Variable Adjusted Relative Risk Measure (95 % CI) Hazards Ratio or Odds Ratio 95 % CI P-value Duration of mechanical ventilationa 1.36 1.01-1.81 0.04* Initiation of enteral feeding on ICU day 0b 0.87 0.54-1.41 0.57 Initiation of enteral feeding by ICU day 1b 0.96 0.58-1.60 0.87 Initiation of enteral feeding by ICU day 2b 1.17 0.68-2.02 0.58 Initiation of enteral feeding by ICU day 3b 1.15 0.64-2.04 0.65 Duration of hospital stay for survivorsa 1.14 0.91-1.43 0.27 aHazards Ratio bOdds Ratio *: p < 0.05, **: p < 0.01 CI: Confidence Interval A Hards Ratio > 1 indicates a shorter duration of mechanical ventilation or shorter duration of hospital stay for survivors in high-intensity ICU. The Odds Ratio indicates the incidence of enteral feeding for the low-intensity ICU versus high-intensity ICU

Table 3: Results of Cox proportional hazards analysis and multiple logistic analysis.