表 4.

围受孕期服用营养补充剂的依从性得分与早产的关系

Association between compliance score of taking nutritional supplements in the peri-conceptional period and preterm delivery

Compliance score	Preterm delivery
	% (n/N)	cOR (95%CI)	aOR (95%CI)*
* The confounders include maternal age, ethnicity, education levels, occupation, pre-pregnant body mass index, parity, gestational diabetes, gestational hypertension, delivery year, and parental household registration. Abbreviations as in Table 3.
FA
0	5.58% (55/986)	1	1
1	6.62% (112/1 691)	1.20 (0.86-1.67)	1.19 (0.84-1.70)
2	5.98% (15/251)	1.08 (0.60-1.94)	0.99 (0.53-1.85)
3	6.17% (130/2 108)	1.11 (0.80-1.54)	1.08 (0.76-1.54)
MMFA
0	5.58% (55/986)	1	1
1	5.23% (179/3 424)	0.93 (0.68-1.27)	0.96 (0.69-1.34)
2	7.33% (20/273)	1.34 (0.79-2.27)	1.36 (0.78-2.36)
3	5.24% (103/1 964)	0.94 (0.67-1.31)	0.86 (0.59-1.24)