The outcome evaluated was blood pressure control. Patients presenting at least one record of blood pressure less than 140/90 mmHg in their medical files from the last consultation, after a minimum of 12 months of follow-up, were deemed to present controlled pressure, in accordance with the advice contained in the Fourth Brazilian Hypertension Consensus.8
The blood pressure measurement equipment used in the units was of aneroid type (Certified or Missouri models), and the units affirmed that these devices were calibrated every six months. NAWA stethoscopes were used.
The statistical calculations were performed using the Vassar Stats Statistical Tables Calculator.9