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Table 1 Mean score of maternal age, gestational age, fatigue and hunger in the three groups at the baseline

From: Effect of infrared belt and hot water bag on labor pain intensity among primiparous: a randomized controlled trial

Variable

Infrared belt group

Hot water bag group

Control group

Test results

Mean ± SD

Mean ± SD

Mean ± SD

Maternal age(year)

24.78 ± 4.53

23.76 ± 4.65

23.98 ± 4.71

Χ2 = *1.72

P-value = 0.42

Gestational age

39.83 ± 0.79

39.63 ± 0.73

39.38 ± 0.93

2 = 7.05

P-value = 0.37

Fatigue score at admission

57.19 ± 23.7

50.83 ± 25.81

58.71 ± 24.96

2 = 2.83

P-value = 0.24

fear

56.32 ± 10.06

54.3 ± 14

53.28 ± 13

2 = 2.97

P-value = 0.22

number of uterine contractions

2.4 ± 0.4

2.34 ± 0.41

2.44 ± 0.44

F = 10.48

P-value = 0.79

Hunger score at admission

38.81 ± 24.35

31.95 ± 22.66

25.12 ± 22.39

2 = 6.11

P-value = 0.04

anxiety

47.23 ± 8.05

41.98 ± 9.08

42.2 ± 8.51

F = 9.11

P-value < 0.001

  1. *Kruskal–Wallis