29
| BAC>0.1% | Ignition source (other source) | 2.75 (cigarette ignited)* | (0.73 to 10.3) | |
30
| BAC>0.8 g/l | Ignition source (other source) | 2.3 (smoking material)* | | |
| | Race (non-aboriginal) | 2.6 (aboriginal)* | | χ2=12.6, p=0.0004 |
| Mean BAC | Race (non-aboriginal) | 1.7 (aboriginal)* | | |
26
| BAC = 0 | Age (17–74 years) | 2.6 (>75 years)* | | χ2=84, p<0.005 |
| History of alcoholism | Age (>75 years) | 5.7 (17–74 years)* | | |
31
| BAC>21 mmol/l | Ignition source (heating) | 2.2 (cooking)* | | |
| | | 1.5 (smoking)* | | |
22
| Impairment | Ignition source (other) | 2.3 (heating) | (1.2 to 4.4) | Impairment of person at the fire, according to fire official |
| | | 4.4 (smoking) | (1.8 to 10.5) | |