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Table 2 Video evaluator assessment of treatment assignment compared to participant treatment believability ratings

From: Chiropractor interaction and treatment equivalence in a pilot randomized controlled trial: an observational analysis of clinical encounter video-recordings

  Active AMCT Videos Sham AMCT Videos
(n =54) (n =57)
Variable Response n^ % n^ %
Video Evaluator Assessment of Treatment Assignment Active AMCT 33 61 16 28
Sham AMCT 3 6 18 31
Not Sure 17 31 22 39
  Active AMCT participants Sham AMCT participants
(n =17) (n =18)
Variable Response n % n %
Participant Believability 1st Treatment Visit Active Treatment+ 14 82 12 66
Inactive Treatment (Placebo)+ 1 6 2 11
Do Not Know 2 12 4 22
   Active AMCT participants Sham AMCT participants
(n =14) (n =14)
Variable Response n % n %
Participant Believability Month 2 Active Treatment+ 13 93 8 58
Inactive Treatment (Placebo)+ 1 7 6 42
Do Not Know 0 0 0 0
  1. +Strongly believe and somewhat believe were combined for presentation.
  2. ^Missing data.