Table 4 Monthly drug use density (expressed as RDD per 100 patient days) trends ß 2 in the medical service post-intervention compared to the effects of a hypothetical intervention at six control services according to regression analysis (P values in parentheses)
Post-intervention trend changes β2 | ||||
|---|---|---|---|---|
Service/department | Cephalosporins | Fluoroquinolones | Penicillins | TOTAL |
Medical service | −0.517 | −0.40 | 0.34 | −1.102 |
(intervention) | (<0.001) | (<0.001) | (<0.001) | (<0.001) |
Department A | −0.171 | 0.01 | 0.261 | 0.247 |
(control) | (0.024) | (ns) | (<0.001) | (0.041) |
Department B | −0.40 | 0.451 | −0.0579 | 0.0246 |
(control) | (<0.001) | (<0.001) | (0.1) | (ns) |
Department C | 0.057 | −0.315 | 0.0501 | −0.332 |
(control) | (ns) | (<0.001) | (ns) | (0.006) |
Department D | −0.134 | −0.0431 | 0.0418 | −0.272 |
(control) | (0.077) | (ns) | (ns) | (0.024) |
Department E | −0.278 | −0.021 | −0.0305 | −0.534 |
(control) | (<0.001) | (ns) | (ns) | (<0.001) |
Department F | −0.426 | 0.002 | 0.206 | −0.454 |
(control) | (<0.001) | (ns) | (<0.001) | (<0.001) |
Medical service | −0.292 | −0.414 | 0.261 | −0.882 |
versus controls* | (<0.001) | (<0.001) | (<0.001) | (<0.001) |