Pathology

Risk factors

Anal fissure

Number

Frequency

n = 15 (%)

P

RR

95% IC

Age (years)

≥30

39

5 (12.8)

0.496

1.43

[0.52 - 3.90]

<30

111

10 (9.0)

Parity

Multiparity

44

5 (11.36)

0.117

0.46

[0.17 - 1.23]

Primiparity

41

10 (24.4)

Constipation

Yes

67

8 (11.9)

0.127

2.38

[0.75 - 7.58]

No

83

7 (8.4)

BMI (kg/m²)

≥25

103

8 (7.8)

0.179

0.521

[0.20 - 1.35]

<25

47

7 (14.9)

Delivery

vaginal delivery

116

13 (11.2)

0.364

1.90

[0.45 - 8.03]

Cesarean section

34

2 (5.9)

Use of suction cup

Yes

16

4 (25)

0.123

2.27

[0.82 - 6.27]

No

100

11 (11)

Expulsion time (minutes)

>20

20

9 (45)

0.000

7.20

[2.89 - 17.95]

≤20

96

6 (6.25)

Weight of newborn (g)

>3500

7

3 (42.85)

0.002

5.43

[1.97 - 14.95]

≤3500

152

12 (7.89)