Table 2 Data quality comparison, prior and post system upgrade to ASPREE Web Accessible Relational Database (AWARD)
From: Overcoming challenges to data quality in the ASPREE clinical trial
| Â | Prior to AWARD | With AWARD |
|---|---|---|
Number of participants | 1000 | 18,114 |
Number of fields collected at baseline | 206 | 220 |
 Baseline data missing due to staff error | 646 (0.3%) | 351 (0.01%) |
 Baseline data requiring querying | 278 (0.14%) | 1469 (0.04%) |
 Protocol deviations | 4 (0.4%) | 15 (0.08%) |
 Proportion of participants with at least 1 missing field due to staff error | 65% | 2% |