Ancestry informative markers and selected single nucleotide polymorphisms in immunoregulatory genes on preterm labor and preterm premature rupture of membranes: a case control study

Table 8 Logistic regression model comparing the PTL and control groups

Variable	Control (n = 201)	PTL (n = 136)	OR (CI)	p
European ancestry	0.64 (0.53–0.75)	0.70 (0.58–0.80)	13.48 (2.84–64.05)	0.001
African ancestry	0.18 (0.10–0.34)	0.14 (0.08–0.28)	0.10 (0.02–0.53)	0.007
Smoking	11.9 (24/201)	23.3 (31/133)	2.35 (1.25–4.44)	0.008

PTL preterm labor, OR odds ratio, CI confidence interval. Ancestry presented as median (25–75 %), smoking as % (fraction)

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