Validation of Turkish health literacy measures
This study aimed to validate a Turkish version of the Short Test of Functional Health Literacy (S-TOFHLA) (Baker et al., Development of a brief test to measure functional health literacy. Patient Educ Counsel 1999;38:33-42) and a Turkish version of the Chew self-report scale (Chew et al., Brief questions to identify patients with inadequate health literacy. Family Med, 2004;36:588-94) for measuring functional health literacy. The original English version of the S-TOFHLA and the Chew items were translated by applying standardized translation methods and cultural adaptations, and both were administered to a sample of diabetes patients (N = 302) in two diabetes clinics in one of the major cities in Turkey. Self-administered paper-pencil questionnaires were distributed to eligible outpatients who had a clinic appointment. In addition to the S-TOFHLA measurement and the Chew screening questions, gender, age, educational attainment, income, marital status and diabetes knowledge were obtained. The Turkish version of S-TOFHLA showed high internal consistency. Both S-TOFHLA and the Chew screening scale correlated significantly with known predictors of health literacy: age, education and income. The Chew scale was also related weakly but significantly with general diabetes knowledge. It is expected that the Turkish versions of S-TOFHLA and the Chew scale will be used in Turkey as well as in other countries with large Turkish communities.