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Saijo Y, Yoshioka E, Sato Y, Kunori Y, Kanaya T, Nakanishi K, Kato Y, Nagaya K, Takahashi S, Ito Y, Iwata H, Yamaguchi T, Miyashita C, Itoh S, Kishi R. Maternal pre-pregnancy body mass index and related factors: A cross-sectional analysis from the Japan Environment and Children's Study. PLoS One 2024; 19:e0304844. [PMID: 38833493 PMCID: PMC11149848 DOI: 10.1371/journal.pone.0304844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 05/21/2024] [Indexed: 06/06/2024] Open
Abstract
Socioeconomic status and smoking are reportedly associated with underweight and obesity; however, their associations among pregnant women are unknown. This study aimed to investigate whether socioeconomic factors, namely educational attainment, household income, marital status, and employment status, were associated with pre-pregnancy body mass index (BMI) categories, including severe-moderate underweight (BMI ≤ 16.9 kg/m2), mild underweight (BMI, 17.0-18.4 kg/m2), overweight (BMI, 25.0-29.9 kg/m2), and obese (BMI ≥ 30.0 kg/m2) among Japanese pregnant women using data from the Japan Environment and Children's Study (JECS). In total, pregnant women were included 96,751. Age- and parity-adjusted multivariable multinomial logistic regression analyses assessed socioeconomic factors and smoking associations with falling within abnormal BMI categories (normal BMI as the reference group). Lower education and lower household were associated with overweight and obesity, and, especially, lowest education and household income had relatively higher point estimate relative ratios (RRs) of 3.97 and 2.84, respectively. Regarding the risks for underweight, however, only junior high school education had a significantly higher RR for severely to moderately underweight. Regarding occupational status, homemakers or the unemployed had a higher RR for severe-moderate underweight, overweight, and obesity. Unmarried, divorced, or bereaved women had significantly higher RRs for mildly underweight status. Quitting smoking early in pregnancy/still smoking had higher RRs for all four not having normal BMI outcomes; however, quitting smoking before pregnancy had a higher RR only for obese individuals. Lower educational attainment and smoking are essential intervention targets for obesity and severe-moderate underweight prevention in younger women. Lower household income is also a necessary target for obesity.
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Affiliation(s)
- Yasuaki Saijo
- Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan
| | - Eiji Yoshioka
- Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan
| | - Yukihiro Sato
- Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan
| | - Yuki Kunori
- Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan
| | - Tomoko Kanaya
- Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan
| | - Kentaro Nakanishi
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yasuhito Kato
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Ken Nagaya
- Division of Neonatology, Perinatal Medical Center, Asahikawa Medical University Hospital, Asahikawa, Hokkaido, Japan
| | - Satoru Takahashi
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yoshiya Ito
- Faculty of Nursing, Japanese Red Cross Hokkaido College of Nursing, Kitami, Hokkaido, Japan
| | - Hiroyoshi Iwata
- Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan
| | - Takeshi Yamaguchi
- Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan
| | - Sachiko Itoh
- Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan
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Lee MH, Zea R, Garrett JW, Summers RM, Pickhardt PJ. AI-generated CT body composition biomarkers associated with increased mortality risk in socioeconomically disadvantaged individuals. Abdom Radiol (NY) 2024; 49:1330-1340. [PMID: 38280049 DOI: 10.1007/s00261-023-04161-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 01/29/2024]
Abstract
PURPOSE To evaluate the relationship between socioeconomic disadvantage using national area deprivation index (ADI) and CT-based body composition measures derived from fully automated artificial intelligence (AI) tools to identify body composition measures associated with increased risk for all-cause mortality and adverse cardiovascular events. METHODS Fully automated AI body composition tools quantifying abdominal aortic calcium, abdominal fat (visceral [VAT], visceral-to-subcutaneous ratio [VSR]), and muscle attenuation (muscle HU) were applied to non-contrast CT examinations in adults undergoing screening CT colonography (CTC). Patients were partitioned into 5 socioeconomic groups based on the national ADI rank at the census block group level. Pearson correlation analysis was performed to determine the association between national ADI and body composition measures. One-way analysis of variance was used to compare means across groups. Odds ratios (ORs) were generated using high-risk, high specificity (90% specificity) body composition thresholds with the most disadvantaged groups being compared to the least disadvantaged group (ADI < 20). RESULTS 7785 asymptomatic adults (mean age, 57 years; 4361:3424 F:M) underwent screening CTC from April 2004-December 2016. ADI rank data were available in 7644 patients. Median ADI was 31 (IQR 22-43). Aortic calcium, VAT, and VSR had positive correlation with ADI and muscle attenuation had a negative correlation with ADI (all p < .001). Compared with the least disadvantaged group, mean differences for the most disadvantaged group (ADI > 80) were: Aortic calcium (Agatston) = 567, VAT = 27 cm2, VSR = 0.1, and muscle HU = -6 HU (all p < .05). Compared with the least disadvantaged group, the most disadvantaged group had significantly higher odds of having high-risk body composition measures: Aortic calcium OR = 3.8, VAT OR = 2.5, VSR OR = 2.0, and muscle HU OR = 3.1(all p < .001). CONCLUSION Fully automated CT body composition tools show that socioeconomic disadvantage is associated with high-risk body composition measures and can be used to identify individuals at increased risk for all-cause mortality and adverse cardiovascular events.
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Affiliation(s)
- Matthew H Lee
- Department of Radiology, University of Wisconsin School of Medicine & Public Health, 600 Highland Ave, Madison, WI, 53792, USA.
| | - Ryan Zea
- Department of Radiology, University of Wisconsin School of Medicine & Public Health, 600 Highland Ave, Madison, WI, 53792, USA
| | - John W Garrett
- Department of Radiology, University of Wisconsin School of Medicine & Public Health, 600 Highland Ave, Madison, WI, 53792, USA
| | - Ronald M Summers
- Imaging Biomarkers and Computer-Aided Diagnosis Laboratory, Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Perry J Pickhardt
- Department of Radiology, University of Wisconsin School of Medicine & Public Health, 600 Highland Ave, Madison, WI, 53792, USA
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van Zwieten A, Dai J, Blyth FM, Wong G, Khalatbari-Soltani S. Overadjustment bias in systematic reviews and meta-analyses of socio-economic inequalities in health: a meta-research scoping review. Int J Epidemiol 2024; 53:dyad177. [PMID: 38129958 PMCID: PMC10859162 DOI: 10.1093/ije/dyad177] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Overadjustment bias occurs when researchers adjust for an explanatory variable on the causal pathway from exposure to outcome, which leads to biased estimates of the causal effect of the exposure. This meta-research review aimed to examine how previous systematic reviews and meta-analyses of socio-economic inequalities in health have managed overadjustment bias. METHODS We searched Medline and Embase until 16 April 2021 for systematic reviews and meta-analyses of observational studies on associations between individual-level socio-economic position and health outcomes in any population. A set of criteria were developed to examine methodological approaches to overadjustment bias adopted by included reviews (rated Yes/No/Somewhat/Unclear). RESULTS Eighty-four reviews were eligible (47 systematic reviews, 37 meta-analyses). Regarding approaches to overadjustment, whereas 73% of the 84 reviews were rated as Yes for clearly defining exposures and outcomes, all other approaches were rated as Yes for <55% of reviews; for instance, 5% clearly defined confounders and mediators, 2% constructed causal diagrams and 35% reported adjusted variables for included studies. Whereas only 2% included overadjustment in risk of bias assessment, 54% included confounding. Of the 37 meta-analyses, 16% conducted sensitivity analyses related to overadjustment. CONCLUSIONS Our findings suggest that overadjustment bias has received insufficient consideration in systematic reviews and meta-analyses of socio-economic inequalities in health. This is a critical issue given that overadjustment bias is likely to result in biased estimates of health inequalities and accurate estimates are needed to inform public health interventions. There is a need to highlight overadjustment bias in review guidelines.
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Affiliation(s)
- Anita van Zwieten
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Centre for Kidney Research, Children’s Hospital at Westmead, Westmead, NSW, Australia
| | - Jiahui Dai
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Fiona M Blyth
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- ARC Centre of Excellence in Population Ageing Research (CEPAR), University of Sydney, Sydney, NSW, Australia
| | - Germaine Wong
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Centre for Kidney Research, Children’s Hospital at Westmead, Westmead, NSW, Australia
- Centre for Transplant and Renal Research, Westmead Hospital, Westmead, NSW, Australia
| | - Saman Khalatbari-Soltani
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- ARC Centre of Excellence in Population Ageing Research (CEPAR), University of Sydney, Sydney, NSW, Australia
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Ravi S, Shanahan MJ, Levitt B, Harris KM, Cole SW. Socioeconomic inequalities in early adulthood disrupt the immune transcriptomic landscape via upstream regulators. Sci Rep 2024; 14:1255. [PMID: 38218990 PMCID: PMC10787749 DOI: 10.1038/s41598-024-51517-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 01/06/2024] [Indexed: 01/15/2024] Open
Abstract
Disparities in socio-economic status (SES) predict many immune system-related diseases, and previous research documents relationships between SES and the immune cell transcriptome. Drawing on a bioinformatically-informed network approach, we situate these findings in a broader molecular framework by examining the upstream regulators of SES-associated transcriptional alterations. Data come from the National Longitudinal Study of Adolescent to Adult Health (Add Health), a nationally representative sample of 4543 adults in the United States. Results reveal a network-of differentially expressed genes, transcription factors, and protein neighbors of transcription factors-that shows widespread SES-related dysregulation of the immune system. Mediational models suggest that body mass index (BMI) plays a key role in accounting for many of these associations. Overall, the results reveal the central role of upstream regulators in socioeconomic differences in the molecular basis of immunity, which propagate to increase risk of chronic health conditions in later-life.
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Affiliation(s)
- Sudharshan Ravi
- Jacobs Center for Productive Youth Development, University of Zürich, Andreasstrasse 15, 8050, Zürich, Switzerland.
| | - Michael J Shanahan
- Jacobs Center for Productive Youth Development, University of Zürich, Andreasstrasse 15, 8050, Zürich, Switzerland
- Department of Sociology, University of Zürich, 8050, Zürich, Switzerland
| | - Brandt Levitt
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27516, USA
| | - Kathleen Mullan Harris
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27516, USA
- Department of Sociology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-3210, USA
| | - Steven W Cole
- School of Medicine, University of California, Los Angeles, CA, 90095, USA
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5
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Aronoff JE, McDade TW, Adair LS, Lee NR, Carba DB, MacIsaac JL, Dever K, Atashzay P, Kobor MS, Kuzawa CW. Socioeconomic status is negatively associated with immunosenescence but positively associated with inflammation among middle-aged women in Cebu, Philippines. Brain Behav Immun 2024; 115:101-108. [PMID: 37820972 PMCID: PMC10841485 DOI: 10.1016/j.bbi.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 09/30/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Socioeconomic status (SES) gradients in health are well-documented, and while biological pathways are incompletely understood, chronic inflammation and accelerated immune aging (immunosenescence) among lower SES individuals have been implicated. However, previous findings have come from samples in higher income countries, and it is unclear how generalizable they are to lower- and middle-income countries (LMIC) with different infectious exposures and where adiposity-an important contributor to chronic inflammation-might show different SES patterning. To address this gap, we explored associations between SES and inflammation and immunosenescence in a sample of women in Cebu, Philippines. METHODS Data came from the mothers of the Cebu Longitudinal Health and Nutrition Survey birth cohort (mean age: 47.7, range: 35-69 years). SES was measured as a combination of annual household income, education level, and assets. Chronic inflammation was measured using C-reactive protein (CRP) in plasma samples from 1,834 women. Immunosenescence was measured by the abundance of exhausted CD8T (CD8 + CD28-CD45RA-) and naïve CD8T and CD4T cells, estimated from DNA methylation in whole blood in a random subsample of 1,028. Possible mediators included waist circumference and a collection of proxy measures of pathogen exposure. RESULTS SES was negatively associated with the measures of immunosenescence, with slight evidence for mediation by a proxy measure for pathogen exposure from the household's drinking water source. In contrast, SES was positively associated with CRP, which was explained by the positive association with waist circumference. CONCLUSIONS Similar to higher income populations, in Cebu there is an SES-gradient in pathogen exposures and immunosenescence. However, lifestyle changes occurring more rapidly among higher SES individuals is contributing to a positive association between SES and adiposity and inflammation. Our results suggest more studies are needed to clarify the relationship between SES and inflammation and immunosenescence across LMIC.
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Affiliation(s)
- Jacob E Aronoff
- Department of Anthropology, Northwestern University, Evanston, IL, USA; Institute for Policy Research, Northwestern University, Evanston, IL, USA.
| | - Thomas W McDade
- Department of Anthropology, Northwestern University, Evanston, IL, USA; Institute for Policy Research, Northwestern University, Evanston, IL, USA
| | - Linda S Adair
- Department of Nutrition, Gillings School of Global Public Health, Carolina Population Center, CB #8120, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nanette R Lee
- Office of Population Studies Foundation, University of San Carlos, Cebu City, Philippines
| | - Delia B Carba
- Office of Population Studies Foundation, University of San Carlos, Cebu City, Philippines
| | - Julia L MacIsaac
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Edwin S.H. Leong Centre for Healthy Aging, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Kristy Dever
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Edwin S.H. Leong Centre for Healthy Aging, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Parmida Atashzay
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Edwin S.H. Leong Centre for Healthy Aging, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Michael S Kobor
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Edwin S.H. Leong Centre for Healthy Aging, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Molecular Medicine and Therapeutics, Vancouver, British Columbia, Canada
| | - Christopher W Kuzawa
- Department of Anthropology, Northwestern University, Evanston, IL, USA; Institute for Policy Research, Northwestern University, Evanston, IL, USA
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Putra IGNE, Daly M, Sutin A, Steptoe A, Robinson E. The psychological legacy of past obesity and early mortality: evidence from two longitudinal studies. BMC Med 2023; 21:448. [PMID: 37974151 PMCID: PMC10655273 DOI: 10.1186/s12916-023-03148-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 11/01/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND We test a novel 'weight scarring' hypothesis which suggests that past obesity is associated with impairments in current psychological well-being and this increases risk of negative physical health outcomes associated with obesity. Across two nationally representative studies, we tested whether past obesity is associated with current psychological outcomes and whether these psychological outcomes explain the association between past obesity and subsequent early mortality. METHODS Data were from the National Health and Nutrition Examination Survey (NHANES) (n = 29,047) and the Health and Retirement Study (HRS) (n = 11,998). Past obesity was defined based on maximum lifetime weight in NHANES and the highest weight from past study waves in the HRS. Across both studies, current depressive symptoms were analysed. A set of 10 additional well-being measures were combined to produce an 'index of impaired well-being' in HRS. Subsequent all-cause mortality was examined using National Deaths Index records in NHANES and household interviews in HRS. Linear or logistic regression, Cox proportional hazard regression, and causal mediation models were used. RESULTS We found that past obesity was associated with greater current depressive symptoms after controlling for current weight status and in analyses limited to those who were no longer classified as having obesity in NHANES (β = 0.17; 95% CI: 0.13, 0.22) and HRS (β = 0.20; 95% CI: 0.08, 0.31). In HRS, past obesity was also associated with a range of current negative psychological outcomes, including an index of impaired psychological well-being (β = 0.16; 95% CI: 0.05, 0.27). Past obesity was associated with a higher risk of early mortality in both NHANES and HRS (HR = 1.31; 95% CI: 1.16, 1.48 and HR = 1.34; 95% CI: 1.20, 1.50, respectively). Depressive symptoms explained 6% (95% CI: 0.01, 0.10) and 5% (95% CI: 0.01, 0.09) of the association between past obesity and premature mortality in NHANES and HRS, respectively. Impaired psychological well-being partly mediated the association between past obesity and premature mortality by 10% (95% CI: 0.04, 0.16) in HRS. CONCLUSIONS Our findings suggest that there may be a psychological legacy of past obesity that is associated with raised mortality risk. Ensuring people with obesity receive psychological support even after experiencing weight loss may be important.
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Affiliation(s)
- I Gusti Ngurah Edi Putra
- Department of Psychology, Institute of Population Health, University of Liverpool, Eleanor Rathbone Building, Bedford Street South, Liverpool, L69 7ZA, UK.
| | - Michael Daly
- Department of Psychology, Maynooth University, Maynooth, Ireland
| | - Angelina Sutin
- Department of Behavioral Sciences and Social Medicine, Florida State University College of Medicine, Tallahassee, USA
| | - Andrew Steptoe
- Department of Behavioural Science and Health, Institute of Epidemiology and Health Care, Faculty of Population Health Sciences, University College London, London, UK
| | - Eric Robinson
- Department of Psychology, Institute of Population Health, University of Liverpool, Eleanor Rathbone Building, Bedford Street South, Liverpool, L69 7ZA, UK
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Dang Y, Duan X, Rong P, Yan M, Zhao Y, Mi B, Zhou J, Chen Y, Wang D, Pei L. Life-course social disparities in body mass index trajectories across adulthood: cohort study evidence from China health and nutrition survey. BMC Public Health 2023; 23:1955. [PMID: 37814213 PMCID: PMC10563291 DOI: 10.1186/s12889-023-16881-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 10/03/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND The social disparities in obesity may originate in early life or in adulthood, and the associations of socioeconomic position (SEP) with obesity could alter over time. It is unclear how lifetime-specific and life-course SEP influence adult obesity development in China. METHODS Based on the China Health and Nutrition Survey (CHNS), three SEP-related indicators, including the father's occupational position and the participant's education and occupational position, were obtained. The life-course socioeconomic changes and a cumulative SEP score were established to represent the life-course SEP of the participants in the study. The growth mixture modeling was used to identify BMI trajectories in adulthood. Multinomial logistic regression was adopted to assess the associations between SEP and adult BMI trajectories. RESULTS A total of 3,138 participants were included in the study. A positive correlation was found between the paternal occupational position, the participants' occupational position, education, and obesity in males, whereas an inverse correlation was observed among females. Males who experienced social upward mobility or remained stable high SEP during the follow-up had 2.31 and 2.52-fold risks of progressive obesity compared to those with a stable-low SEP. Among females, stable high SEP in both childhood and adulthood was associated with lower risks of progressive obesity (OR = 0.63, 95% CI: 0.43-0.94). Higher risks of obesity were associated with the life-course cumulative SEP score among males, while the opposite relationship was observed among females. CONCLUSIONS The associations between life-course SEP and BMI development trajectories differed significantly by gender. Special emphasis should be placed on males experiencing upward and stable high socioeconomic change.
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Affiliation(s)
- Yusong Dang
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, P.R. China
| | - Xinyu Duan
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, P.R. China
| | - Peixi Rong
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, P.R. China
| | - Mingxin Yan
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, P.R. China
| | - Yaling Zhao
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, P.R. China
| | - Baibing Mi
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, P.R. China
| | - Jing Zhou
- Department of Pediatrics, The Second Affiliated Hospitical of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, P.R. China
| | - Yulong Chen
- Institute of Basic and Translational Medicine, Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical University, Xi'an, 710021, Shaanxi, P.R. China
| | - Duolao Wang
- Biostatistics Unit, Department of Clinical Sciences, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK
- Department of Neurology, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Leilei Pei
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, P.R. China.
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Bruno RM, Varbiro S, Pucci G, Nemcsik J, Lønnebakken MT, Kublickiene K, Schluchter H, Park C, Mozos I, Guala A, Hametner B, Seeland U, Boutouyrie P. Vascular function in hypertension: does gender dimension matter? J Hum Hypertens 2023; 37:634-643. [PMID: 37061653 DOI: 10.1038/s41371-023-00826-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 02/27/2023] [Accepted: 03/27/2023] [Indexed: 04/17/2023]
Abstract
Blood pressure and vascular ageing trajectories differ between men and women. These differences develop due to sex-related factors, attributable to sex chromosomes or sex hormones, and due to gender-related factors, mainly related to different sociocultural behaviors. The present review summarizes the relevant facts regarding gender-related differences in vascular function in hypertension. Among sex-related factors, endogenous 17ß-estradiol plays a key role in protecting pre-menopausal women from vascular ageing. However, as vascular ageing (preceding and inducing hypertension) has a steeper increase in women than in men starting already from the third decade, it is likely that gender-related factors play a prominent role, especially in the young. Among gender-related factors, psychological stress (including that one related to gender-based violence and discrimination), depression, some psychological traits, but also low socioeconomic status, are more common in women than men, and their impact on vascular ageing is likely to be greater in women. Men, on the contrary, are more exposed to the vascular adverse consequences of alcohol consumption, as well as of social deprivation, while "toxic masculinity" traits may result in lower adherence to lifestyle and preventive strategies. Unhealthy diet habits are more prevalent in men and smoking is equally prevalent in the two sexes, but have a disproportional negative effect on women's vascular health. In conclusion, given the major and complex role of gender-related factors in driving vascular alterations and blood pressure patterns, gender dimension should be systematically integrated into future research on vascular function and hypertension and to tailor cardiovascular prevention strategies.
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Affiliation(s)
- Rosa-Maria Bruno
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France.
- Pharmacology Unit, Hôpital Européen Georges Pompidou, Paris, France.
| | - Szabolcs Varbiro
- Workgroup for Science Management, Doctoral School, Semmelweis University, Budapest, Hungary
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Giacomo Pucci
- Internal Medicine Unit, "Santa Maria" Terni Hospital and Department of Medicine and Surgery-University of Perugia, Perugia, Italy
| | - János Nemcsik
- Department of Family Medicine and Health Service of Zuglo (ZESZ), Semmelweis University, Budapest, Hungary
| | - Mai Tone Lønnebakken
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Karolina Kublickiene
- Institution for Clinical Science, Intervention and Technology, Department of Renal Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Helena Schluchter
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Chloe Park
- MRC Unit for Lifelong Health and Ageing at UCL, UCL Institute of Cardiovascular Science, University College London, London, UK
| | - Ioana Mozos
- Department of Functional Sciences-Pathophysiology, Center for Translational Research and Systems Medicine, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
| | - Andrea Guala
- Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain
- CIBER-CV, Instituto de Salud Carlos III, Madrid, Spain
| | - Bernhard Hametner
- AIT Austrian Institute of Technology, Center for Health & Bioresources, Vienna, Austria
| | - Ute Seeland
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitaetsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Pierre Boutouyrie
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
- Pharmacology Unit, Hôpital Européen Georges Pompidou, Paris, France
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Le S, Törmäkangas T, Wang X, Lei SM, Møller NC, Brønd JC, Wedderkopp N, Wiklund P, Cheng S. Bidirectional associations between adiposity and physical activity: a longitudinal study from pre-puberty to early adulthood. Front Endocrinol (Lausanne) 2023; 14:1135852. [PMID: 37404302 PMCID: PMC10315841 DOI: 10.3389/fendo.2023.1135852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 05/31/2023] [Indexed: 07/06/2023] Open
Abstract
Objective This study aimed to investigate directional influences in the association between adiposity and physical activity (PA) from pre-puberty to early adulthood. Methods In the Calex-study, height, weight, body fat and leisure-time physical activity (LTPA) were measured at age11.2-years, 13.2-years and 18.3-years in 396 Finnish girls. Body fat was measured by dual-energy X-ray absorptiometry, calculating fat mass index (FMI) as total fat mass in kilograms divided by height in meters squared. LTPA level was evaluated using a physical activity questionnaire. In the European Youth Heart Study (EYHS), height, weight and habitual PA were measured at age 9.6-years, 15.7-years and 21.8-years in 399 Danish boys and girls. Habitual PA and sedentary behaviour were assessed with an accelerometer. Directional influences of adiposity and PA were examined using a bivariate cross-lagged path panel model. Results The temporal stability of BMI from pre-puberty to early adulthood was higher than the temporal stability of PA or physical inactivity over the same time period both in girls and boys. In the Calex-study, BMI and FMI at age 11.2-years were both directly associated with LTPA at age 13.2-years (β = 0.167, p = 0.005 and β = 0.167, p = 0.005, respectively), whereas FMI at age 13.2-years showed an inverse association with LTPA at age 18.3-years (β = - 0.187, p = 0.048). However, earlier LTPA level was not associated with subsequent BMI or FMI. In the EYHS, no directional association was found for physical inactivity, light-, moderate-, and vigorous-PA with BMI during the follow-up in girls. In boys, BMI at age 15.7-years was directly associated with moderate PA (β = 0.301, p = 0.017) at age 21.8-years, while vigorous PA at age 15.7-years showed inverse associations with BMI at age 21.8-years (β = - 0.185, p = 0.023). Conclusion Our study indicates that previous fatness level is a much stronger predictor of future fatness than level of leisure-time or habitual physical activity during adolescence. The directional associations between adiposity and physical activity are not clear during adolescence, and may differ between boys and girls depending on pubertal status.
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Affiliation(s)
- Shenglong Le
- Exercise Health and Technology Center, Physical Education Department, Shanghai Jiao Tong University, Shanghai, China
- Department of Physical Therapy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
- Exercise Translational Medicine Center, Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Timo Törmäkangas
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Xiuqiang Wang
- Exercise Translational Medicine Center, Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China
| | - Si Man Lei
- Exercise Translational Medicine Center, Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China
- Faculty of Education, University of Macao, Macao, China
| | - Niels Christian Møller
- Centre of Research in Childhood Health, Research Unit for Exercise Epidemiology, Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Jan Christian Brønd
- Centre of Research in Childhood Health, Research Unit for Exercise Epidemiology, Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Niels Wedderkopp
- The Research Unit of Pediatrics, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Petri Wiklund
- Exercise Health and Technology Center, Physical Education Department, Shanghai Jiao Tong University, Shanghai, China
- Huawei Helsinki Research Center, Huawei Technologies Oy (Finland) Co. Ltd, Helsinki, Finland
| | - Sulin Cheng
- Exercise Health and Technology Center, Physical Education Department, Shanghai Jiao Tong University, Shanghai, China
- Exercise Translational Medicine Center, Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
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Candio P, Mujica FP, Frew E. Socio-economic accounting of inequalities in excess weight: a population-based analysis. BMC Public Health 2023; 23:721. [PMID: 37081498 PMCID: PMC10116779 DOI: 10.1186/s12889-023-15592-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 04/03/2023] [Indexed: 04/22/2023] Open
Abstract
BACKGROUND The prevalence of excess weight has been increasing globally in the last decades, affecting disproportionally adults from low socio-economic backgrounds and putting undue pressure on health systems and societal resources. In England, tackling unfair and unjust health inequalities is at the heart of national public health policy, and a prerequisite for enabling these decision makers to set policy priorities is an understanding of the prevalence and determinants of excess weight inequalities in their local population. METHODS We conducted both pooled (England) and regional-level (nine regions: North-East, North-West, Yorkshire and Humber, East Midlands, West Midlands, East of England, London, South East and South West) analyses of individual level data from a nationally representative sample of adults (N = 6,387). We used the Corrected Concentration Index (CCI) to measure absolute inequalities in excess weight across three dimensions of socio-economic deprivation: neighbourhood-level deprivation, occupational status and educational qualification. We used a Shapley decomposition method to evaluate their relative contribution to inequality. RESULTS At a national level, all three dimensions of socio-economic deprivation were found to be positively associated with excess weight across the adult population, as measured by the CCI, with educational qualification ranking first [CCI: -0.090, p < 0.01], closely followed by neighbourhood-level deprivation [CCI: -0.050, p < 0.01]. Large variation was found between regions and genders, with inequality being either considerably higher or exclusively patterned among women. The strongest independent factor contributing to excess weight inequalities was having a long-lasting limiting illness, especially among women and towards the right tail of the excess weight spectrum. Heterogeneous patterns of contribution across the excess weight spectrum were found, however age played a dominant role toward the left tail of the distribution. CONCLUSIONS While socio-economic inequalities in excess weight exist in the English adult population, our findings underscore the importance of considering multiple dimensions of deprivation and the unique needs of different populations when developing policies to address overweight and obesity. Targeted interventions for adults with overweight and obesity with long-lasting illnesses and women can generate both short-term and long-term economic benefits, by reducing healthcare costs and increasing workforce productivity.
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Affiliation(s)
- Paolo Candio
- Department of Economics and Management, University of Trento, Trento, Italy.
- Centre for Economics of Obesity, Institute of Applied Health Research, University of Birmingham, Birmingham, UK.
| | - Fiorella Parra Mujica
- Erasmus School of Health Policy and Management (ESHPM), Erasmus University Rotterdam, Rotterdam, Netherlands
- Nuffield Department of Population Health, Health Economics Research Centre (HERC), University of Oxford, Oxford, UK
| | - Emma Frew
- Centre for Economics of Obesity, Institute of Applied Health Research, University of Birmingham, Birmingham, UK
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11
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Kwon S, Wehrmeister FC, Gonçalves H, da Silva BGC, Menezes AMB. The Joint Associations of Physical Activity and Sedentary Behaviors on Adiposity during Adolescence: The 1993 Pelotas (Brazil) Cohort Study. CHILDREN (BASEL, SWITZERLAND) 2023; 10:265. [PMID: 36832397 PMCID: PMC9954888 DOI: 10.3390/children10020265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/17/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023]
Abstract
A prior study conducted in high-income countries demonstrated that specific sedentary behavior, such as TV viewing, is prospectively associated with adiposity in both active and inactive adolescents. The aim of this study was to examine the joint associations of sedentary behaviors and moderate- and vigorous-intensity physical activity (MVPA) with adiposity among Brazilian adolescents. This prospective cohort study included 377 participants of the 1993 Pelotas (Brazil) Study who completed an accelerometry assessment at age 13 years and a dual-energy X-ray absorptiometry (DXA) assessment at age 18 years. Accelerometer-measured MVPA was dichotomized into high (≥60 min/day) and low (<60 min/day). Accelerometer-measured sedentary time (SED) was dichotomized into low (<49 min/h) and high (≥49 min/h) based on the median. Self-reported TV viewing time was also dichotomized into low (<3 h/day) and high (≥3 h/day) based on the median. We combined the two MVPA groups (high and low) and two SED groups (low and high) to form the four MVPA&SED groups: high&low, high&high, low&low, and low&high. We also created four MVPA&TV groups in the same manner. Fat mass index (FMI; kg/m2) was calculated using DXA-derived fat mass. Multivariable linear regression analyses compared FMI at 18 years among the four MVPA&SED groups and among the four MVPA&TV groups, adjusting for socioeconomic status, energy intake, and baseline adiposity. The analysis results showed that SED or TV viewing time was not prospectively associated with adiposity in both active and inactive Brazilian adolescents. This study suggests that the association between specific sedentary behaviors, such as TV viewing, and adiposity may differ across societal settings-in this case, high-income vs. middle-income countries.
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Affiliation(s)
- Soyang Kwon
- Department of Pediatrics, Northwestern University, Chicago, IL 60611, USA
| | - Fernando C. Wehrmeister
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Peloas CEP96020-220, RS, Brazil
| | - Helen Gonçalves
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Peloas CEP96020-220, RS, Brazil
| | | | - Ana M. B. Menezes
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Peloas CEP96020-220, RS, Brazil
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12
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Yusuf M, Montgomery G, Hamer M, McPhee J, Cooper R. Associations between childhood and adulthood socioeconomic position and grip strength at age 46 years: findings from the 1970 British Cohort Study. BMC Public Health 2022; 22:1427. [PMID: 35883072 PMCID: PMC9327373 DOI: 10.1186/s12889-022-13804-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 07/08/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Muscle weakness is a key criterion for important age-related conditions, including sarcopenia and frailty. Research suggests lower childhood socioeconomic position (SEP) may be associated with muscle weakness in later life but there is little evidence on associations in younger adults closer to peak muscle strength. We aimed to examine relationships between indicators of SEP in childhood and adulthood and grip strength at age 46y. METHODS We examined 7,617 participants from the 1970 British Cohort Study with grip strength measurements at 46y. We used sex-specific linear regression models to test associations between five different indicators of SEP in childhood and adulthood (paternal occupational class and parental education levels at age 5 and own occupational class and education level at age 46) and maximum grip strength. Models were adjusted for birth weight, BMI in childhood and adulthood, adult height, disability in childhood, leisure-time physical activity in childhood and adulthood, sedentary behaviour in childhood and adulthood, occupational activity and smoking at age 46. RESULTS Among women, lower SEP in childhood and adulthood was associated with weaker grip strength even after adjustments for covariates. For example, in fully-adjusted models, women whose mothers had no qualifications at age five had mean grip strength 0.99 kg (95% CI: -1.65, -0.33) lower than women whose mothers were educated to degree and higher. Among men, lower levels of father's education and both adult SEP indicators were associated with stronger grip. The association between own occupational class and grip strength deviated from linearity; men in skilled-manual occupations (i.e. the middle occupational group) had stronger grip than men in the highest occupational group (Difference in means: 1.33 kg (0.60, 2.06)) whereas there was no difference in grip strength between the highest and lowest occupational groups. Adjustment for occupational activity largely attenuated these associations. CONCLUSION Findings highlight the need to identify age and sex-specific interventions across life to tackle inequalities in important age-related conditions related to weakness.
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Affiliation(s)
- Mohamed Yusuf
- Department of Sport and Exercise Sciences, Musculoskeletal Science and Sports Medicine Research Centre, Manchester Metropolitan University, 99 Oxford Road, Manchester, M1 7EL, UK. .,Manchester Metropolitan University Institute of Sport, Manchester, UK.
| | - Gallin Montgomery
- Department of Sport and Exercise Sciences, Musculoskeletal Science and Sports Medicine Research Centre, Manchester Metropolitan University, 99 Oxford Road, Manchester, M1 7EL, UK.,Manchester Metropolitan University Institute of Sport, Manchester, UK
| | - Mark Hamer
- Institute of Sport, Exercise & Health, Division of Surgery & Interventional Science, University College London, 170 Tottenham Court Road, London, W1T 7HA, UK
| | - Jamie McPhee
- Department of Sport and Exercise Sciences, Musculoskeletal Science and Sports Medicine Research Centre, Manchester Metropolitan University, 99 Oxford Road, Manchester, M1 7EL, UK.,Manchester Metropolitan University Institute of Sport, Manchester, UK
| | - Rachel Cooper
- Department of Sport and Exercise Sciences, Musculoskeletal Science and Sports Medicine Research Centre, Manchester Metropolitan University, 99 Oxford Road, Manchester, M1 7EL, UK.,Manchester Metropolitan University Institute of Sport, Manchester, UK.,AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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13
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Kwon S, Menezes AMB, Ekelund U, Wehrmeister FC, Gonçalves H, da Silva BGC, Janz KF. Longitudinal change in physical activity and adiposity in the transition from adolescence to early adulthood: the 1993 Pelotas cohort study. Int J Behav Nutr Phys Act 2022; 19:83. [PMID: 35836186 PMCID: PMC9284823 DOI: 10.1186/s12966-022-01321-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 06/20/2022] [Indexed: 11/18/2022] Open
Abstract
Background In the current Physical Activity Guidelines (PAG) for moderate- and vigorous-intensity physical activity (MVPA), abrupt transition from ≥ 60 min/day [youth PAG] to ≥ 150 min/week (≥ 22 min/day on average) [adult PAG] during emerging adulthood is poorly justified. The aim of this study was to examine body fat mass changes according to whether meeting the youth and adult PAGs in late adolescence (age 18 years) to early adulthood (age 22 years). Methods The study sample included 2,099 participants (1,113 females) from the 1993 Pelotas (Brazil) Study. At ages 18 and 22 years, MVPA was measured using wrist-worn accelerometry and fat mass was measured using dual-energy X-ray absorptiometry. MVPA at age 18 was categorized into two groups: 0–59 or ≥ 60 min/day (no [N] or yes [Y] for meeting the youth recommendation, respectively). MVPA at age 22 was categorized into three groups: 0–21, 22–59, or ≥ 60 min/day (N, Y22, or Y60 for not meeting the adult recommendation, meeting the adult recommendation, or meeting the youth recommendation, respectively). The combination of these groups created six MVPA groups (N&N, N&Y22, N&Y60, Y&N, Y&Y22, and Y&Y60). Sex-specific multivariable linear regression analyses were conducted to estimate change in fat mass index (FMI) from age 18 to 22 years in the six MVPA groups. Results Among males, compared to Y&Y60 (FMI increase = 1.2 kg/m2 [95% CI = 1.0, 1.4]), Y&Y22 and Y&N had larger FMI increases (1.9 [1.6, 2.1] and 1.9 [1.2, 2.5], respectively). Among females, Y&Y60 and Y&Y22 had an equal FMI increase (1.6 [1.4, 1.9] for both groups), while Y&N had a larger FMI increase (2.4 [1.8, 3.0]). Conclusions These findings suggest that among those who were active in late adolescence, engaging in ≥ 22 min/day of MVPA in adulthood is associated with lower body fat gain for females, but not for males. Supplementary Information The online version contains supplementary material available at 10.1186/s12966-022-01321-0.
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Affiliation(s)
- Soyang Kwon
- Ann & Robert H. Lurie Children's Hospital of Chicago, 225 E Chicago Ave. Box 157, Chicago, IL, 60611, USA.
| | - Ana M B Menezes
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, R Marechal Deodoro, 1160 - 3rd floor,, Pelotas, RS, CEP 96020-220, Brazil
| | - Ulf Ekelund
- Department of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.,Department of Chronic Diseases, Norwegian Institute of Public Health, Postboks 4014 Ulleål Stadion, 0806, Oslo, Norway.,Norwegian Institute of Public Health, Oslo, Norway
| | - Fernando C Wehrmeister
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, R Marechal Deodoro, 1160 - 3rd floor,, Pelotas, RS, CEP 96020-220, Brazil
| | - Helen Gonçalves
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, R Marechal Deodoro, 1160 - 3rd floor,, Pelotas, RS, CEP 96020-220, Brazil
| | - Bruna Gonçalves C da Silva
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, R Marechal Deodoro, 1160 - 3rd floor,, Pelotas, RS, CEP 96020-220, Brazil
| | - Kathleen F Janz
- Department of Health and Human Physiology, University of Iowa, 102 E FH, Iowa City, 52242, USA
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14
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Staatz CB, Kelly Y, Lacey RE, Hardy R. Area-level and family-level socioeconomic position and body composition trajectories: longitudinal analysis of the UK Millennium Cohort Study. Lancet Public Health 2021; 6:e598-e607. [PMID: 34332672 PMCID: PMC8342403 DOI: 10.1016/s2468-2667(21)00134-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Inequalities in the trajectories of body composition in childhood and adolescence have been infrequently studied. Despite the importance of environmental factors in obesity development, little research has looked at area-level socioeconomic position, independent of family socioeconomic position. We aimed to assess how inequalities in body composition develop with age. METHODS The Millennium Cohort Study is a longitudinal study of 19 243 families who had a child born between 2000 and 2002 in the UK. Multilevel growth curve models were applied to examine change in fat mass index (FMI), fat free mass index (FFMI; using the Benn index), and fat mass to fat free mass ratio (FM:FFM), measured using Bioelectrical Impedance Analysis, from ages 7 years to 17 years by the Index of Multiple Deprivation (IMD) and household income at baseline. FINDINGS Inequalities in FMI and FM:FFM ratio are evident at age 7 years and widen with age. At age 17 years, adolescents in the most disadvantaged IMD group had FMI 0·57 kg/mB (B=Benn parameter; 95% CI 0·43 to 0·70) higher and FM:FFM ratio 0·037 (95% CI 0·026 to 0·047) higher compared with the most advantaged group. Disadvantaged socioeconomic position is associated with higher FFMI but is reversed in adolescence after adjustment for FMI. Inequalities were greater in girls at age 7 years (mean FMI 0·22 kg/mB; 95% CI 0·13 to 0·32) compared with boys of the same age (0·05 kg/mB; -0·04 to 0·15, p=0·3), but widen fastest in boys, especially for FMI, in which there was over an 11 times increase in the inequality from age 7 years of 0·05kg/mB (95% CI -0·04 to 0·15) to 0·62 kg/mB at 17 years (0·42 to 0·82). Inequalities for the IMD were similar to income, and persisted at age 17 years independent of family socioeconomic position. INTERPRETATION Childhood and adolescence is an important period to address inequalities in body composition, as they emerge and widen. Policies should consider FFM as well as FM, and inequalities in the environment. FUNDING Medical Research Council, Economic and Social Research Council.
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Affiliation(s)
- Charis Bridger Staatz
- Social Research Institute, Institute of Education, University College London, London, UK.
| | - Yvonne Kelly
- Department of Epidemiology and Public Health, University College London, London, UK
| | - Rebecca E Lacey
- Department of Epidemiology and Public Health, University College London, London, UK
| | - Rebecca Hardy
- Social Research Institute, Institute of Education, University College London, London, UK
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