Hansen WAH, Schlünssen V, Jørs E, Sekabojja D, Ssempebwa JC, Mubeezi R, Staudacher P, Fuhrimann S, Hansen MRH. Precision and accuracy of FEV1 measurements from the Vitalograph copd-6 mini-spirometer in a healthy Ugandan population.
PLoS One 2021;
16:e0253319. [PMID:
34181689 PMCID:
PMC8238209 DOI:
10.1371/journal.pone.0253319]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 06/03/2021] [Indexed: 12/17/2022] Open
Abstract
Objective
Evaluate the accuracy and precision of the copd-6 mini-spirometer for FEV1 in a rural Ugandan population.
Methods
In a cross-sectional study, 171 smallholder farmers performed spirometry with copd-6, and a diagnostic-quality spirometer.
Results and discussion
The copd-6 underestimated FEV1 at low flows and overestimated FEV1 at high flows. Across all participants, the device slightly overestimated FEV1 by 0.04 [0.02; 0.06] L. Calibration data showed similar patterns.
Conclusion
The copd-6 could be considered as an affordable tool for research on lung function impairment in resource-constrained settings. However, further validation in a study population with obstructive lung disease is needed.
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