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Does the ethnic density effect extend to obesity? A cross-sectional study of 415 166 adults in east London.
BMJ Open. 2019 06 01; 9(5):e024779.BO

Abstract

OBJECTIVES

To examine the prevalence of obesity by ethnic group and to examine the association between ethnic density and obesity prevalence.

DESIGN AND SETTING

Cross-sectional study utilising electronic primary care records of 128 practices in a multiethnic population of east London.

PARTICIPANTS

Electronic primary care records of 415 166 adults with a body mass index recorded in the previous 3 years.

OUTCOME MEASURES

(1) Odds of obesity for different ethnic groups compared with white British. (2) Prevalence of obesity associated with each 10% increase in own-group ethnic density, by ethnic group.

RESULTS

Using multilevel logistic regression models, we find that compared with white British/Irish males, the odds of obesity were significantly higher among black ethnic groups and significantly lower among Asian and white other groups. Among females, all ethnic groups except Chinese and white other were at increased odds of obesity compared with white British/Irish. There was no association between increasing ethnic density and obesity prevalence, except among black Africans and Indian females. A 10% increase in black ethnic density was associated with a 15% increase in odds of obesity among black African males (95% CI 1.07 to 1.24) and 18% among black African females (95% CI 1.08 to 1.30). Among Indian females, a 10% increase in Indian ethnic density was associated with a 7% decrease in odds of obesity (95% CI 0.88 to 0.99).

CONCLUSION

Wider environmental factors play a greater role in determining obesity than the ethnic composition of the area for most ethnic groups. Further research is needed to understand the mechanism through which increasing ethnic density is associated with increased odds of obesity among black Africans and decreased odds of obesity among Indian females.

Authors+Show Affiliations

Clinical Effectiveness Group, Queen Mary University of London, London, UK.Clinical Effectiveness Group, Queen Mary University of London, London, UK.Clinical Effectiveness Group, Queen Mary University of London, London, UK.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31154296

Citation

Sutaria, Shailen, et al. "Does the Ethnic Density Effect Extend to Obesity? a Cross-sectional Study of 415 166 Adults in East London." BMJ Open, vol. 9, no. 5, 2019, pp. e024779.
Sutaria S, Mathur R, Hull SA. Does the ethnic density effect extend to obesity? A cross-sectional study of 415 166 adults in east London. BMJ Open. 2019;9(5):e024779.
Sutaria, S., Mathur, R., & Hull, S. A. (2019). Does the ethnic density effect extend to obesity? A cross-sectional study of 415 166 adults in east London. BMJ Open, 9(5), e024779. https://doi.org/10.1136/bmjopen-2018-024779
Sutaria S, Mathur R, Hull SA. Does the Ethnic Density Effect Extend to Obesity? a Cross-sectional Study of 415 166 Adults in East London. BMJ Open. 2019 06 1;9(5):e024779. PubMed PMID: 31154296.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Does the ethnic density effect extend to obesity? A cross-sectional study of 415 166 adults in east London. AU - Sutaria,Shailen, AU - Mathur,Rohini, AU - Hull,Sally A, Y1 - 2019/06/01/ PY - 2019/6/3/entrez PY - 2019/6/4/pubmed PY - 2020/5/10/medline KW - body mass index KW - ethnic density KW - obesity SP - e024779 EP - e024779 JF - BMJ open JO - BMJ Open VL - 9 IS - 5 N2 - OBJECTIVES: To examine the prevalence of obesity by ethnic group and to examine the association between ethnic density and obesity prevalence. DESIGN AND SETTING: Cross-sectional study utilising electronic primary care records of 128 practices in a multiethnic population of east London. PARTICIPANTS: Electronic primary care records of 415 166 adults with a body mass index recorded in the previous 3 years. OUTCOME MEASURES: (1) Odds of obesity for different ethnic groups compared with white British. (2) Prevalence of obesity associated with each 10% increase in own-group ethnic density, by ethnic group. RESULTS: Using multilevel logistic regression models, we find that compared with white British/Irish males, the odds of obesity were significantly higher among black ethnic groups and significantly lower among Asian and white other groups. Among females, all ethnic groups except Chinese and white other were at increased odds of obesity compared with white British/Irish. There was no association between increasing ethnic density and obesity prevalence, except among black Africans and Indian females. A 10% increase in black ethnic density was associated with a 15% increase in odds of obesity among black African males (95% CI 1.07 to 1.24) and 18% among black African females (95% CI 1.08 to 1.30). Among Indian females, a 10% increase in Indian ethnic density was associated with a 7% decrease in odds of obesity (95% CI 0.88 to 0.99). CONCLUSION: Wider environmental factors play a greater role in determining obesity than the ethnic composition of the area for most ethnic groups. Further research is needed to understand the mechanism through which increasing ethnic density is associated with increased odds of obesity among black Africans and decreased odds of obesity among Indian females. SN - 2044-6055 UR - https://www.unboundmedicine.com/medline/citation/31154296/Does_the_ethnic_density_effect_extend_to_obesity_A_cross_sectional_study_of_415_166_adults_in_east_London_ DB - PRIME DP - Unbound Medicine ER -