Oral diseases · 2019
Risk for a second primary hypopharyngeal and esophageal cancer after an initial primary oral cancer.
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Su William Wang-Yu, Chuang Shu-Lin, Yen Amy Ming-Fang, Chen Sam Li-Sheng, Fann Jean Ching-Yuan, Chiu Sherry Yueh-Hsia, Chiu Han-Mo, Su Chiu-Wen, Hsu Chen-Yang, Chen Mu-Kuan, Chen Hsiu-Hsi, Wang Cheng-Ping, Lee Yi-Chia
Аннотация
OBJECTIVE: To investigate the risk for second primary cancer in the hypopharynx and esophagus (SPC-HE) among individuals with an initial oral/oropharyngeal cancer.
MATERIALS AND METHODS: Mass screening data from Taiwan (2004-2009) included individuals who were ≥18 years old and smoked cigarettes and/or chewed betel quid. Occurrence of SPC-HE was monitored until December 31, 2014. Results were expressed as adjusted relative risk (aRR) and 95% confidence interval (CI).
RESULTS: One hundred and fifty-eight out of 4,494 subjects with oral cancer developed SPC-HE (incidence rate: 6.47 per 1,000 person-years). Relative to patients with primary cancers in the lip, the risk of an SPC-HE was higher in patients with primary cancers in oropharynx (aRR: 19.98, 95% CI: 4.72-84.55), floor of mouth (aRR: 12.13, 95% CI: 2.67-55.15), and hard palate (aRR: 7.31, 95% CI: 1.65-32.37), but not in patients with cancers in tongue (aRR: 3.67, 95% CI: 0.89-15.17) or gum (aRR: 3.99, 95% CI: 0.92-17.35). Regression analyses also showed the risk of an SPC-HE was greater in alcohol drinkers than those who did not (aRR: 1.65, 95% CI: 1.10-2.48).
CONCLUSIONS: Compared with the initial cancer in the lip, patients with a cancer in the oropharynx, floor of mouth, and hard palate had a higher risk for the SPC-HE.
MATERIALS AND METHODS: Mass screening data from Taiwan (2004-2009) included individuals who were ≥18 years old and smoked cigarettes and/or chewed betel quid. Occurrence of SPC-HE was monitored until December 31, 2014. Results were expressed as adjusted relative risk (aRR) and 95% confidence interval (CI).
RESULTS: One hundred and fifty-eight out of 4,494 subjects with oral cancer developed SPC-HE (incidence rate: 6.47 per 1,000 person-years). Relative to patients with primary cancers in the lip, the risk of an SPC-HE was higher in patients with primary cancers in oropharynx (aRR: 19.98, 95% CI: 4.72-84.55), floor of mouth (aRR: 12.13, 95% CI: 2.67-55.15), and hard palate (aRR: 7.31, 95% CI: 1.65-32.37), but not in patients with cancers in tongue (aRR: 3.67, 95% CI: 0.89-15.17) or gum (aRR: 3.99, 95% CI: 0.92-17.35). Regression analyses also showed the risk of an SPC-HE was greater in alcohol drinkers than those who did not (aRR: 1.65, 95% CI: 1.10-2.48).
CONCLUSIONS: Compared with the initial cancer in the lip, patients with a cancer in the oropharynx, floor of mouth, and hard palate had a higher risk for the SPC-HE.