Proportion of patients deciding to use antibiotics immediately after consulting with their physician before and after the intervention, by study group, family practice teaching unit, type of physician and patient age group
| Variable | % of patients deciding to use antibiotics immediately after consultation | Absolute difference | Adjusted relative risk* (95% CI) | |||
|---|---|---|---|---|---|---|
| At baseline | After intervention | |||||
| Intervention units n = 5 | Control units n = 4 | Intervention units n = 5 | Control units n = 4 | |||
| Teaching unit | ||||||
| All units | 41.2 | 39.2 | 27.2 | 52.2 | 25.0 | 0.5 (0.3 to 0.7) |
| Unit 1 | 38.7 | – | 26.3 | – | – | – |
| Unit 2 | 48.7 | – | 31.0 | – | – | – |
| Unit 3 | 43.9 | – | 25.7 | – | – | – |
| Unit 4 | 40.5 | – | 25.5 | – | – | – |
| Unit 5 | 32.4 | – | 29.6 | – | – | – |
| Unit 6 | – | 54.5 | – | 73.7 | – | – |
| Unit 7 | – | 44.4 | – | 51.0 | – | – |
| Unit 8 | – | 22.6 | – | 49.0 | – | – |
| Unit 9 | – | 44.4 | – | 38.1 | – | – |
| Type of physician | – | |||||
| Resident | 37.5 | 44.4 | 28.6 | 46.7 | 18.1 | 0.6 (0.4 to 0.9) |
| Teacher | 44.1 | 36.8 | 25.7 | 56.3 | 30.6 | 0.5 (.3 to 0.7) |
| Patient age group | ||||||
| Adults | 41.9 | 39.8 | 26.6 | 50.7 | 24.1 | 0.5 (0.4 to 0.8) |
| Children | 40.0 | 36.8 | 27.1 | 65.5 | 38.4 | 0.4 (0.3 to 0.7) |
Note: CI = confidence interval.
↵* Adjusted for cluster design, baseline values and patient age group (for analyses at teaching-unit and physician levels).