Table 1.

Patient inclusion and exclusion criteria.

Inclusion Criteria Age >21 years Patient was fluent in English Patient had at least two high BP readings during clinic visits in the previous 12 months (140+ mm Hg systolic BP or 90+ mm Hg diastolic BP; if patient was diabetic, 130+ mm Hg systolic BP or 80+ mm Hg diastolic) Patients primary care provider was participating in the study

Exclusion Criteria Patient received care from another physician for hypertension (e.g. cardiologist) Patient was hospitalized for a psychiatric disorder in the past 3 years Patient was participating in another clinical research study Patient was pregnant or planned to become pregnant in the next 12 months Patient planned on moving out of the area in the next 12 months Patient did not have personal access to the internet at home or at work Patient did not have a personal email account