Validity of the Age-Adjusted Charlson Comorbidity Index on Clinical Outcomes for Patients with Nasopharyngeal Cancer Post Radiation Treatment: A 5-Year Nationwide Cohort Study

• Ching-Chieh Yang,

  Affiliations Department of Radiation Oncology, Chi-Mei Medical Center, Tainan, Taiwan, Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan

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• Po-Chun Chen,

  Affiliation Department of Radiation Oncology, Pingtung Christian Hospital, Pingtung, Taiwan

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• Chia-Wen Hsu,

  Affiliation Department of Medical Research, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan

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• Shih-Lun Chang,

  Affiliation Department of Otolaryngology, Chi-Mei Medical Center, Tainan, Taiwan

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• Ching-Chih Lee

  * E-mail: hematcd2@hotamil.com

  Affiliations Department of Otolaryngology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan, Center for Clinical Epidemiology and Biostatistics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan, Cancer Center, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan, School of Medicine, Tzu Chi University, Hualian, Taiwan

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