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Comparative Study
. 2013 Jan;6(1):40-6.
doi: 10.1161/CIRCHEARTFAILURE.112.969477. Epub 2012 Dec 10.

Low numeracy is associated with increased odds of 30-day emergency department or hospital recidivism for patients with acute heart failure

Candace D McNaughton  1 , Sean P Collins, Sunil Kripalani, Russell Rothman, Wesley H Self, Cathy Jenkins, Karen Miller, Patrick Arbogast, Allen Naftilan, Robert S Dittus, Alan B Storrow
Affiliations
Comparative Study

Low numeracy is associated with increased odds of 30-day emergency department or hospital recidivism for patients with acute heart failure

Candace D McNaughton et al. Circ Heart Fail. 2013 Jan.

Abstract

Background: More than 25% of Medicare patients hospitalized for heart failure are readmitted within 30 days. The contributions of numeracy and health literacy to recidivism for patients with acute heart failure (AHF) are not known.

Methods and results: A cohort of patients with acute heart failure who presented to 4 emergency departments between January 2008 and September 2011. Research assistants administered subjective measures of numeracy and health literacy; 30-day follow-up was performed by phone interview. Recidivism was defined as any unplanned return to the emergency department or hospital within 30 days of the index emergency department visit for AHF. Multivariable logistic regression adjusting for patient age, sex, race, insurance status, hospital site, days eligible for recidivism, chronic kidney disease, abnormal hemoglobin, and low ejection fraction evaluated the relation between numeracy and health literacy with 30-day recidivism. Of the 709 patients included in the analysis, 390 (55%) had low numeracy skills and 258 (37%) had low literacy skills. Low numeracy was associated with increased odds of recidivism within 30 days (adjusted odds ratio, 1.41; 95% confidence interval, 1.00-1.98; P=0.048). For low health literacy, adjusted odds ratio of recidivism was 1.17 (95% confidence interval, 0.83-1.65; P=0.37).

Conclusions: Low numeracy was associated with greater odds of 30-day recidivism. Further investigation is warranted to determine whether addressing numeracy and health literacy may reduce 30-day recidivism for patients with acute heart failure.

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Figures

Figure 1
Figure 1
Inclusion and Exclusion Criteria
Figure 2
Figure 2
Numeracy and Predicted 30-day Emergency Department and Hospital Recidivism*, n=673 * Adjusted for age, gender, race, insurance, presence of diabetes, chronic kidney disease, abnormal hemoglobin, low ejection fraction, study site, and maximum number of days known to be eligible for recidivism; higher Numeracy Scores indicate higher numeracy skills
Figure 3
Figure 3
Literacy and Predicted 30-day Emergency Department and Hospital Recidivism*, n=702 * Adjusted for age, gender, race, insurance, presence of diabetes, chronic kidney disease, abnormal hemoglobin, low ejection fraction, study site, and maximum number of days known to be eligible for recidivism; higher Literacy Scores indicate higher health literacy skills
See this image and copyright information in PMC

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