Table 4 The effect of blended learning versus conventional teaching on confidence and competence in ECG analysis and interpretation

 “I find ECG analysis and interpretation difficult”

53.7%

18.8%

< 0.001

Basic analysis (QRS rate, width and axis) and rhythm and waveform abnormalities ^a

50.3%

75.2%

< 0.001

 “I am confident in analysing an ECG with bradycardia”

91.0%

93.8%

0.560

Sinus arrest with escape rhythm, Mobitz type I and II second degree AV block, third degree AV block, hyperkalaemia

41.2%

75.6%

< 0.001

 “I am confident in analysing an ECG with tachycardia”

89.6%

84.4%

0.378

Atrial fibrillation with uncontrolled rate, atrial flutter, AV node re-entry tachycardia, ventricular tachycardia

45.8%

57.3%

0.021

 “I am confident in analysing an ECG with an irregular rhythm”

56.7%

62.5%

0.500

Sinus arrhythmia, Mobitz type I and II second degree AV block, atrial fibrillation with controlled and uncontrolled rate

50.4%

77.3%

< 0.001

 “I am confident in analysing the P wave”

64.1%

93.8%

< 0.001

Left and right atrial enlargement

58.2%

84.4%

< 0.001

 “I am confident in analysing the PR interval”

49.3%

64.1%

0.087

First degree AV block, Mobitz type I second degree AV block, third degree AV block

44.8%

81.3%

< 0.001

 “I am confident in analysing the QRS morphology”

9.0%

56.3%

< 0.001

Left and right bundle branch block, Wolff-Parkinson-White pattern, left and right ventricular hypertrophy

53.2%

77.1%

< 0.001

 “I am confident in analysing the ST segment”

41.8%

67.2%

0.004

Anterior and inferior ST-segment elevation myocardial infarction (STEMI), pericarditis

46.2%

78.6%

< 0.001