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The Relationship between Generalized and Abdominal Obesity with Diabetic Kidney Disease in Type 2 Diabetes: A Multiethnic Asian Study and Meta-Analysis

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Singapore Eye Research Institute, Singapore National Eye Centre, Singapore 169856, Singapore
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Duke-NUS Medical School, Singapore 169857, Singapore
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Singapore National Eye Centre, Singapore 168751, Singapore
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Department of Nephrology, University Medicine Cluster, National University Health System, Singapore 119074, Singapore
*
Author to whom correspondence should be addressed.
Nutrients 2018, 10(11), 1685; https://doi.org/10.3390/nu10111685
Received: 26 September 2018 / Revised: 29 October 2018 / Accepted: 1 November 2018 / Published: 5 November 2018
This study examined the associations of body mass index (BMI), waist circumference (WC), waist-hip ratio (WHR) and waist-height ratio (WHtR) with diabetic kidney disease (DKD) in a clinical sample of Asian patients with type 2 diabetes (T2DM); substantiated with a meta-analysis of the above associations. We recruited 405 patients with T2DM (mean (standard deviation (SD)) age: 58 (7.5) years; 277 (68.4%) male; 203 (50.1%) with DKD) from a tertiary care centre in Singapore. DKD was defined as urinary albumin-creatinine ratio >3.3 mg/mmoL and/or estimated glomerular filtration rate <60 mL/min/1.73 m2. All exposures were analysed continuously and categorically (World Health Organization cut-points for BMI and WC; median for WHR and WHtR) with DKD using stepwise logistic regression models adjusted for traditional risk factors. Additionally, we synthesized the pooled odds ratio of 18 studies (N = 19,755) in a meta-analysis of the above relationships in T2DM. We found that overweight and obese persons (categorized using BMI) were more likely to have DKD compared to under/normal weight individuals, while no associations were found for abdominal obesity exposures. In meta-analyses however, all obesity parameters were associated with increased odds of DKD. The discordance in our abdominal obesity findings compared to the pooled analyses warrants further validation via longitudinal cohorts. View Full-Text
Keywords: obesity; body mass index; waist-hip ratio; waist circumference; waist-height ratio; meta-analysis; diabetic kidney disease obesity; body mass index; waist-hip ratio; waist circumference; waist-height ratio; meta-analysis; diabetic kidney disease
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Man, R.E.K.; Gan, A.T.L.; Fenwick, E.K.; Gupta, P.; Wong, M.Y.Z.; Wong, T.Y.; Tan, G.S.W.; Teo, B.W.; Sabanayagam, C.; Lamoureux, E.L. The Relationship between Generalized and Abdominal Obesity with Diabetic Kidney Disease in Type 2 Diabetes: A Multiethnic Asian Study and Meta-Analysis. Nutrients 2018, 10, 1685.

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