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. 2021 Oct 5;18:14799731211033925. doi: 10.1177/14799731211033925

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© The Author(s) 2021

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Survival curves for patient related outcome measures. Kaplan–Meier curves for survival (1-year mortality) for (a) SGRQ: St George’s Respiratory Questionnaire, (b) EQ5D: 5-Level Euroqol 5-dimension, (c) mMRC: modified Medical Research Council dyspnoea scale, (d) HADS: Hospital Anxiety and Depression Score, (e) K-BILD: King’s Brief Interstitial Lung Disease Questionnaire and (f) UCSD-SOBQ: University of California, San Diego shortness of breath questionnaire. Individuals were divided into three equal groups according to the baseline total score of each questionnaire: better, middle and worse health status. A comparison was made between tertile groups. Solid lines represent the better health status, dashed lines represent middle health status and dotted lines represent worse health status.