7. Data from 5 studies about the effect of removal of interventions. The intended effect of all interventions was reduction in unnecessary antibiotic use.
| Study | Intervention function | Intervention effect (95% CI) | Time intervention was in place | Effect of removal (95% CI) |
| Kallen 2009 | Restriction | ‐87.5% ‐115.4 to ‐59.7 |
6 months | 398.9% 238.2 to 559.5 |
| Kim 2008 | Restriction | ‐23.1% ‐53.7 to +7.4 |
9 months | 6.0% ‐23.4 to 35.4 |
| Standiford 2012 | Enablement | ‐28.6% ‐46.5 to ‐10.6 |
7 years | 31.0% 6.8 to 55.3 |
| Himmelberg 1991 | Restriction | No data | “long‐standing” | 301.2% 230.9 to 371.5 |
| Skrlin 2011 | Restriction | 2 years | 255.8% 194.7 to 316.9 |
CI: confidence interval