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. 2021 Sep 27;21:656. doi: 10.1186/s12884-021-04101-z

Table 1.

Characteristics of Patients According to the Groups. PPROM, preterm premature rupture of the membranes; Group I, patients with diagnosed histological chorioamnionitis; Group II, patients without diagnosed histological chorioamnionitis

Characteristics Group I (n = 52) Group II (n = 85) p-value
Age of mother (years) 31 (28–34) 31 (27–35) 0.89
Primigravida, n (%) 18 (34.6) 36 (42.4) 0.34
Multigravida, n (%) 34 (65.4) 49 (57.6) 0.34
Primiparous, n (%) 23 (44.2) 46 (54.1) 0.26
Multiparous, n (%) 29 (55.8) 39 (45.9) 0.26
Gestational age at birth (weeks) 32 (27–34) 33 (31–34) 0.06
Birthweight (g) 1770 (1170–2203) 1925 (1510–2310) 0.12
Apgar score < 7 at 5 min, n (%) 6 (11.5) 1 (1.2) 0.01
Umbilical cord arterial pH 7.35 (7.29–7.4) 7.32 (7.26–7.37) 0.08
Clinical chorioamnionitis, n (%) 4 (7.7) 1 (1.2) 0.05
Latency between PPROM and delivery (hours) 148.3 (91.1-246.5) 93.5 (65.1-166.05) 0.007
Time from steroid administration to delivery (hours) 134.5 (78.05–233) 89 (52.01–152) 0.008