Table 1 Demographic, admission and clinical data from study 1 and study 2 a
| Â | Range | |
|---|---|---|
Characteristics | Study 1: MRC-SS interobserver agreement (n= 20) | Study 2: MRC-SS clinical predictive value (n= 94) |
Age (years) | 67.5 (51.8 to 75.0) | 66.0 (54.8 to 76.3) |
Gender (M:F), n | 12:8 | 64:30 |
APACHE II score | 19.5 (15.5 to 24.0) | 17.0 (15.0 to 22.0) |
Admission type | Â | Â |
   Medical (%) | 70.0 | 78.7 |
   Surgical (%) | 30.0 | 21.3 |
Comorbidities | Â | Â |
   Chronic respiratory disease (%) | 50.0 | 27.7 |
   Cardiac disease (%) | 65.0 | 55.3 |
   Chronic renal disease (%) | 5.0 | 4.0 |
   Chronic liver disease (%) | 0.0 | 10.6 |
Total MV (days) | 25.5 (21.0 to 44.0) | 7.0 (4.0 to 16.0) |
Total MV prior to MRC-SS testing (days) | 21.0 (6.8 to 42.0) | 5.0 (3.0 to 9.5)b |
ICU LOS total (days) | 33.5 (25.5 to 58.0) | 11.0 (6.0 to 25.3) |
ICU LOS prior to MRC-SS testing (days) | 24.0 (6.8 to 43.3) | N/A |
Hospital LOS total (days) | 52.5 (31.5 to 85.3) | 27.0 (11.8 to 50.0) |
Hospital LOS prior to MRC-SS testing (days) | 23.5 (7.5 to 43.8) | N/A |