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Medical Monitoring Project


The Medical Monitoring Project (MMP) is a surveillance project designed to learn more about the experiences and needs of people who are receiving care for HIV. It is conducted by state and local health agencies and CDC. The project is designed to answer the following questions: How many people living with HIV/AIDS are receiving care for HIV? How easy is it to access care and use prevention and support services? What needs of persons living with HIV/AIDS are not met? How is treatment affecting people living with HIV/AIDS?

Centers for Disease Control and Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention
Data Years Available: 
Mode of Collection: 
Selected Content: 
Patient demographic characteristics, income, health insurance coverage, method of payment for HIV-related drugs, met and unmet HIV-related care needs.
Population Covered: 
Persons receiving care for HIV in the United States.

A three-stage sampling design is used. In stage one, a sample of 16 states and 1 territory was selected from among the 50 states. The selected states included 6 separately funded cities, resulting in 23 participating areas. In stage 2, outpatient HIV medical care facilities in the sampled project areas are sampled every two years based on the number of patients seen at the facilities. The annual sample includes about 25-50 facilities per project area representing small, medium, and large HIV medical care facilities. Facilities are eligible to participate if they prescribe antiretroviral medications or order CD4 and/or HIV viral load tests in the context of treating and managing HIV. For stage 3, a sample of about 400 patients from each project area is selected each year from participating health care facilities. Patients must be at least 18 years old, diagnosed with HIV, and receiving care. Selected patients are asked to participate in an interview about their HIV care.

Response Rates and Sample Size: 
Interpretation Issues: 

Centers for Disease Control and Prevention. Clinical and Behavioral Characteristics of Adults Receiving Medical Care for HIV Infection: Medical Monitoring Project, 2005 Pilot Data Collection Cycle. HIV Special Surveillance Report 6. HIV Surveillance Reports. Published June 10, 2010. Accessed August 28, 2010.