Baseline characteristics of patients starting long-term oxygen therapy for chronic obstrucitve pulmonary disease, 1992–2008.
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Data presented as mean ± SD unless otherwise specified. Definition of abbreviations: FEV1 = forced expiratory volume in one second; FVC = forced vital capacity; PaCO2 air = arterial blood gas tension of carbon dioxide while breathing ambient air; PaCO2 oxygen = arterial blood gas tension of carbon dioxide while breathing oxygen; PaO2 air = arterial blood gas tension of oxygen while breathing ambient air; PaO2 oxygen = arterial blood gas tension of oxygen while breathing oxygen. *Hospitalizations and in-hospital days within 5 years prior to starting LTOT, presented as median (first quartile – third quartile).
创建时间：
2012-04-26
