Pain characteristic

Paracetamol group

(n = 130)

TENS group

(n = 130)

Pethidine group (n = 130)

p-value*

Baseline

7 (5 - 9)

7 (4 - 9)

7 (5 - 9)

0.45 (NS)

After 15 min

7 (5 - 9)

6 (4 - 8)

5 (4 - 9)

<0.001 (S)

After 30 min

7 (5 - 9)

5 (4 - 9)

4 (3 - 7)

<0.001 (S)

After 1 hour

6 (5 - 9)

5 (4 - 9)

4 (3 - 7)

<0.001 (S)

After 2 hours

6 (5 - 9)

5 (4 - 8)

4 (3 - 7)

<0.001 (S)

Need for additional analgesia (n, %)

28 (21.5%)

9 (6.9%)

2 (1.5%)

<0.001** (S)

Labor augmentation with oxytocin (n, %)

28 (21.5%)

12 (9.2%)

2 (1.5%)

<0.001** (S)