Table 3 Subgroup analysis of the crude and adjusted hazard ratios (95% confidence interval) of asthma for migraines according to age and sex in study I.
From: Bidirectional association between asthma and migraines in adults: Two longitudinal follow-up studies
Characteristics | Hazard ratios (HR) for migraine | |||
|---|---|---|---|---|
Crude† | P-value | Adjusted†‡ | P-value | |
Age <40 years, men (n = 22,102) | ||||
Asthma | 2.24 (1.82–2.76) | <0.001* | 2.05 (1.67–2.54) | <0.001* |
Control I | 1.00 | 1.00 | ||
Age <40 years, women (n = 43,862) | ||||
Asthma | 1.79 (1.63–1.96) | <0.001* | 1.64 (1.49–1.79) | <0.001* |
Control I | 1.00 | 1.00 | ||
Age 40–59 years, men (n = 31,696) | ||||
Asthma | 1.90 (1.63–2.21) | <0.001* | 1.73 (1.49–2.01) | <0.001* |
Control I | 1.00 | 1.00 | ||
Age 40–59 years, women (n = 52,804) | ||||
Asthma | 1.44 (1.35–1.55) | <0.001* | 1.33 (1.24–1.43) | <0.001* |
Control I | 1.00 | 1.00 | ||
Age ≥60 years, men (n = 30,546) | ||||
Asthma | 1.58 (1.38–1.80) | <0.001* | 1.45 (1.27–1.66) | <0.001* |
Control I | 1.00 | 1.00 | ||
Age ≥60 years, women (n = 45,108) | ||||
Asthma | 1.51 (1.39–1.63) | <0.001* | 1.39 (1.28–1.50) | <0.001* |
Control I | 1.00 | 1.00 | ||
