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Table 2 Mean and standard deviation of basic life support skill of nursing students studied in two groups of real-time feedback and debriefing by video recording

From: Comparison of real-time feedback and debriefing by video recording on basic life support skill in nursing students

Ā 

Real time feedback(nā€‰=ā€‰33)

Video debriefing (nā€‰=ā€‰34)

Z

P-value*

effect size

CPR performance score (Mean (SD))

Pre-training

5.81(1.53)

7.02(1.83)

āˆ’2.617

0.009****

Ā 

Post-training

11.69(1.18)

12.11(1.09)

āˆ’1.492

0.136

Ā 

P-value***

Pā€‰<ā€‰0.001

Pā€‰<ā€‰0.001

Ā 

CC Depth (%)

Pre-training

15.30(27.72)

18.85(33.76)

āˆ’0.870

0.384

Ā 

3(11.5IQR)

0(18IQR)

Post-training

76.66(22.65)

49.05(37.22)

āˆ’2.975

0.003

0.79

87(31IQR)

44.5(76IQR)

P-value**

Pā€‰<ā€‰0.001

Pā€‰<ā€‰0.001

Ā 

CC Rate (%)

Pre-training

11.48(20.54)

11.97(25.24)

āˆ’0.069

0.945

Ā 

0(14.5IQR)

0(6IQR)

Post-training

60.54(19.60)

48.08(32.04)

āˆ’1.480

0.139

0.39

61(25.5IQR)

52.5(55.5IQR)

P-value**

Pā€‰<ā€‰0.001

Pā€‰<ā€‰0.001

Ā 

CC Recoil (%)

Pre-training

83.06(30.19)

83.58(29.96)

āˆ’0.171

0.864

Ā 

100(16.5IQR)

100(19.5IQR)

Post-training

78.06(19.65)

71.52(25.86)

āˆ’0.672

0.502

0.31

84(30IQR)

77.5(40.5IQR)

P-value**

0.161

0.033

Ā 

CC Fraction (%)

Pre-training

78.66(26.03)

83.82(19.70)

āˆ’0.628

0.530

Ā 

93.5(45.25IQR)

95.5(30.25IQR)

Post-training

70.18(11.11)

61.91(12.21)

āˆ’2.722

0.006

0.7

68(12 IQR)

63.5(17.25IQR)

P-value**

0.064

<ā€‰0.001

Ā 
  1. *Mannā€“Whitney U **Wilcoxon signed-rank test
  2. *** T paired test
  3. Values are presented as median (interquartile range) or mean (SD) (95% confidence interval)
  4. Pā€‰<ā€‰0.05, statistically significant
  5. ****: In the pre-test stage, it did not become significant by deleting the effect (Pā€‰=ā€‰0.341)