[Cost-utility analysis on universal childhood hepatitis A vaccination in regions with different anti-HAV prevalence rates of China].

Objective: To explore the inputs and outputs of areas with different anti-HAV prevalence rates on universal childhood vaccination, and to provide a scientific basis for the formulation of the immunization strategy.

Methods: Since hepatitis A vaccination was scheduled at 12 and 18 months of age for all the healthy children, a single cohort including 1 000 000 individuals was formed in 2009, using the Chinese inactivated vaccine. Decision analysis was used to build Markov-decision tree model.

[A survey on reproductive health related sexual behavior among middle school students in Luoyang city].

Objective: To explore the appropriate ways and contents of reproductive health education for middle school students and to understand reproductive health related sexual behavior and influencing factors among middle school students.

Methods: Reproductive health related sexual behavior was evaluated among junior and senior middle school students in Luoyang by cluster sampling. The statistical software of SAS 8.

A cost-effectiveness analysis of universal childhood hepatitis A vaccination in China.

The socioeconomic improvement has impacted hepatitis A virus (HAV) infection with a shift from high to intermediate endemicity in many parts of China. The first China-developed inactivated hepatitis A vaccine, with significantly low price, was licensed in 2002, prompting us to evaluate whether universal childhood vaccination is advisable now in China. We considered vaccination scheduled at ages 12 and 18 months for all healthy children, and assumed that a single cohort was enrolled in 2005.