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Table 1 Completion of electronic Case Report Forms (CRFs) and the number of data queries by study site

From: Integrating technology into complex intervention trial processes: a case study

Study site Number of participants recruited Number of required CRFs Number of completed CRFs Completed CRFs (% total) Number of Data queries Median time to query resolution (days)
1 10 654 643 98.3 22 4
2 2 124 120 96.8 6 1.5
3 4 239 237 99.2 22 1
4 5 325 325 100.0 18 1.5
5 6 337 337 100.0 22 6
6 4 241 240 99.6 8 19
7 10 576 563 97.7 18 2
8 5 182 174 96.0 25 2
Total 46 2678 2639 98.5 141 3