Obesity and overweight as a risk factor for pneumonia in polytrauma patients: A retrospective cohort study


This publication doesn't include Faculty of Sports Studies. It includes Faculty of Medicine. Official publication website can be found on muni.cz.


Year of publication 2013
Type Article in Periodical
Magazine / Source Journal of Trauma and Acute Care Surgery
MU Faculty or unit

Faculty of Medicine

Doi http://dx.doi.org/10.1097/TA.0b013e31829a0bdd
Field Surgery incl. transplantology
Keywords BMI; CRP; Murray score; pneumonia; Polytrauma
Description BACKGROUND: Obesity is a growing problem in western societies. The aim of this retrospective cohort study was to determine the association between the overweight and obese polytrauma patients and pneumonia after injury. METHODS: A total of 628 patients with an Injury Severity Score (ISS) of 16 or greater and 16 years or older were included in this retrospective study. The sample was subdivided into three groups as follows: body mass index (BMI) of less than 25 kg/m; BMI of 25 kg/m2 to 30 kg/m2; and BMI more than 30 kg/m2. The Murray score was assessed at admission and at its maximum during hospitalization to determine pulmonary problems. Pneumonia was defined as bacteriologically positive sputum with appropriate radiologic and laboratory changes (C-reactive protein and interleukin 6). Data are given as mean +/- SEM. One-way analysis of variance and the Kruskal-Wallis test were used for the analyses, and the significance level was set at p < 0.05; Bonferroni-Dunn test was performed as post hoc analysis. RESULTS: The Abbreviated Injury Scale (AIS) score for the thorax was 3.2 +/- 0.1 in the group with a BMI of less than 25 kg/m, 3.3 +/- 0.1 in the group with a BMI of 25 kg/m2 to 30 kg/m, and 2.8 +/- 0.2 in the group with BMI of more than 30 kg/m 2 (p = 0.044). The Murray score at admission was elevated with increasing BMI (0.8 +/- 0.8 for BMI < 25 kg/m2, 0.9 +/- 0.9 for BMI 25-30 kg/m2, and 1.0 +/- 0.8 for BMI > 30 kg/m2; p = 0.137); the maximum Murray score during hospitalization revealed significant differences (1.2 +/- 0.9 for BMI < 25 kg/m 2, 1.6 +/- 1.0 for BMI 25-30 kg/m2, and 1.5 +/- 0.9 for BMI > 30 kg/m; p < 0.001). The incidence of pneumonia also increased with increasing BMI (1.6% for BMI < 25 kg/m2, 2.0% for BMI 25-30 kg/m2, and 3.1% for BMI > 30 kg/m2; p = 0.044). CONCLUSION: Obesity leads to an increased incidence of pneumonia in a polytrauma situation.

You are running an old browser version. We recommend updating your browser to its latest version.

More info