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Fig. 3 | BMC Anesthesiology

Fig. 3

From: Supraglottic jet oxygenation and ventilation decreased hypoxemia during gastrointestinal endoscopy under deep sedation at high altitudes: a randomized clinical trial

Fig. 3

The primary outcome was adjusted for the baseline characteristics. Stratification variable: Upper endoscopy or colonoscopy; demographic characteristics: age, sex, ethnic group (Tibetan/Zang or not), body mass index, clinical characteristics, history of obstructive sleep apnea-hypopnea syndrome, erythrocytosis, and original hypoxia before oxygenation. RR, risk ratio; CI, confidence interval; SJOV, supraglottic jet oxygenation and ventilation

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