Factor

Odd Ratio

95% CI

(N = 73)

p -value

History of PTB

11.1

0.76 - 400

0.079

GW on admission (≤23 weeks)

5.8

0.92 - 57.8

0.062

AF-IL-8 (≥2.4 ng/mL)

5.7

0.90 - 61.1

0.065

CM-IL-8 (≥803.5 ng/mL)

21.3

3.0 - 260

0.002

CL on admission (≤15 mm)

17.1

1.9 - 517

0.008