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Table 3 Methodological issues that were addressed numerically with frequencies of participants or other statistical methods

From: Questions asked and answered in pilot and feasibility randomized controlled trials

Issue   Drug (n = 28) Non-drug (n = 22)
Recruitment none 21 (75%) 9 (41%)
  brief coverage 5 (18%) 4 (18%)
  detailed coverage 1 (4%) 3 (14%)
  tabulated/figure 1 (4%) 6 (27%)
Retention none 16 (57%) 9 (41%)
  brief coverage 6 (21%) 7 (32%)
  detailed coverage 0 0
  tabulated/figure 6 (21%) 6 (27%)
Compliance/adherence with the intervention none 14 (50%) 10 (46%)
  brief coverage 7 (25%) 7 (32%)
  detailed coverage 5 (18%) 1 (5%)
  tabulated/figure 2 (7%) 4 (18%)
Blinding procedures brief coverage 2 (7%) 1 (5%)
Acceptability of the intervention to participants brief coverage 1 (4%) 1 (5%)
  detailed coverage 0 1 (5%)
  tabulated/figure 0 2(9%)
Other aspects of the intervention brief coverage 1 (4%) 2 (9%)
  detailed coverage 0 1 (5%)
  tabulated/figure 0 2 (9%)
Outcome assessment brief coverage 1 (4%) 4 (18%)
  detailed coverage 1 (4%) 0
  tabulated/figure 0 1 (5%)
Randomization procedure brief coverage 0 2 (9%)
  detailed coverage 0 1 (5%)
Acceptability of trial procedures brief coverage 1 (4%) 0
  detailed coverage 0 3 (14%)
Logistics of multi-centre procedures detailed coverage 0 1 (4%)