Multiple logistic regression analysis showing factors independently associated with 426 general practitioners’ (GPs) antibiotic prescriptions for 24 888 respiratory tract infection episodes during 1 year (December 2004 through November 2005)
| n (episodes) | Adjusted OR (95% CI) | |
|---|---|---|
| Patient factors | ||
| Patient's gender | ||
| Male (ref) | 13 214 | 1 |
| Female | 11 674 | 0.97 (0.90 to 1.04) |
| Group of diagnoses | ||
| Acute upper respiratory tract infections and symptoms (ref) | 6806 | 1 |
| Other respiratory tract infections | 8758 | 0.76 (0.67 to 0.87) |
| Acute bronchitis | 1481 | 4.35 (3.53 to 5.35) |
| Pneumonia | 606 | 16.5 (12.7 to 21.4) |
| Acute otitis and ear pain | 5961 | 5.16 (4.55 to 5.85) |
| Acute tonsillitis | 1276 | 33.6 (25.7 to 43.9) |
| Patient age | ||
| <2 years (ref) | 7909 | 1 |
| 3–4 years | 10 118 | 1.34 (1.24 to 1.46) |
| 5–6 years | 6861 | 1.41 (1.28 to 1.54) |
| Doctor factors | ||
| Doctor's gender | ||
| Male (ref) | 16 281 | 1 |
| Female | 8607 | 1.06 (0.88 to 1.28) |
| Practice location | ||
| City (ref) | 14 009 | 1 |
| Rural | 10 879 | 1.00 (0.84 to 1.18) |
| Practice type | ||
| Group (ref) | 23 207 | 1 |
| Single | 1681 | 1.10 (0.81 to 1.49) |
| Educational level | ||
| GP specialist (ref) | 21 798 | 1 |
| Not specialist | 3090 | 1.38 (1.06 to 1.81) |
| Doctor's age | ||
| 28–43 (ref) | 7096 | 1 |
| 44–49 | 7544 | 1.19 (0.94 to 1.52) |
| 50–54 | 5833 | 1.05 (0.82 to 1.36) |
| 55–67 | 4415 | 1.12 (0.86 to 1.44) |
| Patient contacts per year | ||
| 309–2302 (ref) | 4025 | 1 |
| 2303–3028 | 5495 | 1.16 (0.91 to 1.47) |
| 3029–3711 | 7060 | 1.27 (0.99 to 1.62) |
| 3712–11252 | 8308 | 1.54 (1.20 to 1.97) |
Significant values in bold, p<0.05.