Table 3. P-values of F-test on type III sum of squares estimate.

Variable		PC1			PC2			PC3			PC4
	DF#	Partial R2	%	P value	Partial R2	%	P value	Partial R2	%	P value	Partial R2	%	P value
Log(Energy)†	1	0.043	4.35	<0.001	0.0353	3.53	<0.001	0.010	1.04	<0.001	0.037	3.66	<0.001
Age‡	1	0.0002	0.02	<0.001	0.0086	0.86	<0.001	0.0001	0.01	<0.001	0.001	0.08	<0.001
BMI	1	0.0016	0.16	<0.001	0.0052	0.52	<0.001	0.00005	0.01	<0.001	0.005	0.55	<0.001
Smoking Status	3	0.0100	1.00	<0.001	0.0013	0.13	<0.001	0.001	0.10	<0.001	0.001	0.14	<0.001
Sex	1	0.010	0.96	<0.001	0.0184	1.84	<0.001	0.003	0.34	<0.001	0.001	0.07	<0.001
Education level	5	0.0038	0.38	<0.001	0.0098	0.98	<0.001	0.0002	0.02	<0.001	0.0003	0.03	<0.001
Physical activity	4	0.0012	0.12	<0.001	0.003	0.28	<0.001	0.00005	0.005	<0.001	0.002	0.18	<0.001
Country/Center	10	0.2478	24.78	<0.001	0.1351	13.51	<0.001	0.237	23.68	<0.001	0.122	12.20	<0.001

*The scores had means of 0 but are standardized to unit variance; PC scores calculated on the country-specific FFQ derived intake levels of 23 nutrients, n = 477,312.

^†10 units increase.

^‡10 years increase.

^#Degree of Freedom.