[Compliance with hypertension therapy in Spain, according to the views of family doctors. Complex project].

objectivesTo evaluate physicians' knowledge of therapy compliance, their attitudes towards it and their training needs in this field.

designTransversal, descriptive study using a questionnaire.

settingPrimary care centres in Spain.

participantsThree thousand and thirty-four general practitioners. MAIN MEASUREMENTS: Definition of non-compliance, non-compliance in their own consultations and in the rest of Spain, methods of measurement, causes, association with therapy failure, efficacy and use of compliance-enhancing strategies, and need for training.

resultsMost participants (92%; 95% CI, 91.1-92.9) defined non-compliance as patients' failure to take 5%-20% of their pills. A total of 32.4% (95% CI, 30.9%-33.9%) of the physicians estimated that less than 10% of their patients were non-compliers, whereas 6.8% (95% CI, 6.0-7.6) thought this was also the rate in the rest of Spain. The preferred methods of measurement were patient response (77.0%; 75.7-78.4) and their own clinical experience (76.0%; 74.6-77.4). About half (50.7%) believed that lack of compliance was associated with therapy failure in more than 50% of cases. The presence of adverse side-effects was considered a very important cause of poor compliance by 81.9%. The most common and effective strategies were: use of single-dose drugs (84.3%; 83.1-85.5) and nursing support (84.9%; 83.8-86.0). Moreover, 65.2% (63.7-66.7) of the surveyed physicians had not received any education about compliance as medical students and 42% (40.4-43.6) said further training in compliance was needed.

conclusionsA high percentage of physicians define compliance incorrectly and believe that other doctors have more non-complying patients than they do. They tend to favour non-validated measuring methods and they lack training.