| Explanatory variables* | Model (1) including the variable“physician speciality”† | Model (2) not including the variable“physician speciality”‡ | |
| Odds ratio (95 CI) | Odds ratio (95 CI)§ | ||
| Speciality | GPs | 1.00 (–) | – (–) |
| Pulmonologist | 4.46 (2.38 to 8.37) | ||
| Mean age (continuous) | 0.99 (0.96 to 1.02) | 0.98 (0.95 to 1.01) | |
| Gender () | Women | 1.00 (–) | 1.00 (–) |
| Men | 0.97 (0.60 to 1.57) | 0.95 (0.59 to 1.52) | |
| Vignette¶ | Smoker | 1.00 (–) | 1.00 (–) |
| Non-smoker | 3.15 (2.11 to 4.70) | 3.08 (2.07 to 4.57) | |
| Number of daily consultations | >25 | 1.00 (–) | 1.00 (–) |
| ⩽25 | 1.83 (1.17 to 2.88) | 2.12 (1.37 to 3.31) | |
| Has taken a CME course in occupational health** | No | – (–) | 1.00 (–) |
| Yes | 1.80 (1.09 to 2.98) | ||
| Has had patients with asbestos-related cancers | No | 1.00 (–) | 1.00 (–) |
| Yes | 1.93 (1.07 to 3.47) | 2.32 (1.31 to 4.12) | |
| Thinks that not knowing reporting criteria is a | No | – (–) | 1.00 (–) |
| barrier to reporting OD†† | Yes | 0.61 (0.38 to 0.97) | |
| Agrees that completing OD medical certificates is | No | 1.00 (–) | 1.00 (–) |
| part of role†† | Yes | 2.00 (1.22 to 3.27) | 2.23 (1.37 to 3.62) |
*Other variables tested in simple logistic regressions and not significant at p 0.20 were not entered in either model: size of urban unit, asks questions about past working conditions, number of occupational disease medical certificates completed in the past 5 years, feels able to answer patients’ questions about OH, thinks that lack of knowledge of administrative procedures is a barrier to reporting OD, thinks that complexity of the lists of compensable occupational diseases is a barrier to reporting OD, thinks that lack of time is a barrier to reporting OD, thinks that detecting an occupational disease is part of role; †Hosmer and Lemeshow test: p 0.88; ‡Hosmer and Lemeshow test: p 0.56; §95 CI, 95 confidence interval; ¶A: smoker, B: non-smoker; **CME, continuing medical education; ††occupational diseases.