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Table 4 Descriptive analysis of the participants’ performance of current recommended steps to treat an adult victim with FBAO

From: Would anti-choking devices be correctly and quickly managed by health science students? A manikin crossover trial

Variables

Overall (n = 43)

Prior training (n = 31)

No prior training (n = 12)

χ2

p-value

Encourage to cough

1.601

0.206

 Yes

21 (48.8)

17 (54.8)

4 (33.3)

  

 No

22 (51.2)

14 (45.2)

8 (66.7)

  

Give 5 back blows

12.429

 < 0.001

 Yes

31 (71.1)

27 (87.1)

4 (33.3)

  

 No

12 (27.9)

4 (12.9)

8 (66.7)

  

Give black blows correctly

n = 31

n = 27

n = 4

0.005

0.945

Yes

16 (51.6)

14 (51.9)

2 (50.0)

  

No

15 (48.4)

13 (48.1)

2 (50.0)

  

Give 5 abdominal thrusts

0.509

0.476

 Yes

41 (95.3)

30 (96.8)

11 (91.7)

  

 No

2 (4.7)

1 (3.2)

1 (8.3)

  

Give abdominal thrusts correctly

n = 41

n = 30

n = 11

3.095

0.079

 Yes

7 (17.1)

7 (23.3)

0 (0.0)

  

 No

34 (82.9)

23 (76.7)

11 (100.0)

  

Continue to 5 back blows and 5 abdominal thrusts

3,411

0.065

 Yes

24 (55.8)

20 (64.5)

4 (33.3)

  

 No

19 (44.2)

11 (35.5)

8 (66.7)

  

Continue to 5 back blows and 5 abdominal thrusts correctly

n = 24

n = 20

n = 4

0.960

0.327

 Yes

4 (16.7)

4 (20.0)

0

  

 No

20 (83.3)

16 (80.0)

4 (100.0)

  

Start BLS for unconscious victim

1.856

0.173

 Yes

25 (58.1)

20 (64.5)

5 (41.7)

  

 No

18 (41.9)

11 (35.5)

7 (58.3)

  

Perform all the steps

3.237

0.072

 Yes

7 (16.3)

7 (22.6)

0 (0.0)

  

 No

36 (83.7)

24 (77.4)

12 (100.0)

  

Correct compliance ratea

50.0 (37.5 – 62.5)

50.0 (50.0–62.5)

31.3 (12.5–50.0)

-

U = 76,000; p = 0.002b

Time to back blows (sec)

13.2 (10.3 – 19.0)

13.5 (10.5–19.2)

9.4 (6.3–13.2)

-

U = 26,000; p = 0.107b

Time to abdominal thrust (sec)

22.5 (14.2 – 29.1)

26.1 (19.2–31.0)

14.1 (9.5–19.8)

-

U = 58,000; p = 0.001b

Total time (sec)

54.4 (42.9 – 67.6)

56.5 (51.9–71.0)

42.7 (40.7–51.2)

-

U = 77,000; p = 0.002b

  1. Continuous variables are expressed with median (interquartile range)
  2. Categorical variables are expressed with absolute frequency (relative frequency)
  3. FBAO  Foreign Body Airway Obstruction, BLS Basic Life Support, sec seconds, U Mann–Whitney U test value
  4. p-values calculated by Chi-square test
  5. aScore calculated according to correct or incorrect execution of the eight steps of the sequence
  6. bMann-Whitney U test