Abstract
Aim:
To determine the intra- and inter-observer reliability of respiratory specialists' diagnostic assessments of spirometry and written medical history data obtained from primary care.
Method:
Five respiratory specialists assessed spirometry data and the history of 156 patients randomly selected from referrals to an asthma/COPD-service. The inter-observer reliability was evaluated. After six months, all specialists repeated the assessments and the intra-observer reliability was evaluated.
Results:
The diagnostic assessments for all patients had reasonable intra- and inter-observer reliability, resulting in a Cohen's kappa (κ) of 0.67 and 0.66 respectively. The intra-observer reliability for assessing the need for additional diagnostic examinations had an average κ 0.56 for new patients and an average κ 0.39 for follow-up examinations. The assessments of clinical stability in follow-up patients — on which therapeutic advice was based — were inconsistent.
Conclusion:
GPs who are reluctant to perform or interpret spirometry themselves may be supported diagnostically by respiratory specialists in an asthma/COPD-service. The reliability of this advice varies. More appropriate criteria for assessing clinical stability in patients with asthma and COPD are necessary to improve the reliability of the therapeutic advice.
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Lucas, A., Smeenk, F., van den Borne, B. et al. Diagnostic assessments of spirometry and medical history data by respiratory specialists supporting primary care: are they reliable?. Prim Care Respir J 18, 177–184 (2009). https://doi.org/10.3132/pcrj.2009.00002
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DOI: https://doi.org/10.3132/pcrj.2009.00002
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