Related Experiment Video
Updated: Jul 12, 2026

Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children
Published on: August 22, 2012
Evaluation of the overall program effectiveness of HIV-related intervention programs in a community in Sichuan, China
Joseph T F Lau1, Renfan Wang, Hongyao Chen
1Centre for Epidemiology and Biostatistics, School of Public Health, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China. jlau@cuhk.edu.hk
Objectives:
The study evaluates the overall effectiveness of intervention programs among female sex workers in a Chinese community.
Study Design:
Behavioral surveillance data in 2003, 2004, and 2005 obtained from 2 communities (intervened and control) were compared.
Results:
The baseline data (2003) of the 2 counties were not significantly different. In 2004 and 2005, the intervened county had significantly higher prevalence of condom use with their clients and regular sex partners (last-time and consistent use in the last month; OR = 2.2-33.2 in 2004 and 3.8-8.3 in 2005), higher HIV-related knowledge level (OR = 7.9 in 2004 and 17.3 in 2005), and lower STD prevalence (OR = 0.22 in 2004 and 0.11 in 2005). Coverage rates of HIV antibody testing and HIV-related services increased in the intervened county but decreased in the control county.
Conclusions:
Intervention programs may result in substantial behavioral changes in a community within a few years.