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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).