Table 4. Logistic regression results for maternal single locus allele frequencies among cases and controls and association with preterm labor.

SNP	Minor allele	MAF Term	MAF PTL	aOR (95% CI)	P value
rs2853690	A	0.26	0.46	2.24 (1.64–3.06)	2.32E-05
rs2736114	T	0.27	0.26	0.97 (0.71–1.34)	0.8897
rs2075786	A	0.37	0.39	0.86 (0.65–1.14)	0.3756
rs4246742	A	0.15	0.17	0.87 (0.60–1.25)	0.5247
rs4975605	A	0.47	0.48	1.21 (0.91–1.60)	0.2666
rs10069690	T	0.27	0.27	0.97 (0.71–1.32)	0.859
rs2242652	A	0.19	0.20	1.27 (0.90–1.78)	0.261
rs2853677	G	0.45	0.42	0.84 (0.65–1.10)	0.2912
rs2853676	T	0.23	0.29	0.91 (0.68–1.22)	0.5973
rs2853672	C	0.51	0.46	0.75 (0.56–1.01)	0.1062

Model adjusted for maternal weight, education, income, smoking status, and insurance status.

SNP: single nucleotide polymorphism, MAF: minor allele frequency, PTL: preterm labor, aOR: adjusted odds ratio, CI: confidence interval