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Table 3 Comparison-maternal risk factors

From: Suspected clinical chorioamnionitis with peak intrapartum temperature <380C: the prevalence of confirmed chorioamnionitis and short term neonatal outcome

 

Comparison -Group (1) Vs. Group (2)

 

Total patients N =415

Group (1) PIT 37.6 to 37.90C N = 203

Group (2) PIT 380C or more N=212

Mean difference (95% CI)

Odds ratio (95% CI)

P-value

Mean Maternal age in years (SD)

28.42(4.57)

28.16 (4.63)

28.67(4.5)

-0.503 (-1.38 to 0.38)

 

0.263

Mean Gestational age in weeks (SD)

38.99(1.82)

38.8 (2.06)

39.13(1.54)

-0.285 (-0.64 to 0.65)

 

0.113

Gestational age <37 weeks N (%)

26 (6.3%)

17 (8.4%)

9 (4.2%)

2.06 (0.89 to 4.74)

 

0.083

Nulliparity N (%)

298 (71.8%)

156(76.8%)

142 (67%)

 

1.64 (1.06 to 2.53)

0.026

GBS carrier N (%)

36/174 (20.7%)

16/86 (18.6%)

20/88 (22.7%)

 

0.78

(0.37 to 1.62)

0.502

Epidural analgesia N (%)

343(82.7%)

172 (84.7%)

171 (81%)

 

1.29

(0.78 to 2.17)

0.320

SROM N (%)

158(38.1%)

85(41.9%)

73 (34.4%)

 

1.37

(0.92 to 2.04)

0.119

Mean ROM duration in hours (SD)

18.18 (24.2)

21.51(28.65)

15(18.5)

6.51 (1.83 to 11.18)

 

0.007

ROM 18 hrs or more N (%)

131(31.6%)

74 (36.5%)

57(26.9%)

 

1.56

(1.03 -2.57)

0.036

Induction N (%)

149(35.9%)

77 (37.9%)

72(34%)

 

1.19

(0.79 to 1.78)

0.400

Regular contractions at the time of admission N (%)

144(34.7%)

62(30.5%)

82(38.7%)

 

0.69

(0.46 to 1.05)

0.082

Mean duration of labor (SD) in hours

13.44(8.49)

13.53(8.08)

13.34(8.91)

0.186

(-1.46 to 1.84)

 

0.824

Duration of labor>15 hours N (%)

143(33.7%)

72 (35.5%)

68 (32.1%)

 

1.16

(0.78 to 1.75)

0.465

Mean no of vaginal examinations (SD)

5.79(2.42)

5.97(2.44)

5.63(2.4)

0.338

(-0.129to0.80)

 

0.155

8 or more vaginal examinations N (%)

88(21.4%)

48 (23.6%)

40(18.9%)

 

1.33

(0.83 to 2.14)

0.234

MSAF N (%)

105(25.3%)

50 (24.6%)

55(25.9%)

 

0.93

(0.59 to 1.45)

0.758

  1. PIT Peak intrapartum temperature, N Number, SD Standard deviation, CI Confidence interval, GBS Group-B streptococcus, SROM Spontaneous rupture of membranes, ROM Rupture of membranes, MSAF Meconium-stained amniotic fluid