Chest
Original ResearchSpirometry Use in Clinical Practice Following Diagnosis of COPD
Section snippets
Materials and Methods
This project was approved by the institutional review board of the Hines Veterans Affairs Hospital. Using a retrospective cohort design, VHA administrative data were used to identify patients with a diagnosis of COPD. Patients with at least two visits with diagnoses of COPD (International Classification of Diseases, ninth revision [ICD-9] codes 491.x, 492.x, and 496) between October 1, 1998, and September 30, 1999, were eligible to be included in the analysis. To be included, patients must have
Results
A total of 197,878 patients with newly diagnosed COPD were included in the analysis. Of these patients, 98% were male, and 66,744 (33.7%) had undergone at least one spirometry session during the 12-month period (Table 1). Those patients in the spirometry group were slightly younger (mean age, 66.6 years) than those who had not undergone spirometry (mean age, 68.0 years; p < 0.001).
In the adjusted analysis, as expected, a pulmonary clinic visit was the factor that had the highest association
Discussion
The objective of this study was to examine spirometry use in routine clinical practice in patients with a new diagnosis of COPD. Overall, the presence of spirometry in patients with a new diagnosis of COPD was low, with only 33.7% of patients having spirometry performed during the analysis period. The patients who were more likely to undergo spirometry were those who had been to a pulmonary clinic and those in younger age groups. The use of spirometry to assess lung function after an acute
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This project was funded by Veterans Affairs Health Services Research and Development Investigator Initiated Research grant 03–307.
The views expressed in this article are those of the authors and do not necessarily represent the views of the Department of Veterans Affairs or the US Government.