Table 2. Factor-loading matrix for 5 factors representing major nutrient patterns in a case-control study of cataract in Iran.

Parameters	Component
	1	2	3	4	5
Vitamin B1 (thiamine) (mg)	0.637
Vitamin B3 (nicotinic acid) (mg)	0.614
Carbohydrates (g)	0.893
Proteins (g)	0.847		0.408
Zinc (mg)	0.643		0.374
Vitamin B6 (pyridoxine) (mg)	0.810			0.394
Sodium (mg)	0.989
Vitamin B2 (riboflavin) (mg)	0.688		0.651
Vitamin H (Biotin) (mg)	0.576		0.373	0.421
Oleic acid, 18:1		0.982
Monounsaturated fats (g)		0.979
Polyunsaturated fats (g)		0.966
Linoleic acid, 18:2		0.962
Trans fats (g)		0.949
Linolenic acid, 18:3		0.877
Vitamin E (mg)		0.759
Saturated fats (g)		0.705	0.476
Vitamin B12 (pyridoxine) (mg)			0.761
Vitamin D (µg)			0.698
Cholesterol (mg)	0.388		0.689
Calcium (mg)	0.603		0.622
Beta carotene (mg)				0.935
Alfa carotene (mg)				0.811
Vitamin A (mg)			0.484	0.763
Vitamin C (mg)				0.651
EPA 21:5 (g)					0.988
DHA 22:6 (g)					0.988

n=295