Type 2 diabetes and hepatocellular carcinoma: A cohort study in high prevalence area of hepatitis virus infection.
This study aimed to elucidate the relationship of type 2 diabetes, other known risk factors, and primary hepatocellular carcinoma (HCC) in countries with a high prevalence of hepatitis infection. We followed a prospective cohort of 54,979 subjects who participated in the Keelung Community-Based Integrated Screening program between 1999 and 2002. A total of 5,732 subjects with type 2 diabetes cases were identified at enrollment on the basis of fasting blood glucose level, and a total of 138 confirmed HCC cases were identified either through two-stage liver cancer screening or linkage with the National Cancer Registry. The independent effect of type 2 diabetes on the incidence of HCC and the interaction between type 2 diabetes and hepatitis infection or lipids profile were assessed using the Cox proportional hazards regression model. After controlling for age, sex, hepatitis B virus (HBV), hepatitis C virus (HCV), smoking, and alcohol consumption, the association between type 2 diabetes and incidence of HCC (excluding 33 prevalent cases identified at enrollment) was modified by HCV status and cholesterol level. The associations were only statistically significant (adjusted hazard ratio [HR] = 2.08 [1.03-4.18]) for being HCV negative and for having hypercholesterolemia (adjusted HR = 2.81 [1.20-6.55]). These statistically significant findings remained even excluding cases of diabetes newly diagnosed at enrollment. In conclusion, in an area with a high prevalence of hepatitis virus infection, type 2 diabetes increases the risk of developing HCC in those who are HCV negative or have a high level of total cholesterol.
Lai
Mei-Shu
MS
Institute of Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan.
Hsieh
Meng-Shu
MS
Chiu
Yueh-Hsia
YH
Chen
Tony Hsiu-Hsi
TH
D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis / Q000453:epidemiology*; D015331:Cohort Studies; D015897:Comorbidity; D003924:Diabetes Mellitus, Type 2 / Q000175:diagnosis / Q000453:epidemiology*; D019353:Endemic Diseases; D005260:Female; D019698:Hepatitis C, Chronic / Q000175:diagnosis / Q000453:epidemiology*; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D015995:Prevalence; D011336:Probability; D016016:Proportional Hazards Models; D011446:Prospective Studies; D012720:Severity of Illness Index; D017678:Sex Distribution; D015996:Survival Rate; D013624:Taiwan / Q000453:epidemiology