Table 3. Results of the multivariate regression analyses.
| Non Adjusted (R2 0.04) | Ajusted (R2 0.14) | |||||
|---|---|---|---|---|---|---|
| Coef. | CI 95% | p value | Coef. | CI 95% | p value | |
| GP Trainer | ||||||
| Yes | -6.43 | [-8.43; -4.42] | <0.001 | -6.62 | [-8.55; -4.69] | <0.001 |
| No | Ref. | Ref. | ||||
| Gender | ||||||
| Male | - | - | - | 0.34 | [-1.05; 1.73] | 0.63 |
| Female | - | - | - | Ref. | ||
| Age | ||||||
| ≥ 55yo | - | - | - | 3.67 | [2.31; 5.02] | <0.001 |
| < 55yo | - | - | - | Ref. | ||
| Location of the GP’s practice | ||||||
| ≥ 15,000 inhabitants | - | - | - | 0.36 | [-1.01; 1.75] | 0.61 |
| < 15,000 inhabitants | - | - | - | Ref. | ||
| Level of activity (Number of visits) | ||||||
| <3,000 | - | - | - | -3.81 | [-5.28; -2.35] | <0.001 |
| 3,000–4,999 | - | - | - | Ref. | ||
| ≥5,000 | - | - | - | 3.52 | [1.86; 5.17] | <0.001 |
| Proportion of attendances by patients | ||||||
| < 16yo | - | - | - | 0.13 | [0.02; 0.25] | 0.02 |
| with long-term disease | - | - | - | 0.09 | [-0.07; 0.23] | 0.291 |
| with medical fee exemption status for perceiving low incomes | - | - | - | -0.19 | [-0.30; -0.08] | 0.001 |
Reading grid: GP for General Practitioner, CI for Confidence Interval, yo for years old.
The adjusted model showed a significant average of 6.62 percentage points lower for the GP trainers’ antibiotic prescribing rate compared to non-trainers. (23.4% in relative terms)