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Table 1 Sociodemographic and preoperative characteristics of patients who underwent spinal anesthesia, 2017

From: Incidence and risk factors of postdural puncture headache: prospective cohort study design

Variables

Category

Frequency

Percentage

Age in years

18–24

34

22.7

25–29

80

53.3

30–34

30

20.0

35–39

6

4.0

Parity

Primigravida

53

35.3

Multigravida

97

64.7

ASA class

Class I

145

96.7

Class II

5

3.3

BMI

Underweight

8

5.3

Normal

124

82.7

Overweight

18

12.0

Previous history of anesthesia

No

119

79.3

Yes

31

20.7