Table 1.
Evidence profile for sharp injury prevention syringes versus single use disposable syringes when used by healthcare workers to deliver intramuscular, subcutaneous or intradermal injections
| Quality assessment | № of patients | Effect | Quality | Importance | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| № of studies | Study design | Risk of bias | Inconsistency | Indirectness | Imprecision | Other considerations | IM/SC/I Injury prevention safety devices | No safety devices | Relative (95 % CI) | Absolute (95 % CI) | ||
| HIV, HBV and HCV infections amongst HCWs: not reported | ||||||||||||
| Critical | ||||||||||||
| NSI per HCW | ||||||||||||
| 6 | Observational | Not serious | Not serious | Not serious | Not serious | Large effect size | 168/16151 (1.0 %) | 273/14888 (1.8 %) | RR 0.53 (0.41 to 0.69) | 9 fewer per 1000 (from 6 fewer to 11 fewer) | Moderate | Important |