Self-administered versus interview-based questionnaires among patients with intermittent claudication: Do they give different results? A cross-sectional study.

CONTEXT AND OBJECTIVE Many clinical investigations use generic and/or specific questionnaires to obtain information about participants and patients. There is disagreement about whether the administration method can affect the results. The aim here was to determine whether, among patients with intermittent claudication (IC), there are differences in the… CONTINUE READING