Body mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impacts

<br/><strong>Background: </strong>Body mass index (BMI) cut-off values (≥25 and ≥30) that predict diabetes risk have been well validated in Caucasian populations but less so in Asian populations. We aimed to determine the BMI threshold associated with increased type 2 diabetes (T2D...

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Główni autorzy: Papier, K, D'Este, C, Bain, C, Banwell, C, Seubsman, S-A, Sleigh, A, Jordan, S
Format: Journal article
Język:English
Wydane: Springer Nature 2017
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author Papier, K
D'Este, C
Bain, C
Banwell, C
Seubsman, S-A
Sleigh, A
Jordan, S
author_facet Papier, K
D'Este, C
Bain, C
Banwell, C
Seubsman, S-A
Sleigh, A
Jordan, S
author_sort Papier, K
collection OXFORD
description <br/><strong>Background: </strong>Body mass index (BMI) cut-off values (≥25 and ≥30) that predict diabetes risk have been well validated in Caucasian populations but less so in Asian populations. We aimed to determine the BMI threshold associated with increased type 2 diabetes (T2DM) risk and to calculate the proportion of T2DM cases attributable to overweight and obesity in the Thai population.<br/><strong>Methods: </strong>Participants were those from the Thai Cohort Study who were diabetes-free in 2005 and were followed-up in 2009 and 2013 (n = 39,021). We used multivariable logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the BMI-T2DM association. We modelled non-linear associations using restricted cubic splines. We estimated population attributable fractions (PAF) and the number of T2DM incident cases attributed to overweight and obesity. We also calculated the impact of reducing the prevalence of overweight and obesity on T2DM incidence in the Thai population.<br/><strong>Results: </strong>Non-linear modelling indicated that the points of inflection where the BMI-T2DM association became statistically significant compared to a reference of 20.00 kg/m² were 21.60 (OR = 1.27, 95% CI 1.00–1.61) and 20.03 (OR = 1.02, 95% CI 1.02–1.03) for men and women, respectively. Approximately two-thirds of T2DM cases in Thai adults could be attributed to overweight and obesity. Annually, if prevalent obesity was 5% lower, ~13,000 cases of T2DM might be prevented in the Thai population.<br/><strong>Conclusions: </strong>A BMI cut-point of 22 kg/m², one point lower than the current 23 kg/m², would be justified for defining T2DM risk in Thai adults. Lowering obesity prevalence would greatly reduce T2DM incidence.
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spelling oxford-uuid:fa5db78f-42eb-4fca-87b7-975a1ed48bc82022-03-27T13:05:15ZBody mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impactsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fa5db78f-42eb-4fca-87b7-975a1ed48bc8EnglishSymplectic Elements at OxfordSpringer Nature2017Papier, KD'Este, CBain, CBanwell, CSeubsman, S-ASleigh, AJordan, S<br/><strong>Background: </strong>Body mass index (BMI) cut-off values (≥25 and ≥30) that predict diabetes risk have been well validated in Caucasian populations but less so in Asian populations. We aimed to determine the BMI threshold associated with increased type 2 diabetes (T2DM) risk and to calculate the proportion of T2DM cases attributable to overweight and obesity in the Thai population.<br/><strong>Methods: </strong>Participants were those from the Thai Cohort Study who were diabetes-free in 2005 and were followed-up in 2009 and 2013 (n = 39,021). We used multivariable logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the BMI-T2DM association. We modelled non-linear associations using restricted cubic splines. We estimated population attributable fractions (PAF) and the number of T2DM incident cases attributed to overweight and obesity. We also calculated the impact of reducing the prevalence of overweight and obesity on T2DM incidence in the Thai population.<br/><strong>Results: </strong>Non-linear modelling indicated that the points of inflection where the BMI-T2DM association became statistically significant compared to a reference of 20.00 kg/m² were 21.60 (OR = 1.27, 95% CI 1.00–1.61) and 20.03 (OR = 1.02, 95% CI 1.02–1.03) for men and women, respectively. Approximately two-thirds of T2DM cases in Thai adults could be attributed to overweight and obesity. Annually, if prevalent obesity was 5% lower, ~13,000 cases of T2DM might be prevented in the Thai population.<br/><strong>Conclusions: </strong>A BMI cut-point of 22 kg/m², one point lower than the current 23 kg/m², would be justified for defining T2DM risk in Thai adults. Lowering obesity prevalence would greatly reduce T2DM incidence.
spellingShingle Papier, K
D'Este, C
Bain, C
Banwell, C
Seubsman, S-A
Sleigh, A
Jordan, S
Body mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impacts
title Body mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impacts
title_full Body mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impacts
title_fullStr Body mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impacts
title_full_unstemmed Body mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impacts
title_short Body mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impacts
title_sort body mass index and type 2 diabetes in thai adults defining risk thresholds and population impacts
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