Retention of Basic-Life-Support Knowledge and Skills in Second-Year Medical Students

Figures & data

Table 1 Gender and Experience in BLS of Second-Year Medical Students

Characteristics	n	Percentage (N= 149)
Female gender	78	52.35
Age (year); n (%)	19.15 (0.54)
Knowledge of emergency medical service	37	24.83
Experienced in emergency medical service	11	7.38
Trained in basic-life-support program	48	32.21
Experienced in basic-life-support situation	1	0.67

Table 2 BLS Knowledge Before, Immediately After and 6 Months After the Training

Test Score	Before Training (N=149)	After Training
		Immediate (N=149)	6 Months (N=149)
Mean (SD)	8.52 (1.88)	12.12 (1.52)	10.83 (1.95)
Mean difference^a 95% CI p-value		3.60 3.22, 3.99 <0.001	2.31 1.92, 2.70 <0.001

Note: ^aAfter adjusted with gender, age, knowledge and experienced in emergency medical service, and trained and experienced in basic-life-support

Table 3 Detection, Activation and Chest Compression Skills Before, Immediately After and 6 Months After the Training

Skill Test Passing	Before Training (N=149)	After Training
		Immediate (N=149)	6 Months (N=149)
Detection skill; n (%) Activation skill; n (%) Compression skill; n (%)	83 (55.70) 27 (18.12) 16 (10.74)	139 (93.29) 139 (93.29) 62 (41.61)	143 (95.97) 120 (80.54) 41 (27.52)
Risk ratio of passing^a Detection skill 95% CI p-value		1.67 1.28, 2.19 <0.001	1.72 1.31, 2.26 <0.001
Activation skill 95% CI p-value		5.15 3.41, 7.77 <0.001	4.44 2.93, 6.75 <0.001
Compression skill 95% CI p-value		3.88 2.24, 6.71 <0.001	2.56 1.44, 4.57 0.001

Note: ^aAfter adjusted with gender, age, knowledge and experienced in emergency medical service, and trained and experienced in basic-life-support

Table 4 BLS Skills at 6 Months After Training Compared with Immediately After Training

Knowledge and Skill Testing	6 Months After Training (N=149)
Mean testing score difference^a 95% CI p-value	−1.29 –1.67, −0.92 <0.001
Risk ratio of passing^a Detection skill 95% CI p-value	1.03 0.81, 1.29 0.81
Activation skill 95% CI p-value	0.86 0.68, 1.10 0.24
Compression skill 95% CI p-value	0.66 0.45, 0.98 0.04

Note: ^aAfter adjusted with gender, age, knowledge and experienced in emergency medical service, and trained and experienced in basic-life-support.

Table 5 Comparison of Test Score Between Trained and Not-Trained BLS Before Training, Immediately After Training, and Six Months After Training

	Trained (n=48)	Not-Trained (n=101)	Mean Difference (95% CI)	P-value
Test score mean (SD)
Before training	9.23 (1.69)	8.18 (1.88)	1.05 (0.42, 1.68)	0.001
Immediately after training	12.5 (1.59)	11.94 (1.45)	0.56 (0.04, 1.08)	0.03
Six months after training	11.21 (2.01)	10.64 (1.91)	0.57 (−0.1, 1.24)	0.09

Table 6 Comparison of Detection Skill, Activation Skill, and Compression Skill Between Trained and Not-Trained BLS Before Training, Immediately After Training, and Six Months After Training

	Trained (n=48)	Not-Trained (n=101)	Odds Ratio (95% CI)	P-value
Detection skill n (%)
Before training	31 (64.58)	52 (51.49)	1.72 (0.85, 3.49)	0.13
Immediately after training	45 (93.75)	94 (93.07)	1.12 (0.28, 4.52)	0.87
Six months after training	45 (93.75)	98 (97.03)	0.46 (0.09, 2.36)	0.35
Activation skill n (%)
Before training	11 (27.92)	16 (15.84)	1.58 (0.67, 3.73)	0.29
Immediately after training	45 (93.75)	94 (93.07)	1.12 (0.28, 4.52)	0.87
Six months after training	38 (79.17)	82 (81.19)	0.88 (0.37, 2.07)	0.77
Compression skill n (%)
Immediately after training	5 (10.42)	11 (10.89)	0.95 (0.31, 2.91)	0.93
Immediately after training	20 (41.67)	42 (41.58)	1.00 (0.49, 2.01)	0.99
Six months after training	17 (35.42)	24 (23.76)	1.76 (0.83, 3.72)	0.14