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Table 5 Answers to quantitative clinical questions by residents and the expert

From: Can we improve transthoracic echocardiography training in non-cardiologist residents? Experience of two training programs in the intensive care unit

Quantitative questionsa CCC (95 % CI) Bias ± SD
Group I Group II p* Group I Group II
LVEF (%) (n = 133/n = 154) 0.78 (0.70–0.83) 0.82 (0.77–0.87) 0.34 3.1 ± 9 1.3 ± 8.8
LVOT VTI (cm) (n = 92/n = 120) 0.61 (0.48–0.71) 0.65 (0.54–0.74) 0.65 −2.1 ± 4.8 −1.4 ± 4.7
Ratio E/A (n = 87/n = 95)b 0.38 (0.20–0.54) 0.73 (0.62–0.81) 0.01 −0.1 ± 0.4 0 ± 0.3
Ratio E/e′ (n = 104/n = 98)b 0.53 (0.38–0.65) 0.75 (0.65–0.83) 0.049 0.8 ± 3.4 0.4 ± 2.2
Aortic peak velocity (m/s) (n = 73/n = 117) 0.43 (0.25–0.68) 0.82 (0.76–0.86) 0.01 0.1 ± 0.5 0.1 ± 04
  1. A late transmitral velocity, E early transmitral velocity, e′ lateral early diastolic velocity of the myocardium at the level of the lateral mitral annulus, CCC concordance correlation coefficient, LVEF left ventricular ejection fraction, LVOT left ventricular outflow tract, SD standard deviation, VTI velocity time integral
  2. * Comparison of CCC values between group I and group II
  3. aThe number of comparisons is noted for each quantitative clinical question and for each group: group I/group II
  4. bSinus rhythm