Unsupervised home spirometry versus supervised clinic spirometry for respiratory disease: a systematic methodology review and meta-analysis.
Rohan AnandRebecca Helen McLeeseJohn BusbyJonathan StewartMike ClarkeWilliam D C ManJudy BradleyPublished in: European respiratory review : an official journal of the European Respiratory Society (2023)
Analysis under the conditions of the included studies indicated that unsupervised spirometry is not interchangeable with supervised spirometry for individual patients owing to variability and underestimation.