Table 38Relationship between numeracy and self-efficacy (KQ 1b)

Author, Year, Study Design, Sample Size, Quality% Low NumeracyOutcomeVariables Used in Multivariate AnalysisResults by Numeracy LevelDifference
Cavanaugh et al., 2008174


N = 398

WRAT-3, numeracy
< 9th grade: 69%
≥ 9th grade: 31%

Diabetes Numeracy Test (DNT: median % correct)

Overall: 65%
Quartile 1: 27%
Quartile 2: 25%
Quartile 3: 26%
Quartile 4: 23%
Median self-efficacy for diabetes self-management

Measured by Perceived Diabetes Self-Management Scale (range 8-40)
NoneMedian self-efficacy

DNT Quartile 1: 28
DNT Quartile 2: 28
DNT Quartile 3: 31
DNT Quartile 4: 32
Median Self-efficacy DNT Quartile 1 vs. 4: -4a, P for trend:
(P = 0.003)

Calculated by research team

DNT=Diabetes Numeracy Test; vs.=versus; WRAT-3=Wide Range Achievement Test-3rd edition.

From: Results: Relationship of Health Literacy to Outcomes and Disparities

Cover of Health Literacy Interventions and Outcomes: An Updated Systematic Review
Health Literacy Interventions and Outcomes: An Updated Systematic Review.
Evidence Reports/Technology Assessments, No. 199.
Berkman ND, Sheridan SL, Donahue KE, et al.

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