Table 2 Factor loadings for the four major dietary patterns derived from principal components analysis with orthogonal rotation.

Dietary patterns	Factor loading coefficient	Cumulative variance explained (%)
Food
Vegetables–fruits pattern
Vegetables	0.66	12.33
Beans	0.63
Mushrooms	0.61
Tubers	0.61
Fruits	0.58
Coarse cereal	0.53
Seaweed	0.43
Wheat	0.42
Nuts	0.32
Dairy products	0.27
Rice–meat pattern
Red Meat	0.76	24.62
White Rice	0.63
Poultry	0.61
Animal organ meat	0.48
Condiments	0.35
Eggs	0.28
Beans	0.34
Seafood–eggs pattern
Eggs	0.67	33.03
Seafood	0.46
Dairy products	0.35
Nuts	0.31
Fruits	0.31
Tea	0.25
Beverages	−0.25
Sweet–fast food pattern
Fast food	0.75	39.1
Beverages	0.7
Dessert	0.63
Alcoholic beverages	0.34
White Rice	−0.25
Dairy products	−0.29

Factor loadings with absolute values ≥±0.25 were listed in the table among 21 food groups.

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