Health Literacy: An Important Clinical Tool in Heart Failure

Gender differences in the impact of health literacy on hospital readmission among older heart failure patients: A prospective cohort study

AIMS

To investigate the impact of limited health literacy on 1-year hospital readmission among both older men and women with heart failure.

DESIGN

Prospective cohort study.

METHODS

A total of 286 patients with heart failure (men = 144, women = 142) aged 65 years or older at baseline from two tertiary hospitals were enrolled from June-November 2017. Patients were followed up until November 2018. The Brief Health Literacy Screening Tool was used to assess baseline health literacy. One-year readmission after discharge was assessed via medical records or telephone interview. A hierarchical logistic regression was performed.

RESULTS

The prevalence rates of limited health literacy and 1-year hospital readmission among older women were 74.7% and 35.9%, respectively, compared with 48.6% and 27.1% in older men. Limited health literacy significantly increased the risk of 1-year hospital readmission in both older men and women with heart failure. More importantly, older women with limited health literacy had a much higher risk of hospital readmission (odds ratio: 10.17, 95% confidence interval: 2.19-47.14) than did older men with limited health literacy (odds ratio: 5.27, 95% confidence interval: 2.04-13.59).

CONCLUSIONS

Our findings highlight that a baseline assessment of health literacy would help prevent unplanned hospital readmissions after discharge in both older men and women with heart failure. Health professionals should recognize that women with limited health literacy are more vulnerable to re-hospitalization than are men with limited health literacy.

IMPACT

Few studies have addressed gender differences in the link between health literacy and hospital readmission among patients with heart failure. We found that older women with limited health literacy had a much higher risk of hospital readmission than did their male counterparts. Health professionals should be aware of gender differences in health literacy in discharge planning, including self-management counselling for older patients with heart failure.

Assessment of the Readability, Adequacy, and Suitability of Online Patient Education Resources for Benign Vascular Tumours Using the DISCERN Instrument

Objective

This study aims to assess the quality and readability of Internet-based patient resources for vascular tumours in order to understand which areas require improvement.

Methods

A World Wide Web search was performed, in addition to a literature review using PubMed, Ovid MEDLINE, and EMBASE. Any material that contained information on vascular tumours pertaining to patient education was included. We evaluated resources with DISCERN and Flesch Reading Ease scores when applicable. The language of publication was restricted to English and French. This review was registered with PROSPERO (CRD42018087885).

Results

A total of 117 online resources were screened, with 73 resources included in the final analysis. The overall DISCERN rating for the patient resources was 1.8 (0.8). The majority of online resources failed to depict the entire spectrum of benign vascular tumours. The mean Flesch score was 36 (19), which translates to a college-level readability.

Conclusion

The majority of resources were not adequate or comprehensive and were written at a much higher level than the average reader would be expected to comprehend.

Health Literacy and 1-Year Mortality: Mechanisms of Association in Adults Hospitalized for Cardiovascular Disease

OBJECTIVE

To test theorized patient-level mediators in the causal pathway between health literacy (HL) and 1-year mortality in adults with cardiovascular disease (CVD).

PATIENTS AND METHODS

A total of 3000 adults treated at Vanderbilt University Hospital from October 11, 2011, through December 18, 2015, for acute coronary syndrome or acute decompensated heart failure (ADHF) participated in the Vanderbilt Inpatient Cohort Study. Participants completed a bedside-administered survey and consented to health record review and longitudinal follow-up. Multivariable mediation models examined the direct and indirect effects of HL (a latent variable with 4 indicators) with 1-year mortality after discharge (dichotomous). Hypothesized mediators included social support, health competence, health behavior, comorbidity index, type of CVD diagnosis, and previous-year hospitalizations.

RESULTS

Of the 2977 patients discharged from the hospital (60% male; mean age, 61 years; 83% non-Hispanic white, 37% admitted for ADHF), 17% to 23% had inadequate HL depending on the measure, and 10% (n=304) died within 1 year. The total effect of lower HL on 1-year mortality (adjusted odds ratio [AOR]=1.31; 95% CI, 1.01-1.69) was decomposed into an indirect effect (AOR=1.50; 95% CI, 1.35-1.67) via the mediators and a nonsignificant direct effect (AOR=0.87; 95% CI, 0.66-1.14). Each SD decrease in HL was associated with an absolute 3.2 percentage point increase in the probability of 1-year mortality via mediators admitted for ADHF, comorbidities, health behavior, health competence, and previous-year hospitalizations (listed by contribution to indirect effect).

CONCLUSION

Patient-level factors link low HL and mortality. Health competence and health behavior are modifiable mediators that could be targeted by interventions post hospitalization for CVD.