Change over time | |||||
---|---|---|---|---|---|
Site | Time frame | Data completeness (%) | Mean difference (%) | 95% CI | p Value |
Site 1 | Pre-DQA | 88.0 | +8.6 | (7.7% to 9.5%) | <0.001 |
Post-DQA | 96.6 | ||||
Site 2 | Pre-DQA | 95.6 | +2.7 | (1.0% to 4.5%) | 0.003 |
Post-DQA | 98.3 | ||||
Site 3 | Pre-DQA | 94.6 | +3.8 | (2.9% to 4.7%) | <0.001 |
Post-DQA | 98.3 | ||||
Site 4 | Pre-DQA | 95.3 | −1.7 | (−2.6% to −0.7%) | <0.001 |
Post-DQA | 93.6 |
DQA,data quality audit.