Table 2.

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.