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Data & Statistics
The MDHHS Division of HIV and STI Programs - Surveillance and Epidemiology Section develops reports using surveillance and supplemental data to inform care and prevention efforts and to inform the community.
If you have questions about the data presented here, or if you would like to request additional data, please complete the Data Report and Technical Assistance Request Form.
▶ Information about HIV and STIs: HIV & STIs 101
A brief overview of STI statistics for the 2020 calendar year, released for STI awareness week April 11-17, 2021.
HIV Care Continuum Report, 2020 (data as of April 2021)
Care Continuum and Housing, 2018 (created 2019)
This report compares care disparities among individuals with stable vs temporary or unstable housing. In all of Michigan's Public Health regions, persons with temporary of unstable housing experience poorer care outcomes.
Link-Up Michigan Outcome Report, 2019 (data as of July 2020)
This report contains information pertaining to the Link-up Michigan program for the city of Detroit and Michigan counties. The report details demographics for not in care residents, outcomes of Link-up investigations, care status for those who accepted care, Link-up investigation contact attempts, and barriers to receiving care. For more information regarding Link-up Michigan, please visit Link-Up MI.
HIV Testing, 2017 (data as of 2018)
HIV Partner Services, 2017 (data as of 2018)
See Hepatitis B and C Annual Surveillance Report for data on people with hepatitis who are also living with HIV.
This fact sheet looks at TB-HIV coinfections in Michigan over the past 15 years and highlights the importance of HIV testing among confirmed and probable TB cases.
- Coming soon
- Archived Reports
- HIV Mortality in Michigan, 2014 (data as of 2016)
The final 2020 NHAS Report will likely be delayed at least one year due to COVID-19. Most indicators are measured using HIV lab data. Due to the decrease of in-person medical appointments, a significant drop in HIV laboratory reports occurred during 2020. Therefore, new diagnoses and care rates observed during 2020 are low. Revisiting these indicators after 2021 will paint a more accurate picture of Michigan's progress toward the NHAS goals.
This MDHHS Vital Records and Health Statistics Section website reports statistics for three types of sexually transmitted infections (STIs): chlamydia, gonorrhea, and syphilis. Syphilis is grouped by all syphilis, or as primary and secondary syphilis. Primary and secondary syphilis reports represent initial stages of syphilis, when transmission is most likely to occur. The website offers 20 years of information for each infection, with data divided into trend tables and yearly tables by gender, age, counties, and health districts.
- STI data comes from the Michigan Disease Surveillance System (MDSS). STI cases are dated using onset date, when available, then specimen collection date, if available, and then date referred to the MDSS if both other dates are missing. Cases included in reports are probable and confirmed based on CDC case definitions.
- HIV data comes from enhanced HIV/AIDS Reporting System (eHARS), CAREWare, and Evaluation Web. In Michigan, mandatory HIV lab reporting began in 2006. Therefore, diagnoses and care measures, in general, are based on laboratory reports.
- eHARS is a browser-based,Center for Disease Control and Prevention (CDC)-developed application that assists health departments with reporting, data management, analysis, and transfer of data to CDC. This system contains basic demographic information (age, race, gender, transmission risk, location) and HIV-related laboratory reports. Advantages: includes all PLWH who have resided in Michigan; entry/edit rights are restricted to a very small group of staff, ensuring clean and consistent data. Limitations: updates after diagnosis are limited to information included in laboratory reports. eHARS does not capture socio-economic information. Other notes: Prevalence is based on last known address. Major changes to last known address occurred in 2014 and 2020; therefore, reports published since 2020 may not be comparable to previous reports.
- CAREWare is a web-based, electronic health and social support services information system for the Health Resources and Services Administration's (HRSA's) Ryan White HIV/AIDS Program recipients and providers. This system contains basic demographic information (date of birth, race, gender, transmission risk, location), socioeconomic factors (income, housing status, and health insurance provider), and Ryan White services received. Advantages: includes socioeconomic elements, and care service information not dependent on laboratory reports. Limitations: only includes persons receiving Ryan White and related services (not all persons living with HIV); the type of data entry/edits depends on the needs of the agency, which may result in more up-to-date, but less consistent, data, compared to eHARS. Other notes: CAREWare is used to produce federal reports, such as the Ryan White HIV/AIDS Program Services Report(RSR) and the AIDS Drug Assistance Program Data Report (ADR), and supplement eHARS-based reports, such as the Continuum of Care Report.
- Evaluation Web is a direct-entry database, developed by Luther Consulting, that contains 18-1802-funded HIV testing information and Partner Services data. This system contains demographic information, test results, risk information, and intervention referrals for persons tested for HIV in the State of Michigan. Advantages: includes positive and negative test results, and Partner Service networks not available in other systems. Limitations: restricted to PS18-1802-funded tests. Other notes: Much of the data collected in Eval Web is based on self-report.
- Population data comes from the U.S. Census Bureau and the National Center for Health Statistics. These data are used as the denominator in rate calculations so that HIV and STI outcomes can be compared across groups and geographies. Each year, the Census Bureau's Population Estimates Program (PEP) uses current data on births, deaths and migration to calculate population change since the most recent decennial Census and produces a time series of estimates of population. The Census Bureau, however, does not release estimates by single-year of age at the county level due to concerns about the reliability of these estimates, so they are provided to us via the National Center for Health Statistics to meet programmatic needs (e.g., the creation of age groupings that differ from the standard groupings used by the Census Bureau). The Census Bureau's American Community Survey (ACS) provides annual "5-year" estimates, which represent data collected over a period of time. Using the ACS 5-year estimates rather than the 1-year estimates for less populated areas and small population subgroups provides increased statistical reliability. Thus, these estimates are generally used for calculating rates for cities and race, sex, and age subgroups within cities.
- Defining Unmet Need and Linkage to Care (created 2018)
- HIV Transmission Risk Category Definitions (created 2020)