Adjusted relative risks for selected causes of death by smoking amount and duration in drivers in Guangzhou 1992–99
| Cigarettes/day | Duration of smoking (y) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1–9 | 10–19 | ≥20 | <10 | 10–19 | ≥20 | |||||||||
| Causes of death | RR | 95% CI | RR | 95% CI | RR | 95% CI | p Value for trend | RR | 95% CI | RR | 95% CI | RR | 95% CI | p Value for trend |
| RR, relative risks adjusted for age, alcohol drinking, education, and type of driver. | ||||||||||||||
| Others, causes of death other than malignant neoplasm, respiratory or vascular. | ||||||||||||||
| All causes | 1.12 | 0.83 to 1.52 | 1.16 | 0.97 to 1.38 | 1.45 | 1.20 to 1.75 | 0.0003 | 0.89 | 0.70 to 1.15 | 1.36 | 1.14 to 1.63 | 1.42 | 1.16 to 1.74 | <0.0001 |
| All cancer | 1.17 | 0.77 to 1.78 | 1.03 | 0.80 to 1.33 | 1.49 | 1.13 to 1.94 | 0.02 | 0.73 | 0.50 to 1.07 | 1.37 | 1.07 to 1.76 | 1.36 | 1.01 to 1.82 | 0.01 |
| Lung cancer | 0.75 | 0.23 to 2.47 | 0.83 | 0.45 to 1.55 | 2.36 | 1.39 to 4.00 | 0.01 | 0.66 | 0.25 to 1.71 | 1.55 | 0.89 to 2.71 | 1.59 | 0.88 to 2.84 | 0.06 |
| Respiratory | — | 1.56 | 0.70 to 3.47 | 1.58 | 0.65 to 3.84 | 0.20 | 1.11 | 0.31 to 3.98 | 1.78 | 0.76 to 4.19 | 1.13 | 0.44 to 2.91 | 0.48 | |
| Vascular | 1.35 | 0.65 to 2.78 | 1.07 | 0.67 to 1.70 | 1.40 | 0.87 to 2.30 | 0.25 | 1.54 | 0.86 to 2.71 | 1.03 | 0.62 to 1.71 | 1.39 | 0.85 to 2.27 | 0.30 |
| Others | 1.02 | 0.56 to 1.88 | 1.38 | 1.00 to 1.91 | 1.22 | 0.82 to 1.80 | 0.11 | 0.86 | 0.53 to 1.39 | 1.36 | 0.96 to 1.92 | 1.63 | 1.10 to 2.41 | 0.01 |
| Injury | 0.32 | 0.04 to 2.41 | 0.84 | 0.40 to 1.75 | 1.25 | 0.56 to 2.80 | 0.81 | 0.66 | 0.25 to 1.77 | 0.88 | 0.41 to 1.88 | 1.26 | 0.47 to 3.34 | 0.93 |