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Table 3 Proportions of correct answers in the post-hoc analysis of the primary outcome

From: Assessment of breathing in cardiac arrest: a randomised controlled trial of three teaching methods among laypersons

Post-hoc subgroup analysis

Correct answers/number of answers (%)

 Lecture-based teaching

  University students

118/135 (87%)

  Military conscripts

142/162 (88%)

   Elderly retirees

129/171 (75%)

 Video-based teaching

  University students

128/135 (95%)

  Military conscripts

160/171 (94%)

  Elderly retirees

117/144 (81%)

 Simulation-based teaching

  University students

148/153 (97%)

  Military conscripts

141/153 (92%)

  Elderly retirees

116/153 (76%)

  1. Total number and proportions of correct answers in the post-hoc subgroup analysis of the primary outcome (recognition of breathing patterns) investigating the effect of teaching method on the different subgroups (university students, military conscripts and elderly retirees). Numbers are calculated as the total number of correct answers (for example, 15 university students were randomised to receive lecture-based teaching and watched a total of 9 videos for the primary outcome providing the possibility of 135 correct answers)