Table 3.
Correlation between NUTRIC candidate variables and ventilator-free days within 28 days
| Variable | Spearman correlation | P values | Number of observations |
|---|---|---|---|
| Age | 0.1891 | < 0.0001 | 598 |
| Baseline APACHE II score | 0.3914 | < 0.0001 | 598 |
| Baseline SOFA | 0.3857 | < 0.0001 | 594 |
| % Oral intake (food) in the week prior to enrollment | 0.1676 | 0.0234 | 183 |
| number of days in hospital prior to ICU admission | 0.1387 | 0.0007 | 598 |
| % of weight loss in the last three months | 0.1828 | 0.0130 | 184 |
| Baseline BMI | 0.0581 | 0.1671 | 567 |
| # of co-morbidities at baseline | 0.0832 | 0.0420 | 598 |
| Baseline CRP | 0.1539 | 0.0002 | 589 |
| Baseline Procalcitonin | 0.3189 | < 0.0001 | 582 |
| Baseline IL-6 | 0.2908 | < 0.0001 | 581 |
APACHE II, Acute Physiology and Chronic Health Evaluation; CRP, C-reactive protein; SOFA, Sequential Organ Failure Assessment, ICU: Intensive Care Unit.