Table 2. BMI, waist circumference and body fat by genotype for three SNPs of FFAR1.

	rs2301151					rs1573611					rs16970264
				Difference	P				Difference	P				Difference	P
	AA	AG	GG			TT	TC	CC			AA	AG	GG
BMI (kg/m2)
mean	28.71	29.41	30.01	0.67	0.11	25.61	28.86	29.31	1.06	0.009	28.53	29.53	28.85	0.55	0.41
SE	0.32	0.35	1.67			0.85	0.41	0.31			2.25	0.60	0.26
n	233	156	16			20	138	247			3	47	350
Waist circumference (cm)
mean	98.60	98.57	98.09	0.27	0.79	93.53	98.89	98.53	1.29	0.19	100.23	100.57	97.95	2.09	0.20
SE	0.85	0.95	2.72			3.02	1.09	0.76			4.41	1.68	0.66
n	233	156	16			20	138	247			3	47	350
Body fat (%)
mean	33.19	34.77	37.34	1.11	0.03	28.05	33.30	34.68	1.53	0.002	28.50	35.02	33.88	−0.58	0.48
SE	0.56	0.69	1.99			1.52	0.71	0.55			3.70	1.31	0.46
n	228	155	16			20	136	244			3	47	345

Data are presented as mean, SEM, n stratified by genotype for each of the three SNPs. For each genotype the risk allele was defined as the BMI-increasing allele and the data are presented as the additive model. The differences in trait by genotype were assessed by linear regression analysis coding the number of risk alleles as 0,1,2. The P-value for the regression is presented and is in bold when reaching significance by the FDR-controlling procedure q* = 0.05. The recessive and dominant models defined according to the risk allele are shown in Supplementary Table S1.