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Table 4 Association analyses of extremely discordant sibling pairs.

From: FTO gene SNPs associated with extreme obesity in cases, controls and extremely discordant sister pairs

Obese Thin Z P-value
rs1421085 TT TC CC   
TT 15 6 0 2.14 p = 0.032
TC 14 32 2   
CC 2 7 8   
rs17817449 TT TG GG   
TT 18 6 0 3.57 p = 3.6 × 10-4
TG 13 34 1   
GG 2 11 8   
rs9939609 TT TA AA   
TT 18 7 0 3.09 p = 0.002
TA 14 30 1   
AA 2 12 8