Survival Analysis after Hip Fracture in Chile in Patients Over 50 Years Old: A Comparative Analysis between a Private and a Public Health Center

Background: Hip fracture is a frequent pathology in patients over the age of 50. This study aimed to analyze the survival of patients older than 50 years after hip fracture. Treatment at a private health center (PRH) may be associated with lower one-year mortality and longer median survival time after hip fracture (adjusted by gender and age) compared to a public health center (PLH). Methods: A survival analysis study was designed and approved by our institutional ethics review board. PRH and PLH patients who were coded with a diagnosis of hip fracture were included in this study. In the PRH, the corrective operation was performed between 2002 to 2018; in the PLH, the corrective operation was conducted from 2012 to 2018. One-year mortality was estimated by logistic regression; meanwhile, median survival time was estimated by exponential regression. Findings: A total of 2130 patients were included in the PLH cohort, and a total of 1110 patients were included in the PRH. The one-year mean mortality, adjusted by age and gender, was 0·23 (range, 0·21–0·25) in the PLH and 0·16 (range, 0·13–0·18) in the PRH cohort. The median survival time, adjusted by age and gender, was 4·2 years (range, 4·1–4·4) in the PLH and 6·8 years (range, 6·3–7·29) in the PRH cohort. Interpretation: Patients older than age 50 treated in a private health center have a higher median survival time and a lower probability of dying one year after hip fracture. Funding Statement: This study received no funding. Declaration of Interests: The authors declare no competing interests. Ethics Approval Statement: This study was approved by an institutional ethics review board.