Delivery under analgesia

RR [95% CI]

p-value

Yes N = 35; n (%)

No N = 79; n (%)

No complaints

Yes

15 (42.9)

2 (2.5)

28.90 [6.10 - 136.80]

<0.001

No

20 (57.1)

77 (97.5)

Pain

Yes

1 (2.9)

76 (96.2)

0.001 [0.00 - 0.001]

<0.001

No

34 (97.1)

3 (3.8)

Paresthesias

Yes

10 (28.6)

5 (6.3)

5.92 [1.85 - 18.99]

0.002

No

25 (71.4)

74 (93.7)

Extension of the expulsion phase

Yes

13 (37.1)

11 (13.9)

3.65 [1.43 - 9.31]

0.004

No

22 (62.9)

68 (86.1)

Dizziness

Yes

3 (8.6)

15 (19.0)

0.40 [0.11 - 1.48]

0.128

No

32 (91.4)

64 (81.0)

Itching

Yes

1 (2.9)

3 (3.8)

0.75 [0.08 - 7.42]

0.640

No

34 (97.1)

76 (96.2)