Table 6 Association between confounders and time to weaning from invasive mechanical ventilation (cox-type model for calorie intake)
Variable name | HR | LL CI 95% | UL CI 95% | p value | |
|---|---|---|---|---|---|
Predictor variables | Age | 1.00 | 0.99 | 1.00 | 0.245 |
Female vs. male | 1.23 | 0.98 | 1.55 | 0.079 | |
Body weight (kg) | 1.00 | 0.99 | 1.00 | 0.189 | |
Surgical versus non-surgical ICU admission | 1.45 | 1.12 | 1.90 | 0.006 | |
Main reason for ICU admission: Infection (yes vs. no) | 1.25 | 0.99 | 1.59 | 0.066 | |
Main reason for ICU admission: Respiratory (yes vs. no) | 0.59 | 0.46 | 0.75 | < 0.001 | |
Number of severe comorbidities | 1.13 | 1.00 | 1.28 | 0.046 | |
APACHE II | 1.00 | 0.99 | 1.01 | 0.847 | |
Average SOFA score of preceding days (d1–d5) | 0.89 | 0.85 | 0.92 | < 0.001 | |
Sum of preceding days with HAIs (d1–d5) | 0.90 | 0.83 | 0.97 | 0.006 | |
Baseline functional status | 0.97 | 0.91 | 1.03 | 0.316 | |
% of total calories given via the enteral and oral route (d1–d5) | 1.00 | 1.00 | 1.01 | 0.075 | |
Random effect | Study site | < 0.001 |