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Doctors and professional health administrators have been the principal decision-makers and the patients have hardly had any direct influence on the planning and organization of primary health care in Norway. In 1987, in order to draw attention to patient opinions, the Institute of Community Medicine, University of Tromsø, conducted a questionnaire survey among patients attending general practices in North Norway. The question were selected to cover issues in the contemporary debate on the ideology, organization and standards of services of general practitioners. 36 teaching practices in the region were included in the survey. Altogether 3,739 questionnaires were returned, a response rate of over 60%. The respondents reported more than 16,000 consultations during the last year. This paper presents the methods used and the main findings concerning the representativeness of the results and the potential for generalization. Subsequent publications will present detailed results from the study within the framework of patient experiences, preferences and expectations.

Because of lower respiratory infection that was treated with antibiotics on the suspicion of pneumonia, 71 patients aged 15 years or more were referred to the study by general practitioners. Using a positive chest X-ray as a "gold standard", 15% had pneumonia. The diagnostic value of variables from history, physical examination and blood tests was evaluated by calculating the likelihood ratio (LR). A duration of illness less than 24 hours before consulting the general practitioner was the variable from the history with the highest LR, 13.5. The white blood cell count and particularly the C-reactive protein analysis had a high diagnostic value, CRP greater than 50 mg/l had an LR of 37. In this selected material pulmonary symptoms and lung findings were of minor value in differentiating patients with and without pneumonia, with no LR exceeding 2.3. This can be explained to some extent by selection bias.