Table 3. Multivariate logistic regression analysis for associations between vaginal fluid creatinine and study groups. adjusted for patients characteristics

Factors	Unit	Rude OR	Adjusted OR1)	p1)
Mother age	Year	0.98 (0.95–1.01)	0.96 (0.89–1.04)	0.35
IUGR	Yes/No	0.55 (0.23–1.28)	2.01 (0.25–16.26)	0.51
Diabetes	Yes/No	0.51 (0.33–0.77)	0.86 (0.34–2.21)	0.76
Urinary incontinence	Yes/No	0.52 (0.29–0.92)	0.01 (0–0.19)	0.001
Term pregnancy (groups)	1/0	0.69 (0.48–0.97)	1.12 (0.43–2.91)	0.82
	≥2/0	0.57 (0.34–0.95)	1.95 (0.53–7.17)	0.31
Gestational age (weeks – groups)	34–41/24–33	1 (0-61-1-63)	0.42 (0.11–1.65)	0.21
Uterus contractions	Yes/No	1.66 (1.21–2.29)	0.8 (0.3–2.1)	0.65
Cervix status	Closed/ Dilated	6.08 (4.26–8.68)	7.59 (2.76–20.88)	<0.001
Creatinine (Log)	1 Log (Creatinine+0.1)	479 (150–1,529)	1,261 (257–6,178)	<0.001

Multivariate logistic regression.
OR, odds ratio.