Obesity has been associated with increased morbidity and mortality. In addition to that it has been noted to increase the duration of hospital stay and also readmissions for overall admissions. We wanted to find out if obesity was associated with longer duration of stay with a particular patient diagnosis of pneumonia.
It was a retrospective observational study. Chart review was done for all adult patients admitted with a diagnosis of pneumonia for the first 6 months of 2008. BMI > 30 was defined as obesity, and duration of hospital stay was noted. The outcome was to find the difference between duration of stay between obese and nonobese people.
Of the charts reviewed, 198 patients fit our criteria. The sample was slightly more than half male (55%) and had a median age of 73.5 years The median BMI was 27.0 with a median LOS of 4.0 days. None of the continuous measures were significantly associated with another using the Spearman correlation coefficient. Obesity was defined as having a BMI > 30. With this definition, 32.3% of the subjects were obese. Obese and nonobese subjects had an average hospital length of stay of 4.0 (P = 0.6206). Based on the distribution of LOS, that is, skewed, the natural logarithm transformation was used to achieve a distribution that approximated normality. The effect of obesity was then estimated using a linear regression model to control for age and sex, The adjusted effect of obesity was nonsignificant (P = 0.8892).
There was no difference in duration of stay between obese and nonobese people with a diagnosis of pneumonia. This may be related to the association of pneumonia with chronic medical conditions, which have been in turn associated with obesity paradox. Our study found out that the generalization of obesity to longer duration of stay may have to be interpreted with caution, and it may be the reverse in certain medical conditions that are associated with the obesity paradox
M. Eswaran, none; C. Bessinger, none.
To cite this abstract:Eswaran M, Bessinger C. Obesity and Duration of Hospital Stay with Pneumonia. Abstract published at Hospital Medicine 2010, April 8-11, Washington, D.C. Abstract 49. Journal of Hospital Medicine. 2010; 5 (suppl 1). https://www.shmabstracts.com/abstract/obesity-and-duration-of-hospital-stay-with-pneumonia/. Accessed November 17, 2019.