Table 4 Multivariate logistic regression analyses of associations of each headache type^a

 Male

Reference

–

Reference

–

Reference

–

 Female

1.5 [1.2–1.8]

<0.001

0.7 [0.6–0.9]

0.003

2.6 [1.2–5.3]

0.010

 18–25

Reference

–

Reference

–

Reference

–

 26–35

1.3 [1.0–1.6]

0.060

0.8 [0.6–0.9]

0.023

2.7 [0.9–7.5]

0.054

 36–45

1.2 [0.9–1.6]

0.19

0.7 [0.5–0.8]

0.004

1.5 [0.5–4.8]

0.52

 46–55

1.1 [0.8–1.4]

0.75

0.9 [0.7–1.2]

0.44

2.1 [0.7–6.8]

0.21

 56–65

1.1 [0.8–1.6]

0.57

0.6 [0.4–0.9]

0.008

2.6 [0.8–8.8]

0.11

 950–1,200

Reference

–

Reference

–

Reference

–

 <950

1.0 [0.8–1.2]

0.94

1.0 [0.8–1.2]

0.76

0.6 [0.3–1.2]

0.16

 >1,200

1.1 [0.8–1.4]

0.66

1.1 [0.8–1.2]

0.58

1.3 [0.7–2.4]

0.44

 Rural

Reference

–

Reference

–

Reference

–

 Urban

1.0 [0.8–1.2]

0.81

1.3 [1.1–1.6]

0.003

1.3 [0.7–2.4]

0.44

 <1,000 m

Reference

–

Reference

–

Reference

–

 ≥1,000 m

1.6 [1.3–2.0]

<0.001

0.7 [0.6–0.8]

<0.001

1.4 [0.8–2.6]

0.29