Table 7. P value of tests for population stratification and within-family association between VDR, ESR1 genotypes and obesity phenotypes; BMI, total fat mass, total lean mass and PFM values were adjusted by age. Bold indicates significant P values (P<0.05).

	ApaI	FokI	CDX2	PvuII	XbaI
Tests of population stratification
BMI	0.442	0.761	0.114	0.435	0.634
Fat mass	0.195	0.919	0.329	0.080	0.008
Lean mass	0.960	0.375	0.379	0.397	0.456
PFM	0.306	0.903	0.595	0.346	0.099
Test of total association
BMI	0.851	0.900	0.194	0.079	0.544
Fat mass	0.165	0.069	0.001	0.009	0.900
Lean mass	0.566	0.120	0.700	0.144	0.541
PFM	0.082	0.030	0.003	0.047	0.807
Test of within-family association
BMI	0.553	0.742	0.046	0.129	0.889
Fat mass	0.059	0.193	0.004	0.002	0.049
Lean mass	0.738	0.089	0.668	0.104	0.335
PFM	0.067	0.120	0.020	0.039	0.158
P 1000 permutation of within-family association
BMI	0.536	0.741	0.038	0.129	0.888
Fat mass	0.110	0.290	0.012	0.013	0.127
Lean mass	0.748	0.063	0.626	0.108	0.354
PFM	0.049	0.087	0.009	0.023	0.153