Letter to the Editor: Risk Factors for Mortality and Morbidity in Elderly Patients Presenting with Digestive Surgical Emergencies
The recent article by Hentati et al.  determining the predictors of mortality and morbidity following emergency digestive surgery in patients aged 80 years and older was of great interest. By multivariate binary logistic regression analysis, they show that pulmonary disease, bowel ischemia, postoperative ICU stay and the occurrence of postoperative complications are predictors of 90-day mortality, but an age ≥80 years is not associated with 90-day mortality. Other than the limitations described in discussion section, we note that some methodological issues seem important to avoid any optimistic interpretation or misinterpretation of results.
First, multivariate analysis shows that preoperative hemoglobin < 12 g/dL is a predictor of in-hospital morbidity. In patients’ demographic data, however, only mean preoperative hemoglobin levels were provided and compared. According to World Health Organization criteria,1preoperative anemia is defined as a hemoglobin level <12.0 g/dl for...
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Conflict of interest
All authors have no financial support and potential conflicts of interest for this work.
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