Objectives: We aimed to assess the association between metabolic syndrome (MS) and hepatitis B/C virus infection using a large population-based study. Design and methods: A population-based cross-sectional study design was adopted with a total of 53 528 subjects being enrolled from the integrated multiple diseases screening program in Keelung, Taiwan. Evidence of past hepatitis B/C infection, acquired during childhood or as a young adult, was identified during the two-stage liver cancer screening part of the process. Information on biochemical markers and anthropometric measures related to MS, such as fasting blood sugar, triglyceride and high-density lipoprotein (HDL), abdominal circumference and blood pressure (BP), were collected routinely while screening for hypertension, type 2 diabetes, and hyperlipidemia. Logistic regression was used to estimate odds ratios and related 95% confidence intervals for the associations between MS and hepatitis B/C infection. Results: High blood pressure (SBPX135 mmHg or DBPX85 mmHg) (adjusted odd ratio: 0.89 (0.83-0.94)) and high triglyceride (X150 mg/dl) (adjusted odds ratio: 0.65 (0.60-0.69)) were, after adjusting for gender and age, inversely associated with being HBsAg positive (Po0.05). The likelihood of developing MS was lower in the HBsAg positive than the HBsAg negative (adjusted odds ratio: 0.84 (0.76-0.93)). A positive association between being anti-HCV positive and having low serum HDL (male o40 mg/dl, female o50 mg/dl) was also noted (adjusted odds ratio: 1.61 (1.37-1.88) after controlling for gender and age). High triglyceride was inversely associated with being anti-HCV positive (adjusted odds ratio: 0.63 (0.55-0.71). Conclusions: There is an inverse association between MS and hepatitis B virus infection whereas the association was heterogeneous for HCV infection with a positive association with abnormal serum HDL but an inverse association with hypertriglyceridemia.
This study evaluated the associations between economic, social, psychological factors, and health-related quality of life of hemodialysis patients. Cross-sectional study design was used. End-stage renal disease patients who had received maintenance hemodialysis for more than 2 months at 14 centers in northern Taiwan were invited to participate. Demographic, economic, and psychosocial data of patients were collected. Depression was assessed by the Beck Depression Inventory. Health-related quality of life was measured by the Medical Outcomes Study Short-Form 36. Multivariable linear regression analyses were performed. Eight hundred sixty-one patients (373 males, mean age 59.4 +/- 13.2 years) completed the study. Higher monthly income was positively associated with role emotional and mental health (P < 0.05), and so was increased frequency of social activities with social functioning (P < 0.05). The more worries, the stronger the inverse associations with social functioning (P < 0.05) and mental health (P < 0.01). Higher depression scores were associated with lower scores of all Short-Form 36 dimensions (P < 0.01). Higher monthly income and increased social activities are associated with better health-related quality of life, whereas more worries and higher depression scores are associated with worse health-related quality of life of hemodialysis patients.
The long-term protection of hepatitis B (HB) vaccination has been debated for years. The purpose here was to evaluate the kinetic changes of antibody to HB surface antigen (antiHBs) and define immune memory of the HB vaccine among college students who had previously received full neonatal immunization against HB. In all, 127 college students aged 18-23 years born after July 1984 who had completed HB vaccination and were seronegative for all three HB viral markers, including HB surface antigen (HBsAg), antibody to HB core protein (anti-HBc), and anti-HBs, were recruited. They received three doses of HB vaccine at enrollment, 1 month and 6 months after enrollment. Their anti-HBs titers were assayed at enrollment, 7-10 days, 1 month, 6 months, and 7 months following the first dose of HB vaccine. The anti-HBs seroprotective rates for subjects 7-10 days, 1 month, 6 months, and 7 months postvaccination were 20.5%, 75.6%, 94.5%, and 99.2%, respectively. Those who were seroprotective at 7 to 10 days after one dose of HB vaccine booster developed significantly higher levels of anti-HBs at 1 and 6 months than those not developing seroprotective anti-HBs response at an earlier timepoint. Conclusion: At least one-quarter of HB vaccinees have lost their immune memory to the HB vaccine when entering college. Immune memory to HB vaccine was identified by early seroconversion, which was present in only 20% of vaccinees in the present study. To ensure higher than 90% anti-HBs seroconversion rates, at least 2 doses of HB booster vaccines are recommended for at-risk youths who received complete HB vaccinations in neonatal or infant periods but are seronegative for HBsAg, antiHBs, and anti-HBc in adolescence. (HEPATOLOGY 2010;51:1547-1554 See Editorial on Page 1485. U niversal hepatitis B (HB) immunization has been implemented for more than 20 years in Taiwan and led to remarkable reductions in acute and chronic liver diseases. 1,2The national immunization program of Taiwan was launched in 1984: all neonates or infants born before Nov 1992 received plasma-derived HB vaccines at birth. They all received standard doses of HB vaccines at birth according to the same standard protocol. The coverage rate of HB vaccines during the past 2 decades in Taiwan has been >90% and data show that the national vaccine coverage rates were more than 95% in 2001 and 2002. 3,4 It has shown an efficacy of 78%-87% in decreasing the seroprevalence of hepatitis B surface antigen (HBsAg)Abbreviations: anti-HBc, antibody to hepatitis B core protein; anti-HBs, antibody to hepatitis B surface antigen; BMI, body mass index; GMT, geometric mean titers; HB, hepatitis B; HBsAg, hepatitis B surface antigen.From the
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