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Table 3 Odds ratios and 95% confidence intervals (95% CI) for having excessive daytime sleepiness (EDS) for migraineurs compared to non-migraineurs, and men versus women. Stratified analyses according to headache frequency categories

From: Association of excessive daytime sleepiness with migraine and headache frequency in the general population

  Migraine vs. non-migraine Men vs. women
Headache frequency, days last year Odds ratio (95% CI) P Odds ratio (95% CI) P
None 1.38 (1.02─1.87) 0.035 1.25 (1.03─1.51) 0.026
1─11 1.05 (0.89─1.22) 0.58 1.35 (1.19─1.53) <0.001
12─30 0.98 (0.82─1.18) 0.86 1.34 (1.13─1.59) <0.001
31─84 1.16 (0.95─1.42) 0.152 1.36 (1.11─1.66) 0.003
85─179 1.04 (0.78─1.40) 0.78 1.21 (0.90─1.64) 0.21
≥180 1.00 (0.69─1.44) 1.00 0.91 (0.63─1.32) 0.62
Missing 1.23 (0.75─2.01) 0.42 1.37 (0.98─1.91) 0.068
Test of homogeneity of odds ratios: Chi2(6) = 4.69, P = 0.58   Chi2(6) = 4.73, P = 0.58