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Fig. 1 | BMC Pulmonary Medicine

Fig. 1

From: Efficacy of early pulmonary rehabilitation in severe and critically ill COVID-19 patients: a retrospective cohort study

Fig. 1

Flow chart of patient screening. Information regarding 797 COVID-19 patients was extracted from electronic and written records. Two researchers reviewed these records and excluded mild to moderate patients, duplicate records, and patients without accessible clinical data. Finally, data from 272 patients were included in this study (39 in the PR group, and 233 in the control group). IPTW and PSM were conducted to fully evaluate the effects

PR = pulmonary rehabilitation

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BMC Pulmonary Medicine

ISSN: 1471-2466

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