Table 4.

Associations of overweight versus normal weight patients with mortality and management strategies in three multilevel logistic regression models

	Crude events
Characteristic	Normal weight	Overweight	Model 1a	Model 2b	Model 3c
	n (%)	n (%)	aOR (95%CI, p-value)	aOR (95%CI, p-value)	aOR (95%CI, p-value)
ICU mortality	553 (11)	437 (10)	0.93 (0.81–1.06, 0.29)	0.88 (0.73–1.05, 0.16)	0.88 (0.73–1.06, 0.18)
Management	–	–	–	–	–
Mechanical ventilation	1175 (23)	935 (21)	0.93 (0.84–1.03, 0.14)	0.96 (0.83–1.11, 0.58)	–
Vasopressor use	1708 (33)	1431 (33)	0.99 (0.90–1.08, 0.79)	0.94 (0.83–1.08, 0.40)	–

aOR adjusted odds ratio, BMI body mass index, CI confidence interval, ICU intensive care unit, SOFA Sepsis-related organ failure assessment

^aModel 1: ICU cluster as random effect

^bModel 2: Model 1 plus patient level (age, creatinine concentration, ethnics, heart rate, infection focus, lactate concentration, sex, SOFA score)

^cModel 3: Model 2 plus management strategies (mechanical ventilation, vasopressor use)