Table 3 Odds ratios for migraine by frequency of smoked tobacco use
Number of cigarette/bidi/hukka per day | Crude OR (95% CI) | P value | Adjusted OR (95% CI) | P value |
|---|---|---|---|---|
Non user | 1 | Ref | 1 | Ref |
1-5 | 5.5 (1.4-21.1) | 0.013 | 5.5 (1.2-24.8) | 0.027 |
6-10 | 18.0 (6.4-50.8) | <0.001 | 6.3 (1.8-21.2) | 0.003 |
>10 | 8.1 (2.9-22.7) | <0.001 | 6.7 (1.9-23.2) | 0.003 |