Table 2.
Comparison of clinical parameters between patients with MEWS <4 and MEWS ≥4
| Parameters | All, n (%) | MEWS <4 | MEWS ≥4 | P value |
| n=383 | n=225 | n=158 | ||
| Age, mean (SD) | 59.6 (18.3) | 57.9 (16.9) | 62.1 (19.9) | 0.008 |
| Gender | 0.430 | |||
| Male | 255 (66.6) | 159 (70.7) | 96 (60.8) | |
| Female | 128 (33.4) | 66 (29.3) | 62 (39.2) | |
| Physiology, mean (SD) | ||||
| Temperature (°C) | 37.2 (1.0) | 36.9 (0.6) | 37.6 (1.2) | <0.001 |
| SBP (mm Hg) | 136.6 (33.6) | 140.9 (29.6) | 130.3 (37.9) | 0.001 |
| DBP (mm Hg) | 80.3 (21.1) | 82.8 (18.4) | 76.80 (24.0) | 0.002 |
| Heart rate (bpm) | 95.2 (30.8) | 80.7 (15.4) | 116.0 (35.0) | <0.001 |
| Respiratory rate (bpm) | 23.1 (6.3) | 20.7 (3.0) | 26.6 (7.9) | <0.001 |
| SPO2 median (IQR) | 99.0 (4) | 99 (2) | 98 (5) | <0.001 |
| BS median (IQR) | 8.0 (3.4) | 8.0 (3.2) | 8.2 (3.6) | 0.461 |
| LOS median (IQR) | 12 (11) | 11 (9) | 14 (14) | 0.068 |
| Mental status | <0.001 | |||
| Alert | 280 (73.1) | 193 (85.8) | 87 (55.1) | |
| Reacting to voice | 39 (10.1) | 21 (9.3) | 18 (11.4) | |
| Reacting to pain | 32 (8.4) | 10 (4.4) | 22 (13.9) | |
| Unresponsive | 32 (8.4) | 1 (0.4) | 31 (19.6) | |
| Triage level | <0.001 | |||
| Level 1 | 69 (18.0) | 8 (3.6) | 61 (38.6) | |
| Level 2 | 208 (54.3) | 119 (52.9) | 89 (56.3) | |
| Level 3 | 106 (27.7) | 98 (43.6) | 80 (5.1) | |
| Survivors | 331 (86.4) | 218 (96.9) | 113 (71.5) | <0.001 |
| Non-survivors | 52 (13.6) | 7 (3.1) | 45 (28.5) | <0.001 |
bpm, beats or breaths per minute; BS, blood sugar; DBP, diastolic blood pressure; LOS, length of stay; MEWS, Modified Early Warning Score; SBP, systolic blood pressure; SPO2, percutaneous oxygen saturation.