Summary of outcomes for studies with quantitative outcomes (n=42)
| No of studies (%) | |
| Data quality outputs measured | |
| More than one data quality outputs measured | 26 (59) |
| Data accuracy measured | 29 (66) |
| Data completeness measured | 34 (77) |
| Data timeliness measured | 15 (34) |
| Data relevance measured | 1 (2) |
| Improvement in data quality output | |
| One or more outputs improved | 41/44 (93) |
| Improvement in data accuracy | 23/29 (79) |
| Improvement in data completeness | 29/34 (85) |
| Improvement in data timelines | 12/15 (80) |
| Improvement in data relevance | 1/1 (100) |
| Data quality above threshold (outcome improved and ≥80% after intervention) | |
| One or more outputs with adequate data quality after improvement | 30/44 (68) |
| Improved and adequate data quality in accuracy | 14/23 (60) |
| Improved and adequate data quality in completeness | 19/31 (61) |
| Improved and adequate data quality in timeliness | 3/12 (25) |
| Improved and adequate data quality in relevance | 1/1 (100) |
| Improved and adequate data quality in general | N/A |
N/A, not available.