TABLE 3.

Proportional hazards multiple regression models for hazard of death on or after 8 d for INTACT participants¹

Independent variable	β Hat	SE	P	HR (95% CI)
Model 1
Mean kcal/kg received during days 1–72	0.1575	0.0441	0.0004	1.17 (1.07, 1.28)
Time-dependent mean daily kcal/kg received during days 1–7 and after day 82	−0.0967	0.0471	0.04	0.91 (0.83, 1.0)
Model 2
Mean daily g protein/kg received during days 1–73	2.18	0.69	0.002	8.87 (2.3, 34.3)
Time-dependent mean daily g protein/kg received during days 1–7 and after day 83	−1.89	1.00	0.06	0.15 (0.02, 1.07)

¹Models were adjusted for age, sex, and baseline SOFA score, n = 66 (15 deaths). INTACT, Intensive Nutrition in Acute Lung Injury Trial; SOFA, Sequential Organ Failure Assessment.

²Mean increase of 1 kcal/kg.

³Mean increase of 1 g/kg.