Demographics and clinical characteristics of patients with an initial high-sensitivity troponin (hs-cTn) level below the limit of detection (LoD) in the randomised controlled trial cohort and qualitative interview sample
| All low-risk* trial patients n=274 (%) | Interview patients n=11 (%) | |
| LoDED intervention arm | 141 (51.5%) | 9 (81.8%) |
| Mean age | 46 years | 53 years |
| Gender: female | 144 (52.5%) | 6 (54.5%) |
| Gender: male | 130 (47.5%) | 5 (45.5%) |
| Ethnic origin: white | 228 (84%) | 11 (100%) |
| Chest pain history (clinician reported) | ||
| Slightly suspicious | 175 (64%) | 6 (54.6%) |
| Moderately suspicious | 77 (28%) | 4 (36.4%) |
| Highly suspicious | 22 (8%) | 1 (9%) |
| Successful early discharge† | 165 (61.3%) | 9 (82%) |
| Median LOS hours (IQR)† | 3.7 (2.8–5.2) | 3.5 (2.7–3.8) |
*Low-risk patients were those with an initial hs-cTn below the LoD and a non-ischaemic ECG in either trial arm.
†Successful early discharge data available for 269/274 low-risk patients.
‡Length of stay (LOS; hours) data available for 268/274 low-risk patients.
LoDED, limit of detection and ECG discharge strategy.