Table 2 Prevalence and odds ratios of restless legs syndrome according to headache diagnosis

Aged 19–29, 542/12

4 (1.4)

Reference

5 (2.2)

1.3 (0.4–5.0)

0.701

3 (12.0)

6.6 (1.2–36.8)

0.029

Aged 30–39, 604/34

6 (2.0)

Reference

25 (9.3)

4.6 (1.8–12.0)

0.002

3 (7.1)

2.9 (0.6–13.4)

0.176

Aged 40–49, 611/20

3 (1.0)

Reference

13 (4.7)

3.7 (1.0–13.5)

0.046

4 (10.3)

6.7 (1.5–33.5)

0.016

Aged 50–59, 529/35

17 (5.6)

Reference

16 (7.8)

1.3 (0.6–2.7)

0.553

2 (9.1)

1.1 (0.2–5.6)

0.902

Aged 60–69, 409/41

21 (8.6)

Reference

19 (12.8)

1.3 (0.6–2.5)

0.506

1 (6.7)

0.4 (0.1–4.0)

0.459

Total, 2695/142

51 (3.6)

Reference

78 (6.9)

1.8 (1.3–2.7)^a

0.002^a

13 (9.1)

2.2 (1.1–4.3)^a

0.018^a