Two steps to use HAPPY-12K:

• Input the corresponding values for demographic and perioperative data;
• Wait a few seconds, then see the predictions.

Data sources:

• The southern region of Jiangsu Province, China: The First Affiliated Hospital of Nanjing Medical University, Nanjing First Hospital, Sir Run Run Shaw Hospital Nanjing Medical University, and Changzhou No.2 People's Hospital
• The northern region of Jiangsu Province, China: Subei People's Hospital and Jiangsu Taizhou People's Hospital
• The Xinjiang Province, China: Xinjiang Kezhou People's Hospital

If you use HAPPY-12K in your work, please cite:

•  Nana Li#, Xiaoshuang Xu#, Maojie Xue#, Jiacheng Zhou, Xiang Wang, Leyi Chen, Yuqing Yang, Jiajin Chen, Tianlin Zhou, Jigang Zhang, Yanna Si, Yanxiang Miao, Dong Shao, Xin Liu, Liang Sun, Chaolin Guo, David C. Christiani, Feng Chen*, Xiaofei Cao*, Ruyang Zhang*. HAPPY-12K:an independently validated across-ancestry hypoxemia risk prediction model in 12K patients during routine sedation for gastrointestinal endoscopy.

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