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Q Do simple (video plus leaflet) or complex (decision analysis) decision aids assist patients with newly diagnosed hypertension in deciding whether to start drug treatment?
Clinical impact ratings GP/FP/Primary care ★★★★☆☆☆
METHODS
Design:
randomised controlled 2 × 2 factorial trial.
Allocation:
concealed.*
Blinding:
unblinded.*
Follow up period:
2 weeks and 3 months.
Setting:
21 general practices in Avon, UK.
Patients:
217 patients (mean age 58 y, 52% men) who had sustained high blood pressure requiring discussion of drug treatment with a general practitioner and were not taking antihypertensive medication. Exclusion criteria included severe hypertension and secondary hypertension.
Interventions:
decision analysis (computerised utility assessment interview with individualised risk assessment and decision analysis) (n = 52); video or leaflet (n = 55); decision analysis and video or leaflet (n = 51); or usual care (n = 59). Interventions lasted 1 hour.
Outcomes:
degree of uncertainty about treatment course of action (total score on the 16 item Decisional Conflict Scale [DCS]); state anxiety; knowledge of …
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