Variable

Paracetamol group

(n = 130)

TENS group

(n = 130)

Pethidine group

(n = 130)

p-value

Maternal age (years)

23.23 ± 4.43

24.18 ± 4.57

23.75 ± 4.26

0.226* (NS)

Weight (Kg)

73.98 ± 21.77

76.63 ± 20.26

72.35 ± 15.32

0.197* (NS)

Height (m)

1.61 ± 0.17

1.63 ± 0.167

1.62 ± 0.165

0.619* (NS)

Body mass index (Kg/m2)

28.18 ± 6.14

28.76 ± 5.8

27.92 ± 4.5

0.45* (NS)

Education level (n, %)

Illiterate

Primary education

Secondary education

University/Postgraduate

17 (13.1%)

28 (21.5%)

50 (38.5%)

35 (26.9%)

19 (14.6%)

35 (26.9%)

39 (30%)

37 (28.5%)

19 (14.6%)

43 (33.1%)

33 (25.4%)

35 (26.9%)

0.315** (NS)

Parity (median, range)

2 (0-5)

2 (0-5)

2 (0-5)

0.34* (NS)

Gestational age (months)

38.66 ± 0.81

38.72 ± 0.8

38.74 ± 0.74

0.71* (NS)

Labor duration (minutes)

1st stage

2nd stage

3rd stage

252.1 ± 82.73

23.12 ± 7.72

10.91 ± 3.3

255.96 ± 85.42

21.87 ± 6.99

10.96 ± 2.93

255.38 ± 96.48

23.5 ± 7.91

11.35 ± 3.42

0.93* (NS)

0.192* (NS)

0.49* (NS)