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Abstract

OBJECTIVE: Compare the results from a new screening spirometer (EasyOne) with the results from a standard laboratory spirometer (Vmax) approved by the American Thoracic Society. SETTING: A health fair at a community hospital. METHODS: We measured forced expiratory volume in the first second (FEV₁) and forced expiratory volume in the first 6 seconds (FEV). With the screening spirometer, good quality testing was achieved in 359 of 394 subjects (91%), and 115 subjects were also tested with the standard laboratory spirometer. The best test values for FEV₁ and FEV, were taken for 3 tests that agreed within 3%. FEV, was extrapolated from forced vital capacity on the printouts from the standard laboratory spirometer. RESULTS: Correlations between the screening spirometer results and the standard laboratory spirometer were excellent for FEV₁ (r = 0.93), FEV (r = 0.96), and FEV1/FEV (r = 0.72) (p = 0.001 for all comparisons). The 95% limits of agreement (mean difference between the 2 spirometers ± 1.96 standard deviations) were: -0.18 and 0.69 for FEV1; -0.24 and 0.81 for FEV; and -0.12 and 0.13 for FEV1/FEV. CONCLUSION: The new screening spirometer is suitable for clinical use.

Keywords

screening spirometry spirometer EasyOne SensorMedics Vmax health fair

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Performance of a New Screening Spirometer at a Community Health Fair

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