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Table 5 Comparison of the non-adherence in the reporting of observed ICC for each primary outcome before and after CONSORT 2010 statement for cRCTs (published in Sept 2012)

From: Statistical analysis of publicly funded cluster randomised controlled trials: a review of the National Institute for Health Research Journals Library

  Year of publication
Before
1997–2012
After
2013–2021
All
1997–2021
Number of trials 11 75 86
Number of primary outcomes 13 87 100
Number of primary outcomes with the observed ICC not reported (%) 4 (31) 38 (44) 42(42)