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Table 1 Skill performance at first, second and third evaluation

From: Evaluation of airway management associated hands-off time during cardiopulmonary resuscitation: a randomised manikin follow-up study

  First evaluation Second evaluation Third evaluation Overall
Endotracheal intubation
Hands-off time 48.0 (43.0-53.0) 32.9 (25.3-40.6)** 37.4 (27.7-47.1)* 39.4 (34.0-44.9)
Attempts 2.2 (1.9-2.5) 1.8 (1.5-2.0) 1.8 (1.5-2.1) 1.9 (1.8-2.1)
Successful 14/40 (35%) 23/40 (58%) 28/40 (70%) 65/120 (54%)
Unrecognised misplacement 8/40 (20%) 7/40 (18%) 6/40 (15%) 21/120 (18%)
Successful attempts within 10s 1/40 (2.5%) 6/40 (15%)* 6/40 (15%)* 13/120 (11%)
Combitube
Hands-off time 10.0 (4.9-15.1) 8.2 (6.5-9.9) 6.0 (4.3-7.8)** 7.9 (6.9-9.0)
Attempts 1.3 (1.1-1.5) 1.2 (1.1-1.4) 1.0 (1.0-1.0) 1.1 (1.1-1.2)
Successful 39/39 (100%) 39/39 (100%) 40/40 (100%) 118/118 (100%)
Unrecognised misplacement 0/39 (0%) 0/39 (0%) 0/40 (0%) 0/118 (0%)
Successful attempts within 10s 29/39 (74.4%) 30/39 (76.9%) 37/40 (92.5%)* 96/118 (81%)
EasyTube
Hands-off time 11.4 (6.4-16.4) 8.3 (5.3-11.4) 6.7 (4.8-8.6)** 8.8 (7.3-10.3)
Attempts 1.3 (1.1-1.5) 1.2 (1.1-1.4) 1.1 (1.0-1.1) 1.2 (1.1-1.3)
Successful 40/40 (100%) 39/39 (100%) 40/40 (100%) 119/119 (100%)
Unrecognised misplacement 0/40 (0%) 0/39 (0%) 0/40 (0%) 0/119 (0%)
Successful attempts within 10s 27/40 (67.5%) 33/39 (84.6%) 34/40 (85%) 94/119 (79%)
I-Gel
Hands-off time 15.9 (10.8-20.9) 12.0 (9.6-14.4) 7.9 (6.2-9.6)** 11.9 (10.2-13.7)
Attempts 1.9 (1.6-2.2) 1.6 (1.4-1.9) 1.3 (1.1-1.5) 1.6 (1.5-1.8)
Successful 40/40 (100%) 39/40 (98%) 40/40 (100%) 119/120 (99%)
Unrecognised misplacement 0/40 (0%) 0/40 (0%) 0/40 (0%) 0/120 (0%)
Successful attempts within 10s 16/40 (40%) 18/40 (45%) 27/40 (67.5%)** 61/120 (51%)
LMA
Hands-off time 13.3 (8.2-18.3) 10.3 (7.7-13.0) 6.8 (5.4-8.3)** 10.2 (8.6-11.7)
Attempts 1.6 (1.3-1.8) 1.4 (1.2-1.6) 1.3 (1.1-1.4) 1.4 (1.3-1.5)
Successful 40/40 (100%) 40/40 (100%) 40/40 (100%) 120/120 (100%)
Unrecognised misplacement 0/40 (0%) 1/40 (3%) 0/40 (0%) 1/120 (1%)
Successful attempts within 10s 21/40 (52.5%) 24/40 (60%) 33/40 (82.5%)** 78/120 (65%)
Laryngeal tube
Hands-off time 8.4 (3.4-16.4) 5.2 (4.2-6.3)** 4.5 (3.7-5.3)** 6.1 (5.2-6.9)
Attempts 1.4 (1.2-1.6) 1.2 (1.0-1.3) 1.1 (1.0-1.1) 1.2 (1.1-1.3)
Successful 40/40 (100%) 40/40 (100%) 40/40 (100%) 120/120 (100%)
Unrecognised misplacement 0/40 (0%) 0/40 (0%) 0/40 (0%) 0/120 (0%)
Successful attempts within 10s 31/40 (77.5%) 39/40 (97.5%)** 39/40 (97.5%)** 109/112 (97%)
  1. Times are presented in seconds as averages (95% confidence interval). Attempts are presented as absolute numbers (95% confidence interval). Successful airway management and misplacements are presented as proportions of CPR sessions (percentages).
  2. *: p< 0.05 hands off time compared with the first evaluation (paired t-test).
  3. **:p<0.025 (corrected to Sidak) hands-off time compared with the first evaluation (paired t-test).