[OP.6C.03] DO PATIENTS ACTUALLY DO WHAT WE ASK? PATIENT PERFORMANCE AND PERSISTENCE IN THE TASMIN-SR BLOOD PRESSURE SELF-MANAGEMENT TRIAL.
Schwartz C., Seyed-Safi A., Sayeed Haque M., Bray E., Greenfield S., Hobbs R., Little P., Mant J., Williams B., McManus R.
OBJECTIVE: This study assessed how accurately patients reported their blood pressure (BP) and titrated their antihypertensive medications according to the protocol set out by the TASMIN-SR trial. DESIGN AND METHOD: The TASMIN-SR self-management intervention involved patients with above target clinic BP and stroke, diabetes, CHD or CKD, self-monitoring their BP for the first week of every month followed by implementation of an individualised self-titration schedule. 276 patients were randomised to the intervention and 226 (80%) successfully completed 2 or 3 training sessions. Patients were followed up for 12 months and during this time submitted written records of home BP readings, and details of any medication changes made, on a monthly basis. BP readings were downloaded from each patient's monitor at 6 and 12 month follow-up clinics and these were compared to those submitted along with an assessment of protocol fidelity. RESULTS: Of 226 patients who were successfully trained, 174 (77%) completed self-management. 10,038/11,684 (85.9% (95% CI, 85.3 - 86.5) of all readings submitted were reported accurately, when compared to the readings downloaded from the monitor, and 164 patients (95%) reported their readings with at least 80% accuracy. There was an average error rate of 6.7% per patient and the only characteristic affecting this was age, under 65 years compared to those above (4.5%, (95% CI 3.2 - 5.6) vs 7.7%, (95% CI 6.4 - 9.0), p