| Study | Country | Workplace exposure indicator | Relative risk (95% confidence interval) |
|---|---|---|---|
| Kabat and Wynder 1984 | United States | Current regular exposure | 0.7 (0.3-1.5) |
| Koo et al. 1984 | Hong Kong | Exposure at work or work and home * | 1.4 (0.5-3.7) |
| Garfinkel et al. 1985 | United States | Exposure at work for last 25 years | 0.9 (0.7-1.2) |
| Wu et al. 1985 | United States | Exposure at work | 1.3 (0.5-3.3) |
| Lee et al. 1986 | England | Exposure at work | 0.6 (0.2-2.3) |
| Butler 1988 | United States | Exposure at work for > 11 years | 1.5 (0.2-14.1) |
| Shimizu et al. 1988 | Japan | Exposure at work | 1.2 (0.7-2.0) |
| Janerich et al. 1990 | United States | Exposure at work, 150 person-years | 0.9 (0.8-1.04) ** |
| Kalandidi et al. 1990 | Greece | Highest level of exposure | 1.1 (0.2-1.9) |
| Wu-Williams et al. 1990 | China | Exposure at work | 1.1 (0.9-1.6) |
| Brownson et al. 1992a | United States | Any exposure Highest level of exposure | No association 1.2 (0.9-1.7) |
| Stockwell et al. 1992 | United States | Not specified | No association |
| Fontham et al. 1994 | United States | Any exposure Highest level of exposure | 1.4 (1.1-1.7) 1.9 (1.2-2.8) |
| Kabat et al. 1995 | United States | Any exposure Highest level of exposure | 1.2 (0.6-2.1) 1.4 (0.6-2.8) |
| Boffetta et al. 1998 | 7 European countries | Any exposure Highest level of exposure | 1.2 (0.9-1.5) 1.9 (1.1-3.2) |
| Jöckel et al. 1998 | Germany | Highest level of exposure | 2.7 (0.7-9.7) ** |
Total exposure was as follows: 2,121 hours over 2.0 years for cases; 1,681 hours over 1.2 years for controls.
Includes women and men study participants. No separate data reported for women.
From: Chapter 3. Health Consequences of Tobacco Use Among Women
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