Table 2.
Points assigned to categories of the thirteen independent factors associated with 30-day mortality in the calculation of the MET risk score. The total score ranged from -9 to 49
| RISK SCORE POINTS (-9 to 49) | ||
|---|---|---|
| Categories | Points | |
| Age (years) | < 30 | -2 |
| 30–39 | 0 | |
| 40–49 | 2 | |
| 50–59 | 4 | |
| 60–69 | 6 | |
| 70–79 | 8 | |
| 80–89 | 10 | |
| ≥ 90 | 11 | |
| Type of ward | Surgical | -4 |
| Other | 0 | |
| SpO2 (%) | > 95 | 0 |
| 90–95 | 2 | |
| < 90 | 4 | |
| RR (breaths/min) | < 15 | -1 |
| 15–24 | 0 | |
| 25–34 | 1 | |
| 35–44 | 3 | |
| ≥ 45 | 4 | |
| RLS | 1 | 0 |
| 2–3 | 3 | |
| ≥ 4 | 5 | |
| pO2 (kPa) | > 20.0 | -1 |
| 10.1–20.0 | 0 | |
| 5.1–10.0 | 1 | |
| ≤ 5.0 | 2 | |
| Haemoglobin (g/l) | ≥ 90 | 0 |
| < 90 | 2 | |
| Glucose (mmol/l) | ≥ 4.2 | 0 |
| < 4.2 | 5 | |
| Lactate (mmol/l) | < 1.0 | -1 |
| 1.0–1.9 | 0 | |
| 2.0–3.9 | 1 | |
| 4.0–7.9 | 3 | |
| ≥ 8.0 | 5 | |
| Liver disease | No | 0 |
| Yes | 2 | |
| Haematological disease | No | 0 |
| Yes | 3 | |
| Cancer | No | 0 |
| Yes | 3 | |
| Renal failure | No | 0 |
| Yes | 3 | |
SpO2 Peripheral capillary oxygen saturation, RR Respiratory rate, RLS Reaction level scale