We examined associations between nine previously reported FTO single nucleotide polymorphisms (SNPs) with obesity, type 2 diabetes, and related traits in 4,298 participants (2,919 Chinese, 785 Malays, and 594 Asian Indians) from the 1998 Singapore National Health Survey (NHS98) and 2,996 Malays from the Singapore Malay Eye Study (SiMES).Īll nine SNPs exhibited strong linkage disequilibrium (r(2) = 0.6-0.99), and minor alleles were associated with obesity in the same direction as previous studies with effect sizes ranging from 0.42 to 0.68 kg/m(2) (P < 0.0001) in NHS98 Chinese, 0.65 to 0.91 kg/m(2) (P < 0.02) in NHS98 Malays, and 0.52 to 0.64 kg/m(2) (P < 0.0001) in SiMES Malays after adjustment for age, sex, smoking, alcohol consumption, and exercise. The aim of this study was to examine the effects of FTO variants on obesity and type 2 diabetes in Southeast Asian populations. Association between genetic variants at the FTO locus and obesity has been consistently observed in populations of European ancestry and inconsistently in non-Europeans.
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