Adjusted* relative risk (95% confidence interval) of myocardial infarction by tobacco consumption in 6505 women and 5644 men in the Copenhagen City Heart Study. Results from Cox proportional hazard regression analyses
| Women | Men | |||||
|---|---|---|---|---|---|---|
| Events (n) | RR | 95% CI | Events (n) | RR | 95% CI | |
| *Adjusted for age, systolic and diastolic blood pressure, BMI, total cholesterol, triglyceride, school education, household income, physical activity, alcohol intake, self reported diabetes, and family history of MI. | ||||||
| Never smokers | 107 | ref | 62 | ref | ||
| Ex-smokers | 42 | 0.83 | 0.58 to 1.19 | 170 | 1.10 | 0.82 to 1.47 |
| Non-inhalers | ||||||
| <3 g/day | 3 | 0.90 | 0.28 to 2.86 | 2 | 2.03 | 0.49 to 8.30 |
| 3–5 g/day | 13 | 1.07 | 0.60 to 1.92 | 11 | 1.28 | 0.67 to 2.45 |
| 6–9 g/day | 26 | 1.58 | 1.03 to 2.43 | 21 | 0.87 | 0.53 to 1.44 |
| 10–14 g/day | 23 | 2.00 | 1.27 to 3.15 | 31 | 1.30 | 0.84 to 2.00 |
| 15–24 g/day | 35 | 1.87 | 1.27 to 2.74 | 55 | 1.39 | 0.96 to 2.01 |
| >24 g/day | 9 | 1.92 | 0.97 to 3.82 | 26 | 1.11 | 0.70 to 1.76 |
| Test for trend | p<0.001 | p=0.19 | ||||
| Inhalers | ||||||
| <3 g/day | 2 | 1.40 | 0.34 to 5.70 | 2 | 0.76 | 0.19 to 3.13 |
| 3–5 g/day | 10 | 2.14 | 1.11 to 4.13 | 10 | 1.03 | 0.53 to 2.01 |
| 6–9 g/day | 21 | 2.44 | 1.52 to 3.93 | 39 | 2.10 | 1.40 to 3.14 |
| 10–14 g/day | 79 | 3.08 | 2.26 to 4.18 | 115 | 1.68 | 1.23 to 2.30 |
| 15–24 g/day | 94 | 3.15 | 2.33 to 4.25 | 228 | 1.61 | 1.21 to 2.15 |
| >24 g/day | 12 | 3.45 | 1.86 to 6.39 | 100 | 1.96 | 1.41 to 2.71 |
| Test for trend | p<0.001 | p<0.001 | ||||
| Total number of events | 476 | 872 | ||||