Dose (μg/week) | DMBA | Mortality at 80 weeks | Tumour probability at 80 weeks | ||
---|---|---|---|---|---|
MS | SS | MS | SS | ||
DMBA, 7,12 dimethylbenz(α)anthracene; MS, mainstream smoke; SS, sidestream smoke. | |||||
0 | − | 33 | 0 | ||
0 | + | 19 | 0.003 | ||
60 | − | 29 | 41 | 0.12 | 0.55 |
90 | − | 29 | 55 | 0.21 | 0.71 |
120 | − | 30 | 61 | 0.13 | 0.65 |
60 | + | 27 | 63 | 0.38 | 0.65 |
90 | + | 30 | 74 | 0.48 | 0.82 |
120 | + | 35 | 86 | 0.49 | 0.86 |