Among US young adults aged 18–34, chronic-condition prevalence increased from 52.5% in 2013 to 59.5% in 2023, and multiple chronic condition prevalence increased from 21.8% to 27.1% over the same period.
Notes on verification
Verbatim statistic from CDC BRFSS-based study published in Preventing Chronic Disease (2025), corroborated by PubMed and PMC full text with matching figures; no contradicting data found.
Sources
- Trends in Multiple Chronic Conditions Among US Adults ... (cdc.gov)
- https://pubmed.ncbi.nlm.nih.gov/40245168/ (pubmed.ncbi.nlm.nih.gov)
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12007472/ (ncbi.nlm.nih.gov)
- https://www.definitivehc.com/blog/chronic-disease-landscape-trends (definitivehc.com)