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Table 1 Sociodemographic characteristics of survey participants, the total Korean population, and cases identified as having migraine, probable migraine, and poor sleep quality

From: Poor sleep quality in migraine and probable migraine: a population study

Characteristic

Survey participants N (%)

Total population N (%)

p

Migraine N, % (95% CI)

Probable migraine N, % (95% CI)

Poor sleep quality N, % (95% CI) (PSQI > 5)

Sex

 Male

1345 (49.3)

17,584,365 (50.6)

0.854a

36, 2.7 (1.8−3.5)

136, 10.1 (8.5−11.8)

334, 24.8 (22.5−27.1)

 Female

1350 (50.7)

17,198,350 (49.4)

107, 7.9 (6.5−9.4)

243, 17.9 (15.8−19.9)

381, 28.2 (25.8−30.6

Age, years

 19–29

542 (20.5)

7,717,947 (22.2)

0.917a

25, 4.5 (2.7−6.2)

69, 12.6 (9.8−15.4)

153, 28.3 (24.4−32.0)

 30–39

604 (21.9)

8,349,487 (24.0)

42, 7.0 (4.9−9.1)

102, 16.8 (13.7−19.8)

136, 22.5 (19.2−25.9)

 40–49

611 (23.1)

8,613,110 (24.8)

39, 6.5 (4.5−8.4)

102, 16.8 (13.9−19.8)

167, 27.3 (23.8−30.1)

 50–59

529 (18.9)

6,167,505 (17.7)

22, 4.1 (2.4−5.9)

62, 11.6 (8.8−14.4)

160, 30.2 (26.3−34.2)

 60–69

409 (15.6)

3,934,666 (11.3)

15, 3.9 (2.0−5.7)

44, 11.2 (8.1−14.2)

99, 24.2 (20.0−28.4)

Size of the residential area

 Large city

1248 (46.3)

16,776,771 (48.2)

0.921a

76, 6.1 (4.8−7.5)

180, 14.4 (12.4−16.3)

338, 27.1 (24.6−30.0)

 Medium-to-small city

1186 (44.0)

15,164,345 (43.6)

48, 4.0 (2.9−5.2)

174, 14.7 (12.7−16.7)

303, 25.5 (23.1−28.0)

Rural area

261 (9.7)

2,841,599 (8.2)

19, 7.4 (4.2−10.6)

25, 9.7 (6.1−13.3)

74, 28.4 (22.8−33.9)

Education level

 Middle school or less

393 (14.9)

6,608,716 (19.0)

0.752a

22, 5.5 (4.2−7.7)

44, 11.5 (8.4−14.7)

110, 28.0 (23.5−32.4)

 High school

1208 (44.5)

15,234,829 (43.8)

60, 5.0 (3.8−6.3)

178, 14.7 (12.7−16.7)

317, 26.2 (24.0−28.7)

 College or more

1068 (39.6)

12,939,170 (37.2)

60, 5.6 (4.3−7.0)

155, 14.4 (12.3−16.5)

281, 26.3 (23.7−29.0)

 Did not respond

26 (9.6)

  

1, 3.8 (0.0−11.8)

2, 7.7 (0.0−18.7)

7, 26.9 (8.7−45.2)

Total

2695 (100.0)

34,782,715 (100.0)

 

143, 5.3 (4.5−6.2)

379, 14.1 (12.7−15.4)

715, 26.5 (24.8−28.2)

  1. N number, CI confidence interval, PSQI Pittsburgh Sleep Quality Index
  2. aCompared with corresponding value reported in the general population of Korea