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Table 2 Basic maternal characteristics of the LD, SPTB, and control groups

From: Labor dystocia and risk of histological chorioamnionitis and funisitis: a study from a single tertiary referral center

 

Participants

 

LD

SPTB

Control

 

Variable

n = 83

n = 144

n = 90

P-value

Maternal age, years

34.2 (5.8)

31.9 (6.2)

31.4 (6.1)

< 0.01a

Maternal age category, %

  <  30 years

24.1

34.7

38.9

< 0.05b

 30–39 years

54.2

56.9

52.2

  > 40 years

21.7

8.3

8.9

Maternal height, cm

157 (6.0)

158 (5.9)

158 (5.8)

0.343a

Primiparous, %

91.6

47.2

58.9

< 0.01b

Cesarean section, %

83.1

64.6

66.7

< 0.05b

Gestational age at delivery, weeks

39.6 (1.2)

30.7 (5.1)

35.9 (3.4)

< 0.01a

Birth weight at delivery, g

3143 (398)

1637 (836)

2160 (770)

< 0.01a

  1. Results are expressed as mean (standard deviation) unless specified otherwise
  2. LD labor dystocia, SPTB spontaneous preterm birth
  3. aP-value: one-way analysis of variance
  4. bP-value: chi-squared test