A Vitamin Pattern Diet Is Associated with Decreased Risk of Gestational Diabetes Mellitus in Chinese Women: Results from a Case Control Study in Taiyuan, China

Table 3

The nutrient content in diet among subjects stratified by the quartile of vitamin factor score .

Nutrients	Cases		Controls
	Q1	Q4	Q1	Q4
One year before conception
Protein (g)
Dietary fiber (g)
Vitamins (mg)
Calcium (Ca) (mg)
Potassium (K) (mg)
The first trimester
Protein (g)
Dietary fiber (g)
Vitamins (mg)
Calcium (Ca) (mg)
Potassium (K) (mg)
The second trimester
Protein (g)
Dietary fiber (g)
Vitamins (mg)
Calcium (Ca) (mg)
Potassium (K) (mg)

For simplicity, only nutrient content in the first and last quartiles of vitamin pattern factor score is presented here. Vitamins including vitamin A, carotene, vitamin B2, vitamin B6, vitamin C, and folate.