Body mass index stratified meta-analysis of genome-wide association studies of polycystic ovary syndrome in women of European ancestry.

The lean group demonstrates a greater number of highly significant p -values than the overweight and obese groups, likely due to the comparatively larger sample size.

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The SNP rs12000707 also demonstrated nominally significant associations in the overweight and obese groups (Supplementary Table 1 ), with meta-analysis of the 3 BMI strata suggesting that there is no significant heterogeneity between the groups (het P = 0.56).

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