Evaluation of the effectiveness of transmission risk assessment and classified intervention strategies before and after implementation among HIV/AIDS patients
Objective To evaluate the effectiveness of the implementation of transmission risk assessment and classified intervention among HIV/AIDS patients in Taizhou.Methods Risk assessments were carried out for HIV/AIDS patients with current addresses in Taizhou,followed by a one-year follow-up intervention.During the follow-up period,different intervention strategies were implemented based on different levels of transmission risk.The transmission risk of AIDS cases before and after the classified intervention was analyzed and the intervention effect was evaluated.Results A total of 4 329 patients with HIV/AIDS were.included in the study.After one year of classified interventions,172 patients(3.97%)were excluded.The proportion of patients at high or very high transmission risk decreased from 17.37%(722/4 157)to 9.62%(400/4 157),and the difference before and after classified intervention was statistically significant(x2=106.827,P<0.001).Significant reductions in the proportion of patients at high or very high transmission risk were observed across different sexes,age groups(except those under 20 years old),occupations,education levels,marital status,durations of disease at baseline,transmission routes(except drug abuse and other transmission routes),and detection routes(P<0.05).Implementation of risk assessment and classified management strategies led to an increase in the proportion of patients at high or very high transmission risk receiving combination antiretroviral therapy(cART)from 82.41%to 86.84%(x2=5.451,P<0.05).The proportion of syphilis positive patients decreased from 7.43%to 2.77%(x2=15.712,P<0.05).Conclusions The implementation of HIV/AIDS transmission risk assessment and classified intervention has achieved initial results in Taizhou,which can effectively reduce the proportion of HIV/AIDS patients at high or very high transmission risk,increase the proportion of those receiving cART,and reduce the proportion of syphilis positive patients.Risk assessment and classified intervention management strategies for HIV/AIDS patients should be further optimized to reduce viral load and effectively control the second-generation transmission of infection sources.