title: [Epidemiologic characteristics of liver cancer in the youth in Qidong high-risk area].
abstract: This paper reports the epidemiologic characteristics of liver cancer in the youth aged 0-34 years during the period of 1972-1989 in Qidong high-risk area. The mortality for liver cancer in the youth was 11.59 per 100,000 (age-adjusted rate, 9.55 per 100,000), which accounted for 15.45% of that in the total population, and 61.55% of all cancers in the youth. Significant sex-difference was also seen in the youth: 18.60 per 100,000 (age-adjusted rate, 15.79 per 100,000) in males and 4.50 per 100,000 (age-adjusted rate, 3.60 per 100,000) in females. The male-to-female ratio was 4.13: 1, showing that liver cancer occurred more frequently in early-adult life in males than females. There was a rising trend in crude mortality of liver cancer in the youth over this period, but after adjusting for age, the rate showed a slight decrease. It might be expected that, owing to expanded immunization with hepatitis B vaccine in Qidong newborns since 1983, the further decrease of liver cancer mortality in Qidong should be seen in the youth.
authors.affiliation: Department of Epidemiology, Qidong Liver Cancer Institute.
authors.forename: J
authors.initials: J
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D006509:Hepatitis B / Q000517:prevention & control; D017325:Hepatitis B Vaccines; D006801:Humans; D008113:Liver Neoplasms / Q000453:epidemiology / Q000401:mortality*; D008297:Male; D012737:Sex Factors
chemical_list: D017325:Hepatitis B Vaccines