Table 2.
Categorical variables available at the bedside: The cut‐offs for lead I + II voltage, QTc interval and mid‐upper arm circumference were those values with the highest χ 2
| Variable | Number (%) | In‐hospital mortality (%) | Odds ratio | 95% CI | χ 2 | P |
|---|---|---|---|---|---|---|
| Impaired mobility on presentation | 656 (44.1%) | 68 (10.4%) | 10.55 | (5.01‐22.99) | 62.37 | <0.00001 |
| Alert | 1424 (95.8%) | 60 (4.2%) | 0.12 | (0.06‐0.23) | 60.48 | <0.00001 |
| On room air only | 1427 (96.0%) | 62 (4.3%) | 0.13 | (0.07‐0.27) | 47.00 | <0.00001 |
| Lead I + II voltage < 1.8 mV | 789 (53.1%) | 61 (7.7%) | 3.57 | (1.97‐6.54) | 21.16 | <0.00001 |
| QTc interval > 450 ms | 611 (41.1%) | 48 (7.9%) | 2.48 | (1.50‐4.11) | 14.07 | 0.0002 |
| Mid‐upper arm circumference (cm) | 72 (4.8%) | 11 (15.3%) | 3.68 | (1.73‐7.68) | 13.61 | 0.0002 |
| Male gender | 664 (44.7%) | 50 (7.5%) | 2.40 | (1.44‐4.00) | 12.6 | 0.0004 |
| Total | 1486 (100.0%) | 77 (5.2%) | — | — | — | — |