Table 3:
Primary complaint stratified by prehospital ECG use in patients with EMS-ED linked data (2010–2014).
| Primary Complaint | Total N=1967542 n (%)a | ECG N=643174 n (%)a | No ECG N=1324368 n (%)a |
|---|---|---|---|
| Abdominal pain/problems | 176,073 (9) | 38,877 (6) | 137,196 (10.4) |
| Altered level of consciousness | 68,490 (3.5) | 35,163 (5.5) | 33,327 (2.5) |
| Atypical | 402,474 (20.5) | 78,731 (12.2) | 323,743 (24.5) |
| Cardiac rhythm disturbance | 46,196 (2.4) | 26,674 (4.2) | 19,522 (1.5) |
| Chest pain/discomfort | 189,407 (9.6) | 129,315 (20.1) | 60,092 (4.5) |
| Respiratory arrest | 6,396 (0.3) | 2,161 (0.3) | 4,235 (0.3) |
| Respiratory distress | 196,028 (10) | 60,517 (9.4) | 135,511 (10.2) |
| Syncope/fainting | 68,215 (3.5) | 30,404 (4.7) | 37,811 (2.9) |
| Unknown | 814,263 (41.4) | 241,332 (37.5) | 572,931 (43.3) |
a
n = number of patients with the specified primary complaint in the specified population (Total, ECG, No ECG); % = percentage of patients in the specified population with the specified primary complaint