1
|
Yadav D, Ostrea EM, Cheng CT, Kisseih E, Maddipati KR, Thomas RL. Effect of docosahexaenoic acid and olive oil supplementation on pup weight in alcohol-exposed pregnant rats. Front Pediatr 2024; 12:1334285. [PMID: 38638591 PMCID: PMC11024321 DOI: 10.3389/fped.2024.1334285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/20/2024] [Indexed: 04/20/2024] Open
Abstract
Background Low birth weight has been observed in offspring of alcoholic mothers due likely to unresolved inflammation and oxidative injury. Dietary lipids play a role in inflammation and its resolution. The primary objective was to investigate the effect of DHA and olive oil on the birth weight of pups born to alcohol-exposed dams. Methods Pregnant rats were randomized to the control or three treatment (alcohol) groups. From gestational days (GD) 8-19, the control group received daily olive oil and malto/dextrose, whereas groups 2 and 3 received olive oil and low-dose alcohol or high-dose alcohol, respectively. Group 4 received daily DHA and high-dose alcohol. The dam's blood was collected on GD 15 and 20 for cytokine analysis. Dams were sacrificed on GD 20. The mean birth weight of pups was compared by one-way ANOVA with post hoc Duncan's test. Results There was a significant increase in the pups' mean birth weight in the high-dose alcohol/DHA and high-dose alcohol/olive oil. Higher pro-inflammatory cytokines (IL-1β and IL-12p70) were noted in the alcohol-exposed dams. Conclusions DHA and olive oil supplementation in alcohol-exposed pregnant rats significantly increased their pups' birth weight despite having high pro-inflammatory cytokines. The mechanism of this effect remains to be determined.
Collapse
Affiliation(s)
- Deepak Yadav
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, United States
| | - Enrique M. Ostrea
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, United States
| | - Charlie T. Cheng
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, United States
| | - Esther Kisseih
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, United States
| | - Krishna R. Maddipati
- Bioactive Lipids Research Program, Wayne State University School of Medicine, Detroit, MI, United States
| | - Ronald L. Thomas
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, United States
| |
Collapse
|
2
|
Bakhireva LN, Ma X, Wiesel A, Wohrer FE, DiDomenico J, Jacobson SW, Roberts MH. Dose-response effect of prenatal alcohol exposure on perinatal outcomes. ALCOHOL, CLINICAL & EXPERIMENTAL RESEARCH 2024; 48:703-714. [PMID: 38554141 DOI: 10.1111/acer.15284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/12/2024] [Accepted: 02/05/2024] [Indexed: 04/01/2024]
Abstract
BACKGROUND A better understanding of the effects of lower levels of prenatal alcohol exposure (PAE), as a common exposure, is needed. The goal of this study was to examine the effects of mild-moderate PAE and episodic binge drinking on perinatal outcomes. METHODS The data were obtained from three prospective cohorts with a combined sample of 281 participants: 125 with PAE and 156 without PAE. Alcohol-related measures included the Alcohol Use Disorders Identification Test, timeline follow-back questionnaires (covering the periconceptional period, mid-gestation, and late gestation), and biomarkers. Absolute alcohol per day (AAD) and per drinking day (AADD), number of binge episodes, and maximum number of drinks in a 24-h period were estimated. Perinatal outcomes included gestational age and anthropometric measures. Data were analyzed using correlation and multivariable regression analysis. RESULTS Among women with PAE, average alcohol consumption across the periconceptional period and pregnancy was 0.37 oz ± 0.74 AA/day (~5 drinks/week). After adjusting for tobacco co-exposure and sociodemographic characteristics, significant associations between all alcohol measures and gestational age at delivery were observed, including cumulative measures of AAD (β = -0.58; 95% CI: -0.98; -0.17) and AADD (β = -0.58; 95% CI: -0.90; -0.26) during pregnancy and the periconceptional period. A significant association between the maximum number of drinks in a 24-h period and birth length percentile (β = -0.70; 95% CI: -1.36; -0.04) was observed in the final model. PAE was associated with lower birth weight percentile in univariate analyses only. CONCLUSIONS Results of this study demonstrate a negative association between mild-moderate PAE and episodic binge drinking with gestational age at delivery and birth length percentile after controlling for other factors. Robust negative effects of PAE, including in the periconceptional period before pregnancy recognition, on duration of gestation highlight the need for primary prevention efforts aimed at PAE in persons of reproductive age.
Collapse
Affiliation(s)
- Ludmila N Bakhireva
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Xingya Ma
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Alexandria Wiesel
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Fiona E Wohrer
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Jared DiDomenico
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Sandra W Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Melissa H Roberts
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| |
Collapse
|
3
|
Schmidt RA, Wey TW, Harding KD, Fortier I, Atkinson S, Tough S, Letourneau N, Knight JA, Fraser WD, Bocking A. A harmonized analysis of five Canadian pregnancy cohort studies: exploring the characteristics and pregnancy outcomes associated with prenatal alcohol exposure. BMC Pregnancy Childbirth 2023; 23:128. [PMID: 36855094 PMCID: PMC9972615 DOI: 10.1186/s12884-023-05447-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 02/14/2023] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND As a teratogen, alcohol exposure during pregnancy can impact fetal development and result in adverse birth outcomes. Despite the clinical and social importance of prenatal alcohol use, limited routinely collected information or epidemiological data exists in Canada. The aim of this study was to pool data from multiple Canadian cohort studies to identify sociodemographic characteristics before and during pregnancy that were associated with alcohol consumption during pregnancy and to assess the impact of different patterns of alcohol use on birth outcomes. METHODS We harmonized information collected (e.g., pregnant women's alcohol intake, infants' gestational age and birth weight) from five Canadian pregnancy cohort studies to consolidate a large sample (n = 11,448). Risk factors for any alcohol use during pregnancy, including any alcohol use prior to pregnancy recognition, and binge drinking, were estimated using binomial regressions including fixed effects of pregnancy cohort membership and multiple maternal risk factors. Impacts of alcohol use during pregnancy on birth outcomes (preterm birth and low birth weight for gestational) were also estimated using binomial regression models. RESULTS In analyses adjusting for multiple risk factors, women's alcohol use during pregnancy, both any use and any binge drinking, was associated with drinking prior to pregnancy, smoking during pregnancy, and white ethnicity. Higher income level was associated with any drinking during pregnancy. Neither drinking during pregnancy nor binge drinking during pregnancy was significantly associated with preterm delivery or low birth weight for gestational age in our sample. CONCLUSIONS Pooling data across pregnancy cohort studies allowed us to create a large sample of Canadian women and investigate the risk factors for alcohol consumption during pregnancy. We suggest that future pregnancy and birth cohorts should always include questions related to the frequency and amount of alcohol consumed before and during pregnancy that are prospectively harmonized to support data reusability and collaborative research.
Collapse
Affiliation(s)
- Rose A. Schmidt
- grid.17063.330000 0001 2157 2938Dalla Lana School of Public Health, University of Toronto, Toronto, ON Canada ,grid.155956.b0000 0000 8793 5925Institute for Mental Health Policy Research, Centre for Addiction and Mental Health (CAMH), Toronto, ON Canada
| | - Tina W. Wey
- grid.63984.300000 0000 9064 4811Research Institute of the McGill University Health Centre, Montreal, QC Canada
| | - Kelly D. Harding
- Canada Fetal Alcohol Spectrum Disorder Research Network, Vancouver, BC Canada ,grid.258970.10000 0004 0469 5874Department of Psychology, Laurentian University, Sudbury, ON Canada
| | - Isabel Fortier
- grid.63984.300000 0000 9064 4811Research Institute of the McGill University Health Centre, Montreal, QC Canada
| | - Stephanie Atkinson
- grid.25073.330000 0004 1936 8227Department of Pediatrics, McMaster University, Hamilton, ON Canada
| | - Suzanne Tough
- grid.22072.350000 0004 1936 7697Owerko Centre at the Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB Canada ,grid.22072.350000 0004 1936 7697Cumming School of Medecine, University of Calgary, Calgary, AB Canada
| | - Nicole Letourneau
- grid.22072.350000 0004 1936 7697Owerko Centre at the Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB Canada
| | - Julia A. Knight
- grid.17063.330000 0001 2157 2938Dalla Lana School of Public Health, University of Toronto, Toronto, ON Canada ,grid.250674.20000 0004 0626 6184Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, ON Canada
| | - William D. Fraser
- grid.86715.3d0000 0000 9064 6198Department of Obstetrics and Gynecology, University of Sherbrooke, Sherbrooke, QC Canada
| | - Alan Bocking
- grid.17063.330000 0001 2157 2938Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON Canada
| |
Collapse
|
4
|
Hitaka D, Fujiyama S, Nishihama Y, Ishii R, Hoshino Y, Hamada H, Miyazono Y, Nakayama SF, Takada H. Assessment of Alcohol Exposure From Alcohol-Based Disinfectants Among Premature Infants in Neonatal Incubators in Japan. JAMA Netw Open 2023; 6:e230691. [PMID: 36826814 PMCID: PMC9958524 DOI: 10.1001/jamanetworkopen.2023.0691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
IMPORTANCE The risk of premature infants in neonatal incubators exposed to evaporated alcohol from alcohol-based disinfectants (ABDs) is unknown. OBJECTIVE To assess alcohol concentrations in the peripheral blood of premature infants and neonatal incubators. DESIGN, SETTING, AND PARTICIPANTS A quality improvement study comparing 2 different populations before and after introduction of ABD practice (ABD-PRAC) was conducted in a neonatal intensive care unit of a single tertiary hospital in Japan. Participants included premature infants who were born before 34 weeks of gestational age and received medical care in neonatal incubators. The study consisted of 3 periods: (1) September 1, 2020, to August 1, 2021 (prospective observation of pre-ABD-PRAC, (2) August 2 to August 22, 2021 (introduction of ABD-PRAC to medical staff and parents in the neonatal intensive care unit), and (3) August 23, 2021, to March 31, 2022 (prospective observation of post-ABD-PRAC). No follow-up studies were initiated. INTERVENTIONS An ABD-PRAC that aimed to reduce alcohol evaporation from ABDs inside neonatal incubators was instituted: (1) place alcohol preps in the incubator just before use and remove them from the incubator as soon as possible and (2) withhold placing hands into the incubators until 60 seconds after using ABDs for disinfection (applied only to family members). MAIN OUTCOMES AND MEASURES Blood alcohol concentration and evaporated alcohol concentrations in neonatal incubators. RESULTS Disinfectant practice was assessed among 28 infants during the pre-ABD-PRAC (17 infants [10 girls]; median gestational age at birth, 29.4 [IQR, 26.3-30.3] weeks) and post-ABD-PRAC (11 infants [3 girls]; median gestational age at birth, 30.0 [IQR, 25.3-32.2] weeks) study periods. The median blood alcohol concentration was 7.0 (IQR, 5.4-9.3) mg/dL pre-ABD-PRAC and 4.2 (IQR, 2.5-7.2) mg/dL post-ABD-PRAC. The median evaporated alcohol concentration inside neonatal incubators during pre-ABD-PRAC during the day was 23.6 (IQR, 15.9-36.5) ppm and, at night, was 13.2 (IQR, 8.9-19.4) ppm; during post-ABD-PRAC, the concentration was 9.4 (IQR, 6.0-16.0) ppm during the day and 5.7 (IQR, 3.6-9.7) ppm at night. The introduction of ABD-PRAC at 22 weeks' corrected gestational age was associated with a lower blood alcohol concentration in premature infants: regression coefficient value, -8.3 (95% CI, -12.0 to -4.7). CONCLUSIONS AND RELEVANCE In this study, alcohol evaporated from ABDs was absorbed by premature infants in neonatal incubators. The findings suggest that introduction of ABD-PRAC was associated with lower alcohol concentrations in neonatal incubators and in the blood of premature infants.
Collapse
Affiliation(s)
- Daisuke Hitaka
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
- Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Satoshi Fujiyama
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
- Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Yukiko Nishihama
- Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Ryota Ishii
- Department of Biostatistics, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yusuke Hoshino
- Department of Neonatology, Ibaraki Children's Hospital, Mito, Ibaraki, Japan
| | - Hiromi Hamada
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yayoi Miyazono
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
- Department of Child Health, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Shoji F. Nakayama
- Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Hidetoshi Takada
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
- Department of Child Health, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| |
Collapse
|
5
|
Liau ZQG, Wang Y, Lin HY, Cheong CK, Gupta S, Hui JHP. Orthopedic concerns of a child with short stature. Curr Opin Pediatr 2022; 34:82-91. [PMID: 34840250 DOI: 10.1097/mop.0000000000001081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE OF REVIEW Pediatric short stature poses severe concerns to the patient, parents, and physicians. Management for pediatric short stature is still widely debated due to heterogenous etiological factors and treatment options. This review will address the approach to pediatric short stature, commonly within the subset of skeletal dysplasia resulting in disproportionate short stature. The following will be discussed: the etiology, clinical, and radiological evaluations, and management for pediatric short stature. RECENT FINDINGS Early recognition of short stature and appropriate referrals is shown to benefit the patient and reduce parental concern. A multidisciplinary team, comprising an orthopedic surgeon, is fundamental to provide holistic care and ensure overall good quality of life. Advancements in clinical diagnostic tools and diversified treatment modalities today provides optimism in managing pediatric short stature. SUMMARY Skeletal dysplasia can be treated with good prognosis if diagnosed and managed early. Thorough clinical, radiological, laboratory, and even genetic investigations are important to differentiate and manage various types of skeletal dysplasia. Our review will provide a comprehensive and up-to-date approach to skeletal dysplasia for pediatric orthopedic surgeons, and indications for physicians to refer patients with suspected short stature to pediatric orthopedic surgeons.
Collapse
Affiliation(s)
- Zi Qiang Glen Liau
- University Orthopaedic, Hand and Reconstructive Microsurgery Cluster
- Department of Orthopaedic Surgery, National University Health System
| | - Yuhang Wang
- National University of Singapore, Yong Loo Lin School of Medicine, Singapore
| | - Hong-Yi Lin
- National University of Singapore, Yong Loo Lin School of Medicine, Singapore
| | - Chin Kai Cheong
- National University of Singapore, Yong Loo Lin School of Medicine, Singapore
| | - Shobhit Gupta
- University Orthopaedic, Hand and Reconstructive Microsurgery Cluster
- Department of Orthopaedic Surgery, National University Health System
| | - James Hoi Po Hui
- University Orthopaedic, Hand and Reconstructive Microsurgery Cluster
- Department of Orthopaedic Surgery, National University Health System
| |
Collapse
|
6
|
Hypertensive Disorders during Pregnancy and Anthropometric Measurement of Children up to 7 Years of Age: The Hokkaido Birth Cohort Study in Japan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182010951. [PMID: 34682697 PMCID: PMC8536157 DOI: 10.3390/ijerph182010951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/22/2021] [Accepted: 10/15/2021] [Indexed: 12/17/2022]
Abstract
Hypertensive disorders during pregnancy (HDP) increase the risk of offspring with a low birth weight, preterm birth and small-for-gestational age; however, evidence of the anthropometric measurements during early childhood remains limited. We aimed to understand the associations between maternal HDP and anthropometric measurements of children aged up to seven years in a Japanese cohort. In total, 20,926 mother–infant pairs participated in the Hokkaido Study on Environment and Children’s Health, Japan, from 2002 to 2013. Medical reports were used to confirm HDP exposure, while weight, height, height z score, and weight z score were the outcomes. The prevalence of HDP in the study population was 1.7%. The birth height of male children born to HDP mothers was smaller as compared to those born to non-HDP mothers. When adjusted with covariates, the linear regressions showed significant changes in birth weight (β: −79.3; 95% confidence interval [CI]: −154.8, −3.8), birth height (−0.67; 95% CI: −1.07, −0.26), weight at seven years (1.21; 95% CI: 0.13, 2.29), and weight gain between four and seven years (1.12; 95% CI: 0.28, 1.96) of male children exposed to HDP. Differences were more significant in male children than female. Our study showed that despite low birth weight, male children exposed to HDP caught up with their growth and gained more weight by seven years of age compared with male children not exposed to HDP, whereas no such differences were observed in female children; however, this finding requires replication.
Collapse
|
7
|
Cardoso KMMC, Gomes LA, Reis AMS, Silva CMO, Tamiasso NV, Serakides R, Ocarino NM. Phenotype and synthesis activity of joint chondrocytes extracted from newborn rats with prenatal ethanol exposure. Hum Exp Toxicol 2021; 40:S414-S422. [PMID: 34565211 DOI: 10.1177/09603271211045949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Thirteen female Wistar rats were divided into two groups: one treated with ethanol and the other of untreated. Four newborns from each mother were selected and weighed, measured, and evaluated for physical characteristics. From these neonates, chondrocytes were extracted from the articular cartilages of the femur and tibia, and cultivated in a chondrogenic medium at 37oC and 5% CO2. At 7, 14, and 21 days of cultivation, alkaline phosphatase activity tests, MTT conversion to formazan, and percentage area covered by cells per field were performed. At 21 days, the percentage of PAS+ areas in 3D cultures was performed, as well as the evaluation of gene transcript expression for aggrecan, SOX-9, collagen type II, collagen X, Runx-2, and VEGF by real-time RT-PCR. The means were compared by Student's t-test. The weight of the ethanol group neonates was significantly lower than that of the controls. Chondrocyte cultures from the ethanol group showed significantly higher AP activity, MTT conversion, and cell percentage. There was higher expression of collagen type II and lower expression of SOX-9 in the ethanol group. There was no difference in the percentage of PAS+ areas in pellets and in expression of aggrecan, collagen X, Runx-2, or VEGF between groups. In conclusion, prenatal exposure to ethanol alters the phenotype and activity of offspring chondrocytes, which may be mechanisms by which endochondral bone formation is compromised by maternal ethanol consumption.
Collapse
Affiliation(s)
- Kênia Mara M C Cardoso
- Núcleo de Células-Tronco e Terapia Celular (NCT-TCA), Departamento de Clínica e CirurgiaVeterinárias, Escola de Veterinária, 154001UFMG, Belo Horizonte, Brazil
| | - Lorenna A Gomes
- Núcleo de Células-Tronco e Terapia Celular (NCT-TCA), Departamento de Clínica e CirurgiaVeterinárias, Escola de Veterinária, 154001UFMG, Belo Horizonte, Brazil
| | - Amanda Maria S Reis
- Instituto de Ciências Biológicas, Departamento de Patologia Geral, 113014UFMG, Belo Horizonte, Brazil
| | - Carla Maria O Silva
- Núcleo de Células-Tronco e Terapia Celular (NCT-TCA), Departamento de Clínica e CirurgiaVeterinárias, Escola de Veterinária, 154001UFMG, Belo Horizonte, Brazil
| | - Natalia V Tamiasso
- Núcleo de Células-Tronco e Terapia Celular (NCT-TCA), Departamento de Clínica e CirurgiaVeterinárias, Escola de Veterinária, 154001UFMG, Belo Horizonte, Brazil
| | - Rogéria Serakides
- Núcleo de Células-Tronco e Terapia Celular (NCT-TCA), Departamento de Clínica e CirurgiaVeterinárias, Escola de Veterinária, 154001UFMG, Belo Horizonte, Brazil
| | - Natalia M Ocarino
- Núcleo de Células-Tronco e Terapia Celular (NCT-TCA), Departamento de Clínica e CirurgiaVeterinárias, Escola de Veterinária, 154001UFMG, Belo Horizonte, Brazil
| |
Collapse
|
8
|
An Association between Maternal Occupations and Low Birth Weight Infants in Japan from 1995 to 2015. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18158040. [PMID: 34360335 PMCID: PMC8345668 DOI: 10.3390/ijerph18158040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/28/2021] [Accepted: 07/28/2021] [Indexed: 11/26/2022]
Abstract
Differences in low birth weight rate depending on maternal socioeconomic characteristics have not yet been demonstrated using the Vital Statistics in Japan; therefore, this study aimed to investigate these differences according to maternal occupations. “Report of Vital Statistics: Occupational and Industrial Aspects” and the Vital Statistics in Japan were used every five years from 1995 to 2015. Nine types of occupations were compared. The low birth weight rate was calculated according to maternal occupations and year. Also, the standardized low birth weight ratio was obtained by dividing the number of low-birth-weight infants for each maternal occupation by an expected number of low birth weight infants. The standardized low birth weight ratio for manual workers was the highest among all occupations from 2000 to 2015, and it was significantly higher than one throughout the years. The ratio for clerical workers was also significantly higher than one from 1995 to 2010. Whereas, the ratio for farmers was significantly lower than one in most of the years. It was suggested that health guidance and prenatal care are particularly needed for manual workers, and a study investigating the differences in prenatal characteristics among maternal occupations is necessary for finding a reason for disparity.
Collapse
|