Blood pressure 2 years after a chronic disease management intervention study

To follow blood pressure change over time in participants who had participated in a 1- year chronic disease management program focused on blood pressure reduction. The expectation was that blood pressure would return back to the baseline once the study was completed.

Prospective, single-arm observational study.

Study participants were Status Indians living on-reserve with type 2 diabetes and persistent hypertension who had participated in the DREAM3 study. Blood pressure was measured with the BpTRU automated device every 6 months for 2 years. The primary endpoint was the change in systolic blood pressure over the follow-up period.

Sixty of the original 96 participants agreed to participate in the follow-up. Mean blood pressure at the beginning of the follow-up was 130/76 (SD 18/12) mmHg. Mean blood pressure at the end of the follow-up period was 132/76 (17/9 SD) mmHg. Target blood pressure (<130/80 mmHg) was present in 53%. The 99% confidence limit around change of blood pressure over the 24 months of follow-up was +/-4.7 mmHg.

Contrary to expectations, the participants maintained their blood pressure control and did not revert to baseline levels. Community awareness and engagement resulting from the chronic disease management program led to a sustainable improvement in the health parameters of the participants and the community that lasted beyond the duration of the 1-year DREAM3 project.