Table 4

Food, energy and iron intake in cases and controls (median (lower quartile, upper quartile))

Food and nutrient intakeCases (n=1004)Controls (n=1025)p Value*
Staple food† (g)155.6 (114.4, 320.8)155.6 (111.1, 325.0)0.875
Animal food‡ (g)22.2 (0, 50.8)22.2 (0, 55.6)0.955
Soy food§ (g)0.5 (0.3, 26.7)5.6 (0.4, 27.8)0.048
Vegetable (g)150.0 (50.8, 283.3)150.0 (44.4, 281.7)0.982
Fruit (g)14.8 (4.9, 41.7)15.0 (5.5, 41.7)0.876
Pure energy food¶ (g)19.4 (13.9, 37.2)18.0 (13.9, 33.3)0.163
DBI_LBS49 (43, 53)49 (43, 53)0.490
Total energy intake (MJ)7.5 (5.8, 9.0)7.5 (5.7, 9.1)0.641
Protein intake (g)46.1 (34.1, 60.8)46.9 (34.0, 60.7)0.387
Carbohydrate intake (g)273.2 (208.6, 326.8)274.8 (212.3, 333.1)0.739
Fat intake (g)54.0 (39.3, 68.4)52.8 (38.1, 67.9)0.412
Iron intake (mg)17.0 (13.7, 22.6)17.0 (13.4, 21.6)0.982
  • *p Value by median two-sample test.

  • †Staple food: containing rice, wheat and other cereals, potatoes.

  • ‡Animal food: containing red meats, poultry, fish, eggs and milk.

  • §Soy food: dry beans and bean products (ie, tofu, soymilk), calculated by dry soybean weight.

  • ¶Pure energy food: containing sugar, alcohol and edible oil.

  • DBI_LBS, dietary balance index of lower balance score.