Hypertensive patients in a general practice setting: comparative analysis between controlled and uncontrolled hypertension.

Objective: To study the differences between controlled and uncontrolled hypertensive patients.

Methods: This was a cross-sectional observational study of the hypertensive population on the lists of three general practitioners in the district of Coimbra in central Portugal in 2013, with a margin of error of 6% and 95% confidence interval in each sample, organized in ascending order of health care user numbers. Data were gathered electronically by the investigators after approval by the Regional Health Authority's ethics committee.