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Fig. 3 | Respiratory Research

Fig. 3

From: A review of the challenges, learnings and future directions of home handheld spirometry in interstitial lung disease

Fig. 3

Longitudinal correlation of FVC decline over time between home handheld spirometry and site spirometry in a STARLINER, all subjects, b STARLINER, IPF, c STARLINER, non-IPF ILD, d STARMAP, e the pirfenidone in uILD study (placebo group) and f the pirfenidone in uILD study (pirfenidone group). For home handheld spirometry, baseline was calculated as the average of assessments collected during the first 7 days. FVC forced vital capacity, ILD interstitial lung disease, IPF idiopathic pulmonary fibrosis, uILD unclassifiable interstitial lung disease

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