Table 1. Basic characteristics of patients and ECGs in collective intelligence system and conventional system in a referrring hospital.
| Patient and ECG characteristics | Collective intelligence system (interMD) (n=159) | Conventional system (n=217) | p value | ||
|---|---|---|---|---|---|
| Age | 66.3±14.7 | 69.5±13.8 | 0.041 | ||
| Sex (female %) | 41.7 | 41.9 | 0.960 | ||
| Referral (primary physician, %) | 78.5 | 54.3 | <0.001 | ||
| Responder (specialty, %) | <0.001 | ||||
| Internal medicine | |||||
| General internal medicine | 46.8 | 0 | |||
| Cardiologist | 1.7 | 100 | |||
| Occupational medicine | 17.3 | 0 | |||
| Emergency medicine | 34.2 | 0 | |||
| Medical emergency | |||||
| MI, VF, VT, TdP | 1.5±5.6 | 3.6±2.4 | 0.041 | ||
| ECG reading (%) | |||||
| Sinus rhythm | 52.1 | 11.5 | <0.001 | ||
| Tachycardia | 16.0 | 17.5 | 0.775 | ||
| Bradycardia | 13.9 | 18.4 | 0.312 | ||
| Atrial fibrillation | 9.0 | 50.2 | <0.001 | ||
| Premature beats (PAC, PVC) | 4.2 | 8.3 | 0.137 | ||
| ST segment abnormality | 8.3 | 6.5 | 0.536 | ||
ECG = electrocardiography; MI = myocardial infarction; PAC = premature atrial contraction; PVC = premature ventricular contraction; TdP = torsades de pointes; VF = ventricular fibrillation; VT = ventricular tachycardia.