Singapore Med J 2013; 54(1) : 58 E r r atu m Prevalence of glucose intolerance, and associated antenatal and historical risk factors among Malaysian women with a history of gestational diabetes mellitus Chew W F, Rokiah P, Chan S P, Che e S S , Le e LF, Chan Y M Singapore Med J 2012; 53(12): 814-820 On page 815, Methods section, paragraph 2, lines 9-11, the correct sentence should be, "Therefore, the formula used for this study should be n = [1.96 2 × (0.126 × 0.874)]/ 0.05 2 , and the sample size needed was 169."
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