Candace D. McNaughton|Kenneth A. Wallston|Russell L. Rothman|David Marcovitz|Alan B. Storrow
Short, Subjective Measures of Numeracy and General Health Literacy in an Adult Emergency Department
Vanderbilt University Medical Center|Vanderbilt University|Vanderbilt University Medical Center|Vanderbilt University|Vanderbilt University Medical Center|Vanderbilt University|Vanderbilt University Medical Center|Vanderbilt University|Vanderbilt University Medical Center|Vanderbilt University
objective evaluate reliability validity brief subjective measures numeracy general health literacy adult emergency department ed settinga convenience sample adult ed patients completed subjective measures general health literacy short literacy survey sls numeracy subjective numeracy scale sns patients also completed two objective tests literacy short test functional health literacy adults stofhla rapid estimate adult literacy medicine realm objective test numeracy wide range achievement test4 wrat4 internal reliability subjective measures assessed using cronbachs alpha construct validity subjective measures assessed correlating stofhla realm wrat4 using spearmans rank correlation coefficients receiver operating characteristics roc curves hierarchical multiple linear regression adjustment patient age sex race educationthe median age 207 patients surveyed 46 years interquartile range iqr 32 59 years 27 african american sixtyone percent patients reported highest level education high school measured stofhla realm patients adequate literacy levels 89 80 respectively 44 patients average numeracy skills wrat4 median sls score 14 iqr 12 15 scale 3 15 median sns score 36 iqr 30 42 scale 6 48 sls sns good internal reliability cronbachs alphas 074 082 respectively sls spearmans rank order correlation coefficient 033 95 confidence interval ci 020 045 stofhla standardized beta coefficient 036 p 005 adjustment patient demographics sls correlation coefficient 026 95 ci 013 038 realm standardized beta coefficient 038 p 005 adjustment patient demographics area roc curve auc sls 074 95 ci 068 080 compared stofhla 072 95 ci 065 078 compared realm sns predicted numeracy well correlation coefficient 057 95 ci 047 065 wrat4 standardized beta coefficient 030 p 005 adjustment patient demographics auc 077 95 ci 070 082the sns sls reliable valid tests used rapidly estimate general health literacy numeracy skill levels adult ed patients continuing work needed establish ability predict clinical outcomes