Summary of findings 13. (ITS) Legislation compared to no legislation for preventing percutaneous exposure injuries caused by needles in healthcare personnel.
| Legislation compared to no legislation ITS for preventing percutaneous exposure injuries caused by needles in healthcare personnel | |||
| Patient or population: preventing percutaneous exposure injuries caused by needles in healthcare personnel Setting: healthcare Intervention: Legislation Comparison: no legislation ITS | |||
| Outcomes | Impact | № of participants (studies) | Quality of the evidence (GRADE) |
| NSI‐ change in level ‐ Interruption | Effect size ‐6.15; confidence interval ‐7.76 to ‐4.54. | (2 observational studies) | ⊕⊕⊕⊝ MODERATE 1 |
| NSI‐ change in level ‐ Gradual introduction | Effect size 0.80; confidence interval 0.41 to 1.19. | (1 observational study) | ⊕⊕⊝⊝ LOW 1 |
| NSI‐ Change in slope ‐ Interruption | Effect size ‐0.94; confidence interval ‐1.97 to 0.09 | (2 observational studies) | ⊕⊝⊝⊝ VERY LOW 1 2 |
| NSI‐ Change in slope ‐ Gradual introduction | Effect size 0.50; confidence interval 0.36 to 0.64 | (1 observational study) | ⊕⊕⊝⊝ LOW 1 |
| Interpretation of effect size: small (0‐0.2) medium (0.2‐0.5) large (0.6 and above), a effect size with negative sign implies decrease and positive sign implies increase of effect. | |||
| GRADE Working Group grades of evidence High quality: We are very confident that the true effect lies close to that of the estimate of the effect Moderate quality: We are moderately confident in the effect estimate: The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different Low quality: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect Very low quality: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect | |||
1 We downgraded the quality of evidence by one level due to risk of bias (dataset did not represent the whole sample). 2 We downgraded the quality of evidence by one level due to imprecision (wide confidence interval).