Five studies included blood pressure as an outcome. The random effects meta-analysis of two studies revealed no statistically significant benefits from nurse-led clinics on blood pressure reduction in the time period 6 to 8 months. When measuring blood pressure management by calculating patients who reached a certain target level, there was a significant improvement between intervention and control group having blood pressure less than 140/85 mmHg after one year. In one study there was a significant improvement of blood pressure management after one year attending a nurse-led clinic but those benefits were not sustained in the four-year follow-up. Small improvements of blood pressure in the long-term are likely which favours the treatment of a nurse-led clinic. No effect is shown in the long-term of more than one year, though there were only two studies included.