Review: nurse practitioner primary care improves patient satisfaction and quality of care with no difference in health outcomes.

Data sources Published and unpublished studies were identified by searching Medline (1966–2001), EMBASE/Excerpta Medica (1980–2001), CINAHL (1982–2001), Science Citation Index, Database of Abstracts of Reviews of Effectiveness, National Research Register, Cochrane Controlled Trials Register, and the Cochrane Effective Practice and Organisation of Care Group specialist register; contacting authors of included studies, NP organisations, and educational training centres; and handsearching recent relevant journals, bibliographies, and reference lists.