Kichloo, AsimSingh, JagmeetDahiya, Dushyant S.Perisetti, AbhilashShaka, HafeezInamdar, SumantBackground We aimed to evaluate the characteristics of hospitalizations for radiation proctitis(RP). Methods The National Inpatient Sample (NIS) was analyzed to identify RP hospitalizations for2016 and 2017. Outcomes included mortality, predictors of mortality, mean length of stay (LOS), mean total hospital cost (THC), and numerous system-based complications. Results We identified 16,810 adult hospitalizations for RP. On admission, an initial diagnosis of RP was established for only 27.54% of these patients. The mean age was 72.3±0.5 years and 30.2% of the study population was female. Whites made up 68.7% of the study population. Most  hospitalizations for RP were at large (51%), urban (93.6%), and teaching (71.1%) hospitals. The inpatient mortality for RP hospitalizations was 1.7%. After adjusting for biodemographic factors, hospitalization characteristics and comorbidities, older age and protein energy malnutrition (PEM) were associated with higher odds of inpatient mortality. The mean LOS and THC for RP hospitalizations were 5.6 days and $53,800, respectively. Inpatient complications associated with RP included acute renal failure (19.7%), sepsis (4.4%), deep vein thrombosis (3.7%), acute respiratory failure (3.3%), and pulmonary embolism (0.7%). Conclusions Inpatient mortality for RP was 1.7%. Older age and PEM were associated with higher odds of inpatient mortality. Keywords Proctitis, radiation, predictors, outcomes, mortality Ann Gastroenterol 2022; 35 (1): 63-67text/htmlapplication/pdfhttp://www.annalsgastro.gr/index.php/annalsgastro/article/view/6401engHellenic Society of GastroenterologyCopyright (c) 2022 Annals of Gastroenterology1792-74631108-7471Annals of Gastroenterology; Volume 35, No 1 (2022); 63Radiation proctitis: predictors of mortality and inpatient outcomes in the United Statesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion2022-01-10Δημοσίευση σε περιοδικόPublication in journalΓαστροεντερολογίαGastroenterologyisi -Gastroenterology & Hepatology covers resources on the anatomy, physiology, biochemistry, and pathology of the digestive system. This category includes specific resources on the prognosis and treatment of digestive diseases; stomach ulcers; metabolic, genetic, infectious and chemically induced diseases of the liver; colitis; diseases of the pancreas and diseases of the rectum.Επιστημονικό άρθροScientific articleΕλληνική Γαστροεντερολογική ΕταιρίαGreek Aggregator OpenArchives.gr | National Documentation Centre (EKT)other