Table 2.

Association of individual biomarkers with subsequent preterm delivery

Biomarker	Test cutoff
	75th percentile			85th percentile			90th percentile
	cutoff, ng/ml	OR	95% CI	cutoff, ng/ml	OR	95% CI	cutoff, ng/ml	OR	95% CI
MIF	9.2	3.5∗	1.8-6.7	10.3	3.3∗	1.6-6.9	12.6	2.8∗	1.2-6.5
TNF	4.9	2.4∗	1.3-4.7	5.5	3.2∗	1.5-6.7	6.0	3.1∗	1.4-7.2
IL-6	3.1	1.5	0.7-2.9	4.1	2.3∗	1.1-5.0	5.7	2.5∗	1.3-4.8
Il-10	0.655	2.3∗	1.2-4.5	1.925	3.0∗	1.4-6.3	3.816	4.0∗	1.8-9.1
CRH bound	62,000	2.4∗	1.2-4.6	124,800	2.7∗	1.3-5.7	189,000	2.3	1.0-5.5
CRH total	63,000	3.2∗	1.7-6.2	140,400	2.7∗	1.3-5.7	227,800	2.1	0.9-5.1
CRP	5,667.4	1.9∗	1.0-3.7	7,424.1	2.3∗	1.1-4.8	9,384.6	2.3∗	1.0-5.5
Cortisol	1,810.0	1.2	0.6-2.3	2,015.6	2.1∗	1.0-4.5	2,369.6	2.3∗	1.0-5.5

Cutoffs based on control (term delivery) mothers. OR = Odds ratio; 95% CI = 95% confidence intervals.

^∗Significant values.