Table 3.
Interrupted time series analysis results for utilization of antibiotics under price control, by sub-therapeutic categories
| Subtherapeutic categories | Time (p value) | Intervention (p value) | Time after intervention (p value) | Constant (p value) | Goodness of fit (R2) |
|---|---|---|---|---|---|
| Aminoglycosides | − 0.001 (0.41) | − 0.170 (0.08) | 0.002 (0.42) | 14.45 (0.00) | 0.94 |
| Broad spectrum penicillin | 0.009 (0.00) | 0.238 (0.00) | − 0.002 (0.35) | 17.43 (0.00) | 0.98 |
| Narrow spectrum penicillin | 0.002 (0.93) | 0.355 (0.44) | 0.021 (0.68) | 12.08 (0.00) | 0.40 |
| Cephalosporins | 0.006 (0.00) | − 0.011 (0.88) | − 0.006 (0.56) | 17.98 (0.00) | 0.98 |
| Fluroquinolones | − 0.001 (0.39) | − 0.065 (0.43) | 0.002 (0.50) | 18.19 (0.00) | 0.97 |
| Macrolides | 0.005 (0.00) | 0.180 (0.02) | − 0.007 (0.01) | 17.30 (0.00) | 0.98 |
| Tetracyclines | − 0.014 (0.00) | − 2.11 (0.00) | − 0.004 (0.28) | 18.83 (0.00) | 0.97 |
| Trimethoprim and combinations | 0.002 (0.73) | 0.291 (0.10) | − 0.024 (0.00) | 17.66 (0.00) | 0.90 |
| Other antibacterials | 0.006 (0.00) | 0.878 (0.00) | − 0.010 (0.00) | 10.56 (0.00) | 0.88 |