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Table 2 Top five recommended practices to mitigate missing data recommended by chief investigators

From: Identifying research priorities for effective retention strategies in clinical trials

Retention strategy Number of respondents (%)
n = 50
Monitoring (procedures, methods and systems for monitoring data return and following up outstanding data) 25 (50%)
Good site relationship/regular contact with sites to ensure buy in 15 (30%)
Site training (initiation training and triggered training) 11 (22%)
Multiple methods of data collection 10 (20%)
Well-chosen measures and outcomes 6 (12%)
  1. See Additional file 3: Table S7 for complete list of recommend practices