Disagreement between patients' and general practitioners' estimates of patient health literacy increases from the top to the bottom of the social ladder: a cross-sectional study in the Paris area.

Background: Associated with both socioeconomic position and health outcomes, health literacy (HL) may be a mechanism contributing to social disparities. However, it is often difficult for general practitioners (GPs) to assess their patients' HL level.

Objective: To analyse disagreements about patient HL between GPs and their patients according to the patient's socioeconomic position.

Validity and measurement invariance across sex, age, and education level of the French short versions of the European Health Literacy Survey Questionnaire.

Background: Short versions of the European Health Literacy Survey (HLS-EU) questionnaire are increasingly used to measure and compare health literacy (HL) in populations worldwide. As no validated versions of these questionnaires have thus far appeared in French, this study aimed to study the psychometric properties of the French translation of the 16- and 6-item short versions (HLS-EU-Q16 and HLS-EU-Q6), including their measurement invariance across sex, age, and education level.

Methods: A consensual French version of the HLS-EU-Q16 and HLS-EU-Q6 was developed by following the current recommendations for transcultural questionnaire adaptation.