Table 4.

Significant predictive factors for preterm premature rupture of membranes based on logistic regression test results

Factors	P-value	Adjusted OR (95% CI)
Low socioeconomic status	0.87	1.12 (0.25–4.84)
Presence of history of preterm birth	0.01a)	7.93 (1.51–41.72)
Plasma ascorbic acid at the time of enrolment	0.53	2.13 (0.19–23.48)
Plasma IL-6 at the time of enrolment	0.00a)	1.41 (1.11–1.80)
No. of patients with low serum ascorbic acid at the time of enrolment	0.50	0.38 (0.03–6.68)
No. of patients with high IL-6 at the time of enrolment	0.59	2.45 (0.07–50.63)

IL, interleukin; OR, odds ratio; CI, confidence interval.

^a)Significant P-value.