The study intervention is a non-invasive, education- and counseling-based behavioral nursing intervention. Participants in the control group will continue to receive routine hypertension care and will be given a standard hypertension information brochure. Participants in the individual motivational interviewing group will receive nurse-led individual motivational interviewing sessions. Participants in the family-involved motivational interviewing group will receive the same intervention, with the participation of a family member who supports the patient's hypertension management.
The intervention content includes hypertension awareness, individual risk factors, readiness for change, hypertension knowledge, misconceptions and complications, medication adherence, treatment barriers, salt reduction, nutrition behaviors, home blood pressure monitoring, physical activity, weight control, stress management, self-efficacy, problem solving, motivation maintenance, and individualized goal evaluation. Intervention fidelity will be monitored using a session checklist.