Aim: To review the characteristics of esophageal carcinoma in recent 30 years in the epidemiological investigation.
Methods: A total of 1 520 cases of esophageal carcinoma in the First Affiliated Hospital of Zhejiang University Medical College admitted from 1970 until now were reviewed. Their age, gender, position of carcinoma and histological type were analyzed.
Results: The morbidity of esophageal carcinoma was increasing during the observation period. Compared with the 1970s (9.5%), the ratio of adenocarcinoma significantly increased after the 1980s (19.1%). The difference was significant (P</=0.05).
Conclusion: The morbidity of esophageal adenocarcinoma was increasing and advanced clinical study should be strengthened.