Table 2.

Physicians' ECG Interpretation Accuracy by Specialty and Experience

	# of ECG Interpretations	Sens	Spec	PPV	NPV	Kappa	C
Computer algorithm	36	46	83	85	44	n/a	0.65
All participants	4365	65	79	86	53	0.33	0.72
By training level
All residents	1332	61	73	82	48	0.27	0.67
All fellows	1188	63	86	90	54	0.33	0.74
All attendings	1872	70	79	87	57	0.36	0.75
By specialty
Interventional cardiologists	502	70	89	92	59	0.42	0.79
Non‐invasive cardiologists	1505	63	85	90	54	0.41	0.74
All cardiologists	2007	65	86	90	55	0.41	0.75
Cardiology trainees	1080	63	87	90	54	0.4	0.75
Cardiology attendings	936	67	86	90	57	0.43	0.76
Emergency physicians	1259	70	72	83	55	0.3	0.71
All non‐cardiologists	2358	66	73	83	52	0.28	0.7
Non‐cardiology trainees*	1457	61	74	82	49	0.26	0.67
Emergency med attendings	936	74	72	84	58	0.35	0.73

Highest values are bolded. Attendings are physicians board‐certified in their area of specialty. C is the area under the ROC curve. ECG indicates electrocardiogram; NPV, negative predictive values; PPV, positive predictive values; ROC, receiver operating characteristic; Sens, sensitivity; Spec, specificity.

^*Noncardiology trainees were internal medicine and emergency medicine residents and fellows.