Evidence base for an intervention to maximise uptake of glaucoma testing: a theory-based cross-sectional survey.

Objective: To identify factors associated with intention to attend a hypothetical eye health test and provide an evidence base for developing an intervention to maximise attendance, for use in studies evaluating glaucoma screening programmes. Design: Theory-based cross-sectional survey, based on an extended Theory of Planned Behaviour (TPB) and the Common Sense Self-Regulation Model, conducted in June 2010. Participants: General population including oversampling from low socioeconomic areas. Setting: Aberdeenshire and the London Boroughs of Lewisham and Southwark, UK. Results: From 867 questionnaires posted, 327 completed questionnaires were returned (38%). In hierarchical regression analysis, the three theoretical predictors in the TPB (Attitude, Subjective norm and Perceived Behavioural Control) accounted for twothirds of the variance in intention scores (adjusted