviewed results with a third to reach consensus. Small for gestational age (SGA) was the only adverse pregnancy outcome with enough exposed cases to yield meaningful results. Logistic regression estimated crude and adjusted ORs. RESULTS Of the 2803 mothers, 221 (7.9%) had infants who were SGA. Occupational PAH exposure was found for 17 (7.7%) of the mothers with SGA offspring and 102 (4.0%) of the remaining mothers. Almost half the jobs with exposure were related to food preparation and serving. After adjustment for maternal age, there was a significant association of occupational exposure with SGA (OR=2.2, 95% CI 1.3 to 3.8). CONCLUSIONS Maternal occupational exposure to PAHs was found to be associated with increased risk of SGA offspring.
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Affiliation(s)
- Peter H Langlois
- Texas Center for Birth Defects Research and Prevention, Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas, USA
| | - Adrienne T Hoyt
- Texas Center for Birth Defects Research and Prevention, Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas, USA
| | - Tania A Desrosiers
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Philip J Lupo
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Christina C Lawson
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, Ohio, USA
| | - Martha A Waters
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, Ohio, USA
| | - Carissa M Rocheleau
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, Ohio, USA
| | - Gary M Shaw
- Department of Pediatrics, Stanford University School of Medicine, Palo Alto, California, USA
| | - Paul A Romitti
- Department of Epidemiology, College of Public Health, The University of Iowa, Iowa City, Iowa, USA
| | - Suzanne M Gilboa
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Sadia Malik
- Department of Pediatrics, University of Arkansas Medical Sciences, Little Rock, Arkansas, USA
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Langlois PH, Hoyt AT, Lupo PJ, Lawson CC, Waters MA, Desrosiers TA, Shaw GM, Romitti PA, Lammer EJ. Maternal occupational exposure to polycyclic aromatic hydrocarbons and risk of oral cleft-affected pregnancies. Cleft Palate Craniofac J 2012; 50:337-46. [PMID: 23136939 DOI: 10.1597/12-104] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To evaluate whether there is an association between maternal occupational exposure to polycyclic aromatic hydrocarbons and oral clefts in offspring. This is the first human study of polycyclic aromatic hydrocarbons and clefts of which the authors are aware. DESIGN Case-control study. SETTING, PARTICIPANTS Data for 1997 to 2002 from the National Birth Defects Prevention Study, a large population-based case-control study in the United States, were analyzed. Maternal telephone interviews yielded information on jobs held in the month before through 3 months after conception. Two industrial hygienists independently assessed occupational exposure to polycyclic aromatic hydrocarbons; all jobs rated as exposed or with rating difficulty were reviewed with a third industrial hygienist to reach consensus on all exposure parameters. Logistic regression estimated crude and adjusted odds ratios with 95% confidence intervals for cleft lip with or without cleft palate and cleft palate alone. RESULTS There were 2989 controls (3.5% exposed), 805 cases of cleft lip with or without cleft palate (5.8% exposed), and 439 cases of cleft palate alone (4.6% exposed). The odds of maternal occupational exposure to polycyclic aromatic hydrocarbons (any versus none) during pregnancy was increased for cleft lip with or without cleft palate cases as compared with controls (odds ratio, 1.69; 95% confidence interval, 1.18 to 2.40); the odds ratio was 1.47 (95% confidence interval 1.02 to 2.12) when adjusted for maternal education. There was a statistically significant adjusted exposure-response relationship for cleft lip with or without cleft palate (Ptrend = .02). Odd ratios for cleft palate alone were not statistically significant. CONCLUSIONS Maternal occupational exposure to polycyclic aromatic hydrocarbons was associated with increased risk of cleft lip with or without cleft palate in offspring.
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Affiliation(s)
- Peter H Langlois
- Texas Center for Birth Defects Research and Prevention, Texas Department of State Health Services, PO Box 149347, MC 1964, Austin, TX 78714-9347, USA.
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Desrosiers TA, Lawson CC, Meyer RE, Waters MA, van Wijngaarden E, Langlois PH, Romitti PA, Correa A, Olshan AF. Re: The study of the relation between maternal occupational exposure to solvents and birth defects should include oxygenated solvents (authors’ response). Occup Environ Med 2012. [DOI: 10.1136/oemed-2012-101096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lupo PJ, Symanski E, Langlois PH, Lawson CC, Malik S, Gilboa SM, Lee LJ, Agopian AJ, Desrosiers TA, Waters MA, Romitti PA, Correa A, Shaw GM, Mitchell LE. Maternal occupational exposure to polycyclic aromatic hydrocarbons and congenital heart defects among offspring in the national birth defects prevention study. ACTA ACUST UNITED AC 2012; 94:875-81. [PMID: 22945317 DOI: 10.1002/bdra.23071] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 07/13/2012] [Accepted: 07/16/2012] [Indexed: 12/16/2022]
Abstract
BACKGROUND There is evidence in experimental model systems that exposure to polycyclic aromatic hydrocarbons (PAHs) results in congenital heart defects (CHDs); however, to our knowledge, this relationship has not been examined in humans. Therefore, we conducted a case-control study assessing the association between estimated maternal occupational exposure to PAHs and CHDs in offspring. METHODS Data on CHD cases and control infants were obtained from the National Birth Defects Prevention Study for the period of 1997 to 2002. Exposure to PAHs was assigned by industrial hygienist consensus, based on self-reported maternal occupational histories from 1 month before conception through the third month of pregnancy. Logistic regression was used to evaluate the association between maternal occupational PAH exposure and specific CHD phenotypic subtypes among offspring. RESULTS The prevalence of occupational PAH exposure was 4.0% in CHD case mothers (76/1907) and 3.6% in control mothers (104/2853). After adjusting for maternal age, race or ethnicity, education, smoking, folic acid supplementation, and study center, exposure was not associated with conotruncal defects (adjusted odds ratio [AOR], 0.98; 95% confidence interval [CI], 0.58-1.67), septal defects (AOR, 1.28; 95% CI, 0.86-1.90), or with any isolated CHD subtype. CONCLUSIONS Our findings do not support an association between potential maternal occupational exposure to PAHs and various CHDs in a large, population-based study. For CHD phenotypic subtypes in which modest nonsignificant associations were observed, future investigations could be improved by studying populations with a higher prevalence of PAH exposure and by incorporating information on maternal and fetal genotypes related to PAH metabolism. Birth Defects Research (Part A), 2012.
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Affiliation(s)
- Philip J Lupo
- Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX 77030, USA.
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Gilboa SM, Desrosiers TA, Lawson C, Lupo PJ, Riehle-Colarusso TJ, Stewart PA, van Wijngaarden E, Waters MA, Correa A. Association between maternal occupational exposure to organic solvents and congenital heart defects, National Birth Defects Prevention Study, 1997-2002. Occup Environ Med 2012; 69:628-35. [PMID: 22811060 DOI: 10.1136/oemed-2011-100536] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To examine the relation between congenital heart defects (CHDs) in offspring and estimated maternal occupational exposure to chlorinated solvents, aromatic solvents and Stoddard solvent during the period from 1 month before conception through the first trimester. METHODS The study population included mothers of infants with simple isolated CHDs and mothers of control infants who delivered from 1997 through 2002 and participated in the National Birth Defects Prevention Study. Two methods to assess occupational solvent exposure were employed: an expert consensus-based approach and a literature-based approach. Multiple logistic regression was used to calculate adjusted ORs and 95% CIs for the association between solvent classes and CHDs. RESULTS 2951 control mothers and 2047 CHD case mothers were included. Using the consensus-based approach, associations were observed for exposure to any solvent and any chlorinated solvent with perimembranous ventricular septal defects (OR 1.6, 95% CI 1.0 to 2.6 and OR 1.7, 95% CI 1.0 to 2.8, respectively). Using the literature-based approach, associations were observed for: any solvent exposure with aortic stenosis (OR 2.1, 95% CI 1.1 to 4.1) and Stoddard solvent exposure with d-transposition of the great arteries (OR 2.0, 95% CI 1.0 to 4.2), right ventricular outflow tract obstruction defects (OR 1.9, 95% CI 1.1 to 3.3) and pulmonary valve stenosis (OR 2.1, 95% CI 1.1 to 3.8). CONCLUSIONS The authors found evidence of associations between occupational exposure to solvents and several types of CHDs. These results should be interpreted in light of the potential for misclassification of exposure.
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Affiliation(s)
- Suzanne M Gilboa
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
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Langlois PH, Hoyt AT, Lupo PJ, Lawson CC, Waters MA, Desrosiers TA, Shaw GM, Romitti PA, Lammer EJ. Maternal occupational exposure to polycyclic aromatic hydrocarbons and risk of neural tube defect-affected pregnancies. ACTA ACUST UNITED AC 2012; 94:693-700. [PMID: 22807044 DOI: 10.1002/bdra.23045] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 05/15/2012] [Accepted: 05/18/2012] [Indexed: 11/08/2022]
Abstract
BACKGROUND This study evaluated whether there is an association between maternal occupational exposure to polycyclic aromatic hydrocarbons (PAHs) and neural tube defects (NTDs) in offspring. This is the first such study of which the authors are aware. METHODS Data were analyzed from 1997 to 2002 deliveries in the National Birth Defects Prevention Study, a large population-based case-control study in the United States. Maternal interviews yielded information on jobs held in the month before through 3 months after conception. Three industrial hygienists blinded to case or control status assessed occupational exposure to PAHs. Crude and adjusted odds ratios (ORs) with 95% confidence intervals (CIs) were estimated using unconditional logistic regression. RESULTS Of the 520 mothers of children with NTDs, 5.0% were classified as exposed to occupational PAHs, as were 3.5% of the 2989 mothers of controls. The crude OR for PAH exposure was 1.43 (95% CI, 0.92-2.22) for any NTD and 1.71 (95% CI, 1.03-2.83) for spina bifida. Adjusted ORs were smaller in magnitude and not significant. Among women who were normal weight or underweight, the crude OR for spina bifida was 3.13 (95% CI, 1.63-6.03) and adjusted OR was 2.59 (95% CI, 1.32-5.07). Based on estimated cumulative exposure, a statistically significant dose-response trend was observed for spina bifida; however, it was attenuated and no longer significant after adjustment. CONCLUSION Maternal occupational exposure to PAHs may be associated with increased risk of spina bifida in offspring among women who are normal weight or underweight. Other comparisons between PAHs and NTDs were consistent with no association.
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Affiliation(s)
- Peter H Langlois
- Texas Center for Birth Defects Research and Prevention, Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas 78714-9347, USA.
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Desrosiers TA, Herring AH, Shapira SK, Hooiveld M, Luben TJ, Herdt-Losavio ML, Lin S, Olshan AF. Paternal occupation and birth defects: findings from the National Birth Defects Prevention Study. Occup Environ Med 2012; 69:534-42. [PMID: 22782864 DOI: 10.1136/oemed-2011-100372] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Several epidemiological studies have suggested that certain paternal occupations may be associated with an increased prevalence of birth defects in offspring. Using data from the National Birth Defects Prevention Study, the authors investigated the association between paternal occupation and birth defects in a case-control study of cases comprising over 60 different types of birth defects (n=9998) and non-malformed controls (n=4066) with dates of delivery between 1997 and 2004. METHODS Using paternal occupational histories reported by mothers via telephone interview, jobs were systematically classified into 63 groups based on shared exposure profiles within occupation and industry. Data were analysed using bayesian logistic regression with a hierarchical prior for dependent shrinkage to stabilise estimation with sparse data. RESULTS Several occupations were associated with an increased prevalence of various birth defect categories, including mathematical, physical and computer scientists; artists; photographers and photo processors; food service workers; landscapers and groundskeepers; hairdressers and cosmetologists; office and administrative support workers; sawmill workers; petroleum and gas workers; chemical workers; printers; material moving equipment operators; and motor vehicle operators. CONCLUSIONS Findings from this study might be used to identify specific occupations worthy of further investigation and to generate hypotheses about chemical or physical exposures common to such occupations.
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Affiliation(s)
- Tania A Desrosiers
- North Carolina Center for Birth Defects Research and Prevention, Gillings School of Global Public Health, Department of Epidemiology, CB#7435, University of North Carolina, Chapel Hill, NC 27599, USA.
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Lupo PJ, Langlois PH, Reefhuis J, Lawson CC, Symanski E, Desrosiers TA, Khodr ZG, Agopian AJ, Waters MA, Duwe KN, Finnell RH, Mitchell LE, Moore CA, Romitti PA, Shaw GM. Maternal occupational exposure to polycyclic aromatic hydrocarbons: effects on gastroschisis among offspring in the National Birth Defects Prevention Study. Environ Health Perspect 2012; 120:910-5. [PMID: 22330681 PMCID: PMC3385431 DOI: 10.1289/ehp.1104305] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Accepted: 02/13/2012] [Indexed: 05/21/2023]
Abstract
BACKGROUND Exposure to polycyclic aromatic hydrocarbons (PAHs) occurs in many occupational settings. There is evidence in animal models that maternal exposure to PAHs during pregnancy is associated with gastroschisis in offspring; however, to our knowledge, no human studies examining this association have been conducted. OBJECTIVE Our goal was to conduct a case-control study assessing the association between estimated maternal occupational exposure to PAHs and gastroschisis in offspring. METHODS Data from gastroschisis cases and control infants were obtained from the population-based National Birth Defects Prevention Study for the period 1997-2002. Exposure to PAHs was assigned by industrial hygienist consensus, based on self-reported maternal occupational histories from 1 month before conception through the third month of pregnancy. Logistic regression was used to determine the association between estimated occupational PAH exposure and gastroschisis among children whose mothers were employed for at least 1 month during the month before conception through the third month of pregnancy. RESULTS The prevalence of estimated occupational PAH exposure was 9.0% in case mothers (27 of 299) and 3.6% in control mothers (107 of 2,993). Logistic regression analyses indicated a significant association between occupational PAHs and gastroschisis among mothers ≥ 20 years of age [odds ratio (OR) = 2.53; 95% confidence interval (CI): 1.27, 5.04] after adjusting for maternal body mass index, education, gestational diabetes, and smoking. This association was not seen in mothers < 20 years (OR = 1.14; 95% CI: 0.55, 2.33), which is notable because although young maternal age is the strongest known risk factor for gastroschisis, most cases are born to mothers ≥ 20 years. CONCLUSION Our findings indicate an association between occupational exposure to PAHs among mothers who are ≥ 20 years and gastroschisis. These results contribute to a body of evidence that PAHs may be teratogenic.
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Affiliation(s)
- Philip J Lupo
- Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, Texas 77030, USA.
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Desrosiers TA, Lawson CC, Meyer RE, Richardson DB, Daniels JL, Waters MA, van Wijngaarden E, Langlois PH, Romitti PA, Correa A, Olshan A. Maternal occupational exposure to organic solvents during early pregnancy and risks of neural tube defects and orofacial clefts. Occup Environ Med 2012; 69:493-9. [PMID: 22447643 DOI: 10.1136/oemed-2011-100245] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Though toxicological experiments demonstrate the teratogenicity of organic solvents in animal models, epidemiologic studies have reported inconsistent results. Using data from the population-based National Birth Defects Prevention Study, the authors examined the relation between maternal occupational exposure to aromatic solvents, chlorinated solvents and Stoddard solvent during early pregnancy and neural tube defects (NTDs) and orofacial clefts (OFCs). METHODS Cases of NTDs (anencephaly, spina bifida and encephalocoele) and OFCs (cleft lip ± cleft palate and cleft palate alone) delivered between 1997 and 2002 were identified by birth defect surveillance registries in eight states; non-malformed control infants were selected using birth certificates or hospital records. Maternal solvent exposure was estimated by industrial hygienist review of self-reported occupational histories in combination with a literature-derived exposure database. ORs and 95% CIs for the association between solvent class and each birth defect group and component phenotype were estimated using multivariable logistic regression, adjusting for maternal age, race/ethnicity, education, pre-pregnancy body mass index, folic acid supplement use and smoking. RESULTS The prevalence of exposure to any solvent among mothers of NTD cases (n = 511), OFC cases (n = 1163) and controls (n = 2977) was 13.1%, 9.6% and 8.2%, respectively. Exposure to chlorinated solvents was associated with increased odds of NTDs (OR = 1.96, CI 1.34 to 2.87), especially spina bifida (OR = 2.26, CI 1.44 to 3.53). No solvent class was strongly associated with OFCs in these data. CONCLUSIONS The findings suggest that maternal occupational exposure to chlorinated solvents during early pregnancy is positively associated with the prevalence of NTDs in offspring.
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Affiliation(s)
- Tania A Desrosiers
- Department of Epidemiology, Campus Box 7435, University of North Carolina, Chapel Hill, NC 27599, USA.
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Desrosiers TA, Meyer RE. Running the numbers: Utilization of dental health care services among pregnant women in North Carolina. N C Med J 2012; 73:136-139. [PMID: 22860328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Affiliation(s)
- Tania A Desrosiers
- North Carolina Center for Birth Defects Research and Prevention, Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina-Chapel Hill, 27599, USA.
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