| Background: Obesity is a severe multifactorial disorder that carries high morbidity and mortality.
Objectives: This study aimed to evaluate the possible association between bodymass index (BMI) andmortality in patients admitted
to intensive care units (ICU).
Methods: In this cross-sectional study, all patients admitted to the ICU were studied. The demographic characteristics, ICU, and
hospital length of stay, organ failure, mortality, duration of mechanical ventilation, the occurrence of nosocomial infection, and
type of admission were recorded for all patients. Patients were categorized based on their BMI.
Results: In total, 502 patients were studied who 53.2% of them weremale. Most of the death (28.6%) were recorded in the obesity class
II patients, while the lowest rate (3.9%) was for the normal-weight patients (P value < 0.001). The APACHE II and waist circumference
had a statistically significant association with the mortality rate (P value < 0.001). After adjusting for age and gender, a significant
association was found between waist circumference and mortality rate (OR = 1.15, 95% CI = 1.03 - 1.29; P value = 0.014), APACHE II score,
and mortality rate (OR = 2.79, 95% CI = 1.91 - 4.07, P value < 0.001); but there was no significant association between BMI and mortality
rate.
Conclusions: This study demonstrated that BMI is associated with an increased risk of mortality, regardless of age and gender.
However, after adjusting for age and gender as confounding factors, BMI didn’t have a significant effect on mortality, while the
APACHE II score and waist circumference affected the mortality rate. |