A comparison of blood pressure control in hypertensive patients treated in hospital clinics and in general practice. The DHSS hypertension care computing project.

Two thousand and twenty hypertensive patients of 45 years and over were treated and followed up for either 6 months, 12 months, 18 months or 2 years. Seventeen hundred and forty of these patients were seen in hospital outpatient clinics, 280 in general practice.The patients followed in general practice had an average blood pressure of 182/111 mmHg prior to treatment. The blood pressure after follow-up for 18-24 months averaged 156/97 mmHg. The corresponding results for the patients followed in hospital clinics were 195/115 mmHg untreated and 150/92 mmHg after follow-up.The untreated blood pressures were higher in the hospital patients (p < 0.001 for systolic, p < 0.05 for diastolic pressure) and the treated diastolic pressures at 18-24 months were lower in the hospital than the general practice group (p < 0.001). The hospital patients did not receive a greater variety of drugs but were prescribed them in higher doses. Blood pressure control was considered to be inadequate in many patients in both groups. At 18-24 months, 26 per cent of the general practice group had diastolic pressures of 105 mmHg or more, as had 13 per cent of the patients followed in the hospital clinics.