Table 3 Age- and gender-adjusted associations between probable migraine prevalence and lifestyle variables, restricted to age groups 35–75 years
Probable migraine | DHS (n = 53) | KORA (n = 72) | SHIP (n = 137) |
|---|---|---|---|
| Â | OR (95% CI) | OR (95% CI) | OR (95% CI) |
Smoking | |||
 Never | 1.00 | 1.00 | 1.00 |
 Past | 1.48 (0.77, 2.82) | 1.49 (0.85, 2.61) | 0.91 (0.57, 1.47) |
 Current | 0.90 (0.42, 1.93) | 1.89 (1.03, 3.46) | 1.55 (1.02, 2.35) |
Physical activity | |||
 None | 1.00 | 1.00 | 1.00 |
 ≤2 h/week | 2.10 (1.07, 4.12) | 0.99 (0.55, 1.76) | 1.03 (0.66, 1.61) |
 >2 h/week | 1.31 (0.65, 2.66) | 0.74 (0.39, 1.38) | 0.81 (0.52, 1.27) |
Alcohol consumptiona | |||
 None | 1.00 | 1.00 | 1.00 |
 Moderate | 0.85 (0.44, 1.65) | 0.39 (0.21, 0.75) | 0.65 (0.42, 1.01) |
 Increased | 0.75 (0.37, 1.52) | 0.60 (0.33, 0.99) | 0.50 (0.27, 0.94) |
Body mass index (kg/m²) | |||
 <25 | 1.00 | 1.00 | 1.00 |
 25.0–29.9 | 2.10 (1.00, 4.40) | 0.90 (0.50, 1.63) | 1.39 (0.91, 2.11) |
 ≥30.0 | 2.52 (1.15, 5.49) | 1.26 (0.68, 2.32) | 0.94 (0.58, 1.54) |
Health indexb | 0.94 (0.80, 1.10) | 0.80 (0.70, 0.92) | 0.94 (0.85, 1.05) |