Table 1.
Baseline characteristics and comparisons between study groups
| Total (n = 132) | Gait independence (n = 84) | Gait dependence (n = 48) | p value | |
|---|---|---|---|---|
| Age (years) | 69 [60–78] | 67 [54–75] | 76 [67–82] | < .0001 |
| Male sex (%) | 84 (63.6) | 56 (66.7) | 28 (58.3) | 0.340 |
| Weight (kg) | 57 [50–70] | 58 [51–69] | 57 [49–73] | 0.406 |
| Body mass index (kg/m2) | 22 [20–26] | 23 [20–26] | 21.7 [19–27] | 0.609 |
| Charlson’s Comorbidity Index | 2 [1–3] | 2 [1–3] | 1 [1–3] | 0.612 |
| Main cause of ICU admission (%) | ||||
| Respiratory (including pneumonia) | 25 (18.9) | 15 (17.8) | 10 (21.3) | 0.457 |
| Cardiovascular | 23 (17.4) | 15 (17.8) | 8 (16.6) | |
| Gastrointestinal | 20 (15.2) | 13 (15.5) | 7 (14.5) | |
| Trauma | 18 (13.6) | 10 (11.9) | 8 (16.6) | |
| Sepsis, nonpulmonary | 17 (12.9) | 12 (14.3) | 5 (10.3) | |
| Other | 29 (22.0) | 19 (22.7) | 10 (20.7) | |
| APACHE II score | 24 [20–29] | 23 [18–27] | 24 [20–30] | 0.129 |
| SOFA score at ICU admission | 9 [7–11] | 9 [7–11] | 9 [8–12] | 0.217 |
Median [25th–75th percentile] or the number of patients (percentage). Independent-sample Mann-Whitney U test or χ2 test. APACHE II Acute Physiology and Chronic Health Evaluation, SOFA Sequential Organ Failure Assessment