期刊
BMJ-BRITISH MEDICAL JOURNAL
卷 352, 期 -, 页码 -出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/bmj.i582
关键词
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资金
- Diabetes Research and Wellness Foundation
- Medical Research Council [MR/M005070/1]
- Wellcome Trust [WT097835MF]
- European Research Council [SZ-245 50371-GLUCOSEGENES-FP7-IDEAS-ERC, 323195]
- Wellcome Trust
- Royal Society [104150/Z/14/Z]
- National Institutes of Health [R01 DK075787]
- Endocrine Society's Endocrine Scholars Award - Lilly USA, LLC
- European Research Council (ERC) [323195] Funding Source: European Research Council (ERC)
- Medical Research Council [MR/M005070/1, G0601261, G0500070, MC_qA137853] Funding Source: researchfish
- MRC [G0601261, G0500070] Funding Source: UKRI
OBJECTIVE To determine whether height and body mass index (BMI) have a causal role in five measures of socioeconomic status. DESIGN Mendelian randomisation study to test for causal effects of differences in stature and BMI on five measures of socioeconomic status. Mendelian randomisation exploits the fact that genotypes are randomly assigned at conception and thus not confounded by non-genetic factors. SETTING UK Biobank. PARTICIPANTS 119 669 men and women of British ancestry, aged between 37 and 73 years. MAIN OUTCOME MEASURES Age completed full time education, degree level education, job class, annual household income, and Townsend deprivation index. RESULTS In the UK Biobank study, shorter stature and higher BMI were observationally associated with several measures of lower socioeconomic status. The associations between shorter stature and lower socioeconomic status tended to be stronger in men, and the associations between higher BMI and lower socioeconomic status tended to be stronger in women. For example, a 1 standard deviation (SD) higher BMI was associated with a 210 pound ((sic)276; $300; 95% confidence interval 84 pound to 420; pound P= 6x10(-3)) lower annual household income in men and a 1890 pound (1680 pound to 2100; pound P=6x10(-15)) lower annual household income in women. Genetic analysis provided evidence that these associations were partly causal. A genetically determined 1 SD (6.3 cm) taller stature caused a 0.06 (0.02 to 0.09) year older age of completing full time education (P=0.01), a 1.12 (1.07 to 1.18) times higher odds of working in a skilled profession (P=6x10(-7)), and a 1130 pound (680 pound to 1580) pound higher annual household income (P=4x10(-8)). Associations were stronger in men. A genetically determined 1 SD higher BMI (4.6 kg/m(2)) caused a 2940 pound (1680 pound to 4200; pound P=1x10(-5)) lower annual household income and a 0.10 (0.04 to 0.16) SD (P=0.001) higher level of deprivation in women only. CONCLUSIONS These data support evidence that height and BMI play an important partial role in determining several aspects of a person's socioeconomic status, especially women's BMI for income and deprivation and men's height for education, income, and job class. These findings have important social and health implications, supporting evidence that overweight people, especially women, are at a disadvantage and that taller people, especially men, are at an advantage.
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