Possible risk factors for hypoxemia during endoscopic procedures: Univariant analysis (Continued).

CHF Chronic Heart Failure, COPD Chronic Obstructive Pulmonary Disease, EGD Esophagogastroduodenoscopy, GI gastrointestinal.n (%) are presented in the table.表格中呈现了慢性心力衰竭（Chronic Heart Failure，CHF）、慢性阻塞性肺疾病（Chronic Obstructive Pulmonary Disease，COPD）、食管胃十二指肠镜检查（Esophagogastroduodenoscopy，EGD）以及胃肠道（gastrointestinal，GI）的例数（n）与百分比（%）数据。