Table 1 Sociodemographic distribution of all survey participants including migraine, non-migraine headache, and excessive daytime sleepiness

Gender

Men

1345 (49.3^a)

17,584,365 (50.6)

0.854^b

36, 2.7 (1.8–3.5)

471, 35.0 (32.4–37.6)

161, 12.0 (10.2–13.7)

Women

1350 (50.7 ^a)

17,198,350 (49.4)

107, 7.9 (6.5–9.4)

659, 49.0 (46.2–51.5)

152, 11.3 (9.6–12.9)

Age

19–29

542 (20.5 ^a)

7,717,947 (22.2)

0.917^b

25, 4.5 (2.7–6.2)

231, 42.6 (38.4–46.8)

52, 9.6 (7.1–12.1)

30–39

604 (21.9 ^a)

8,349,487 (24.0)

42, 7.0 (4.9–9.1)

269, 44.5 (40.6–48.5)

71, 11.8 (9.2–14.3)

40–49

611 (23.1 ^a)

8,613,110 (24.8)

39, 6.5 (4.5–8.4)

277, 45.3 (41.4–49.3)

62, 10.1 (7.7–12.5)

50–59

529 (18.9 ^a)

6,167,505 (17.7)

22, 4.1 (2.4-5.9)

204, 38.6 (34.4-42.7)

66, 12.5 (9.7-15.3)

60–69

409 (15.6 ^a)

3,934,666 (11.3)

15, 3.9 (2.0–5.7)

149, 36.4 (31.7–41.1)

62, 15.2 (11.7–18.6)

Size of residential area

Large city

1248 (46.3 ^a)

16,776,771 (48.2)

0.921^b

76, 6.1 (4.8–7.5)

525, 42.1 (39.3–44.8)

150, 12.0 (10.2–13.8)

Medium-to-small city

1186 (44.0 ^a)

15,164,345 (43.6)

48, 4.0 (2.9–5.2)

488, 41.1 (38.3–43.9)

134, 11.3 (9.5–13.1)

Rural area

261 (9.7 ^a)

2,841,599 (8.2)

19, 7.4 (4.2–10.6)

117, 44.8 (38.8–50.9)

29, 11.1 (7.3–14.9)

Educational level

Middle school or less

393 (14.9 ^a)

6,608,716 (19.0)

0.752^b

22, 5.5 (4.2–7.7)

165, 42.0 (37.1–46.9)

58, 14.8 (11.2–18.3)

High school

1208 (44.5 ^a)

15,234,829 (43.8)

50, 5.0 (3.8–6.3)

502, 41.6 (38.8–44.3)

135, 11.2 (9.4–13.0)

College or more

1068 (39.6 ^a)

12,939,170 (37.2)

60, 5.6 (4.3–7.0)

457, 42.7 (39.8–45.8)

119, 11.1 (9.3–13.0)

Not responded

1, 3.8 (0.0–11.8)

6, 5.3 (0.3–9.6)

1, 3.8 (0.0–11.8)

Total

2695 (100.0 ^a)

34,782,715 (100.0)

143, 5.3 (4.5–6.2)

1130, 41.9 (40.0–43.8)

313, 11.6 (10.4–12.8)