• Yasuhiro Ishidou, Chihaya Koriyama, Hironori Kakoi, Takao Setoguchi, Satoshi Nagano, Masataka Hirotsu, Takuya Yamamoto, Masahiro Yokouchi, and Setsuro Komiya.
• Department of Medical Joint Materials, Kagoshima University, Kagoshima, Japan.
• Geriatr Gerontol Int. 2017 Mar 1; 17 (3): 391-401.

AimGiven that different hospitals achieve different outcomes, optimal evaluation of treatment outcomes in the local community requires evaluation of many institutions in that area. We carried out a prospective multicenter cohort study in Kagoshima Prefecture to identify factors that contribute to deterioration in activities of daily living performance and patient mortality 1 year after surgical treatment of hip fractures.MethodsWe prospectively enrolled 387 patients who underwent surgery for hip fractures in 33 registered facilities within a 6-month period from February to July 2007. Logistic regression analysis was carried out to identify factors that contribute to deterioration in activities of daily living performance and death within 1 year after surgery.ResultsAn increased risk of Barthel Index (BI) deterioration was associated with increased age (P for trend = 0.003), worse pre-injury BI (P for trend = 0.021), trochanteric fractures (OR 2.07, 95% CI 1.31-3.27), worse BI at discharge (P for trend < 0.001) and postoperatively developed cognitive impairment (OR 6.34, 95% CI 2.15-18.7). The OR for BI deterioration in patients with newly-diagnosed disease after discharge was approximately 9.16 (95% CI 4.03-20.8). No factors except age and sex were statistically significant as the preoperative indicators of mortality risk. Only BI at discharge was a significant determinant of mortality risk (P for trend = 0.013) after adjusting for the effects of age and sex.ConclusionsPatients with poor activities of daily living performance at the time of hospital discharge were likely to show poor functional recovery and a high 1-year postoperative mortality. Geriatr Gerontol Int 2017; 17: 391-401.© 2016 Japan Geriatrics Society.

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