- Despite a wide variety of state- and regional-based HIV diagnoses in men who have sex with men (MSM), disproportionately high new diagnoses continue to be found in MSM aged 18-24 years.
- Prevalence continues to grow; highest prevalence observed in MSM aged >45 years.
Why this matters
- Increased promotion of viral suppression, prevention (i.e., preexposure prophylaxis [PrEP], condoms) recommended, especially in the South and Northeast U.S.
- Design HIV prevention strategies based on age/audience.
- Across states/age, increasing HIV prevalence observed with increasing age, ranging from 0.2% (18-24 years) to 36.4% (25-34 years).
- Within-state prevalence rates increased through 45-54 years age group; West had highest rates in older MSM (standardized prevalence ratio 2.20; 95% CI, 2.17-2.23).
- Compared with the Midwest and South, Northeast had higher than expected prevalence rates.
- Overall age-adjusted standardized diagnosis ratios [SDR] showed 70% higher than expected diagnoses in 18-24 years age group in the Northeast (SDR, 1.70; 95% CI, 1.65-1.75) and 74% in South (SDR, 1.74; 95% CI, 1.71-1.77) vs Midwest.
- Epidemiological surveillance study estimating state-level MSM population size, rate of prevalent and new HIV diagnoses in 2013, 2016, respectively.
- Funding: CDC.
- Race-stratified estimates lacking.
- Misclassification errors.
- Data restricted to weighted samples.
- Self-report bias.
- Inconsistent surveillance practices.