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Fig. 2 | Respiratory Research

Fig. 2

From: Impact of preexisting interstitial lung disease on mortality in COVID-19 patients from the early pandemic to the delta variant epidemic: a nationwide population-based study

Fig. 2

Respiratory support care and mortality in COVID-19 patients with preexisting interstitial lung disease by wave. Among the COVID-19 patients with preexisting interstitial lung disease in each wave, the proportion of patients who required oxygen therapy were 48.2%, 44.7%, and 29.4% in the wild-type-, alpha-, and delta-predominant wave, respectively. The proportion of patients who required high-flow nasal cannula was 5.7%, 8.0%, and 4.5% in the wild-type-, alpha-, and delta-predominant wave, respectively. The proportion of patients who required mechanical ventilation was 8.6%, 6.2%, and 1.8% in the wild-type-, alpha-, and delta-predominant wave, respectively. The proportion of death in COVID-19 patients with interstitial lung disease was 16.0%, 14.6%, and 7.5%, in wild-type-, alpha-predominant wave, delta-predominant wave, respectively. Wild-type-predominant wave, January 01, 2020–April 18, 2021; alpha-predominant wave, April 19, 2021–July 18, 2021; delta-predominant wave, July 19, 2021–August 31, 2021

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Respiratory Research

ISSN: 1465-993X

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