Clinical Research
Copyright ©The Author(s) 2005.
World J Gastroenterol. Jul 14, 2005; 11(26): 4078-4084
Published online Jul 14, 2005. doi: 10.3748/wjg.v11.i26.4078
Table 3 Numbers of foods contributing to 29 nutrients with up to 90 cumulative % and 0.9 cumulative r2
Cumulative %
Cumulative r2
RuralUrbanCombinedRuralUrbanCombined
Energy495160332237
Protein798594512655
Fat2323251501117
Carbohydrate2629333877
Crude fiber656174741321
Cholesterol313637471012
Carotene23213847128
Retinol25303328755
Folic acid534959401319
Vitamin C382744521770
Vitamin E484554116516
Calcium9493104701930
Phosphorus8591102412851
Potassium1149912063361
Sodium13161614543
Magnesium8698109413158
Iron8494104452235
Zinc727886411544
Selenium73889682822
Copper76758891931
SFA2222361001014
MUFA1617217098
PUFA1816231385113
Oleic acid15151714268
Linoleic acid17151814358
Linolenic acid31285613612
Arachidonic acid (g)243253531717
EPA223251301723
DHA142936241312
Mean464858721430