Table 4 Unadjusted analyses of associations (bivariate analysis) between headache types and demographic and social status variables

Gender

 male (n = 1,038)

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 female (n = 1,535)

1.6 [1.4–1.9]

p < 0.001

0.7 [0.6–0.9]

p < 0.001

2.8 [1.9–4.1]

p < 0.001

2.2 [1.5–3.4]

p < 0.001

Age (years)

 18–25 (n = 473)

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 26–35 (n = 626)

1.1 [0.8–1.4]

p = 0.59

1.2 [0.9–1.5]

p = 0.27

1.6 [0.9-3.0]

p = 0.14

0.9 [0.5–1.5]

p = 0.60

 36–45 (n = 604)

1.2 [0.9–1.5]

p = 0.19

1.1 [0.9–1.5]

p = 0.33

1.9 [1.0-3.5]

p = 0.04

0.7 [0.4–1.3]

p = 0.24

 46–55 (n = 474)

1.1 [0.9–1.5]

p = 0.34

1.2 [0.9–1.5]

p = 0.37

2.6 [1.5–4.9]

p = 0.001

0.9 [0.5–1.6]

p = 0.77

 56–65 (n = 383)

0.9 [0.7–1.2]

p = 0.49

1.4 [1.0-1.8]

p = 0.03

2.4 [1.3–4.6]

p = 0.005

1.4 [0.8–2.4]

p = 0.28

Habitation

 urban (n = 1661)

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 rural (n = 868)

0.9 [0.8–1.1]

p = 0.60

1.1 [0.9–1.3]

p = 0.57

0.7 [0.5-1.0]

p = 0.09

1.0 [0.7–1.4]

p = 0.99

Marital status

 single (n = 626)

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 married (n = 1,752)

1.1 [0.9–1.4]

p = 0.26

1.0 [0.8–1.2]

p = 0.63

1.3 [0.9–2.1]

p = 0.19

1.3 [0.8–2.1]

p = 0.25

 divorced or widowed (n = 191)

1.2 [0.9–1.7]

p = 0.22

0.9 [0.6–1.2]

p = 0.41

3.1 [1.7–5.4]

p < 0.001

2.5 [1.3–4.7]

p = 0.004

Education level

 none (n = 1,078)

1.1 [0.8–1.4]

p = 0.51

0.9 [0.7–1.2]

p = 0.68

1.5 [0.9–2.6]

p = 0.10

3.6 [1.7–8.6]

p = 0.002

 primary (n = 653)

0.8 [0.6–1.1]

p = 0.16

1.0 [0.8–1.4]

p = 0.78

1.1 [0.6–1.9]

p = 0.82

3.6 [1.7–8.9]

p = 0.002

 secondary (n = 436)

0.8 [0.6-1.0]

p = 0.08

1.3 [1.0-1.7]

p = 0.11

0.9 [0.4–1.7)

p = 0.65

2.0 [0.8–5.3]

p = 0.13

 college/university (n = 377)

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