Table 3.

Results of multivariate analysis of variance and linear regression of platelet sulfotransferase isoform 1A1 (SULT1A1) activity (nmol/min/mg protein) with genetic predictors among Japanese subjects^a

Variable	n (%)	Partial sum of square	Partial R2	β coefficientb	P
638 G > A (rs9282861)
GG	78 (80.4)			1.21	0.17
AA/AG	19 (19.6)	1.19	0.04	1.00c
Copy number
2	63 (65)			0.64	0.02
3	25 (25.8)			0.91	0.65
≥4	9 (9.2)	3.07	0.10	1.00c
Total model SS		29.76

Notes:

^aModels with natural log of SULT1A1 activity as dependent variable and adjusted for demographics;

^bcoefficient transformed back to original scale;

^creference category. Bold text indicates the significance of the association with phenotype.

Abbreviation: SS, sum of square.