• Irene Isabel López-Torres, Pablo Sanz-Ruiz, Nuria Montero-Fernández, Francisco Chana, Jose Antonio Serra-Rexach, Antonio Benjumea-Carrasco, and Javier Vaquero-Martín.
• Hospital General Universitario Gregorio Marañón. C/ Doctor Esquerdo 46, 28007 Madrid, Spain. Electronic address: irene.lopeztorres@gmail.com.
• Injury. 2020 Apr 1; 51 Suppl 1: S25-S29.

BackgroundThe increase in life expectancy has led to the appearance of a subgroup of hip fracture (HF) patients with special characteristics known as centenarians. The aim of the present study is to analyse the demographic characteristics, complications and mortality rate of this subgroup in order to identify the specific risk factors for mortality in these patients.MethodsRetrospective analysis of 69 patients (58 women and 11 men) aged 100 years or older admitted to a tertiary hospital for HF between 1999 and 2018.ResultsThe average age was 101.3 years (100-108, median 101). More than half (62.3%) of all patients presented with extracapsular fractures. The most common complications observed were delirium (52.3%) and urinary retention (27.7%). Haematoma (9.2%) was the most common surgical complication. Only 3 patients (7.3%) changed their place of residence after admission. In-hospital, 30-day and 1-year mortality rates were 13.8%, 21.5% and 54.2%, respectively. A high Charlson Comorbidity Index and baseline Functional Ambulation Classification (FAC) <3 were associated with a higher in-hospital mortality rate (OR = 1.95 95% CI [1.03-3.69] and OR = 5.7 95% CI [1.2-26.8]), respectively. The presence of more than 3 comorbidities and baseline FAC <3 were associated with a higher risk of 30-day mortality (OR = 6, 95% CI [1.4-24.7] and OR = 4, 95% CI [1.13-14.2]), respectively. Dementia has been associated with a higher risk of 30-day and 1-year mortality (OR = 4.6, 95% CI [1.2-16.7]) and OR = 5.11, 95% CI [1.6-21]) respectively.ConclusionFAC score, number of comorbidities, dementia and the Charlson Comorbidity Index have been shown to be risk factors of mortality in centenarians with HF.Copyright © 2020 Elsevier Ltd. All rights reserved.

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