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. 2012 Jul;87(7):652-8.
doi: 10.1016/j.mayocp.2012.01.020.

The Elders Risk Assessment Index, an electronic administrative database-derived frailty index, can identify risk of hip fracture in a cohort of community-dwelling adults

Mohammad Albaba  1 , Stephen S Cha, Paul Y Takahashi
Affiliations

The Elders Risk Assessment Index, an electronic administrative database-derived frailty index, can identify risk of hip fracture in a cohort of community-dwelling adults

Mohammad Albaba et al. Mayo Clin Proc. 2012 Jul.

Abstract

Objective: To determine whether an Elders Risk Assessment (ERA) index can predict incident hip fractures without the need for physician-patient encounter or bone mineral density testing.

Patients and methods: A retrospective cohort study was conducted in a community-based cohort of 12,650 patients aged 60 years and older. An ERA score was computed for each subject at index time (January 1, 2005). Incidents of hip fracture from January 1, 2005, through December 31, 2006, were obtained from electronic medical records. We divided the cohort into 5 groups, with the lowest ERA scores forming group A (<15%); 15% to 49%, group B; 50% to 74%, group C; 75% to 89%, group D; and the top 11%, group E. With group A as a reference group, we used logistic regression to compute odds ratios of sustaining hip fracture during a 2-year period (January 1, 2005, through December 31, 2006) for groups B, C, D, and E. Sensitivity and specificity of each possible ERA score were calculated, and a receiver operating characteristic curve was created.

Results: Two hundred sixty-five patients (2.1%) sustained at least 1 hip fracture from January 1, 2005, through December 31, 2006. Odds ratios (95% confidence intervals) for groups B, C, D, and E were 1.6 (0.7-3.4), 4.5 (2.2-9.4), 6.9 (3.3-14.3), and 18.4 (8.9-37.9), respectively. The area under the receiver operating characteristic curve was 74.5%.

Conclusion: An electronic medical record-based, easily derived ERA index might be useful in hip fracture risk stratification.

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Figures

FIGURE 1
FIGURE 1
Percentage distribution of 265 participants with hip fracture by Elders Risk Assessment (ERA) score groups.
FIGURE 2
FIGURE 2
Operating characteristics of the Elders Risk Assessment (ERA) for predicting hip fracture.
See this image and copyright information in PMC

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