Morbidity and Mortality in Jeju Residents over 50-Years of Age with Hip Fracture with Mean 6-Year Follow-Up: A Prospective Cohort Study

• Published in: Journal of Korean medical science Vol. 28; no. 7; pp. 1089 - 1094
• Main Authors: Lee, Sung-Rak, Ha, Yong-Chan, Kang, Hyun, Park, Yong-Geun, Nam, Kwang Woo, Kim, Sang-Rim
• Format: Journal Article
• Language: English
• Published: Korea (South) The Korean Academy of Medical Sciences 01.07.2013; 대한의학회
• Subjects: Age Factors; Aged; Aged, 80 and over; Aging; Cohort Studies; Female; Hip Fractures - epidemiology; Hip Fractures - mortality; Humans; Male; Original; Prospective Studies; Republic of Korea - epidemiology; Risk Factors; Sex Factors; 의학일반; Republic of Korea; Hip Fracture; Standardized Mortality Ratio; Risk Factor; Mortality; Morbidity
• ISSN: 1011-8934; 1598-6357; 1598-6357
• DOI: 10.3346/jkms.2013.28.7.1089

This prospective cohort study was performed to estimate the morbidity and mortality with 790 patients over 50-yr of age that sustained a femoral neck or intertrochanteric fracture from 2002 to 2006, followed-up for a mean of 6 yr (range, 4 to 9 yr). Crude and annual standardized mortality ratios (SMRs) were calculated; and mortalities in the cohort and the age and sex matched general population were compared. The risk factors on mortality and activities pre- and post-injury were assessed. Accumulated mortality was 16.7% (132 patients) at 1 yr, 45.8% (337 patients) at 5 yr, and 60% (372 patients) at 8 yr. SMR at 5 yr post-injury was 1.3 times that of the general population. Multivariate analysis demonstrated that age (OR, 1.074; 95% CI, 1.050-1.097; P<0.001), woman (OR, 1.893; 95% CI, 1.207-2.968; P=0.005), and medical comorbidity (OR, 1.334; 95% CI, 1.167-1.524 P<0.001) were independently associated with mortality after hip fracture. Only 59 of the 150 patients (39.3%) who were able to ambulate normally outdoors at preinjury retained this ability at final follow-up. Patients with a hip fracture exhibits higher mortality at up to 5 yr than general population. Age and a preinjury comorbidity are associated with mortality.