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The body mass index as a prognostic factor of critical care

Title
The body mass index as a prognostic factor of critical care
Authors
Lim S.Y.Kim S.I.Ryu Y.J.Lee J.H.Chun E.M.Chang J.H.
Ewha Authors
장중현이진화천은미류연주
SCOPUS Author ID
장중현scopus; 이진화scopus; 천은미scopus; 류연주scopus
Issue Date
2010
Journal Title
Korean Journal of Internal Medicine
ISSN
1226-3303JCR Link
Citation
vol. 25, no. 2, pp. 162 - 167
Indexed
SCIE; SCOPUS; KCI scopus
Abstract
Background/Aims: Obesity is a worldwide concern, but its influence on critical care outcomes is not well understood. We tested the hypothesis that abnormal body mass index (BMI) would be an independent predictor of higher mortality rates in intensive care unit (ICU).&Methods: We retrospectively reviewed patients who had admitted to the ICU from January 2007 to December 2007. Admission BMI was analyzed as both a three categorical (underweight, < 18.5 kg/m2; normal weight, 18.5 to 24.9 kg/m2; overweight and obese, ≥ 25 kg/m2) and continuous variables among all patients with an ICU lenth of stay ≥ 4 days. The primary outcome was ICU mortality.&Results: The multivariate analysis on ICU mortality selected Mortality Prediction Model-Admission (MPM at time zero) (hazard ratio [HR], 1.024; p = 0.001; 95% confidence interval [CI], 1.010 to 1.037), failed extubation (HR, 5.092; p = 0.0001; 95% CI, 2.742 to 9.456) as significant risk factors. When controlling these variables, none of the BMI group and BMI as a continuous variable had an independent association with ICU mortality.&Conclusions: BMI did not have a significant influence on ICU mortality. The ICU mortality was influenced more strongly by severity of illness and failed extubation rather than BMI.
DOI
10.3904/kjim.2010.25.2.162
Appears in Collections:
의학전문대학원 > 의학과 > Journal papers
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