# PRESS RELEASE
**FOR IMMEDIATE RELEASE**
**Embargoed until**: pending Trellison Institute methodology rating + LedgerWell evidence-chain certification.
**Contact**: [email protected]
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## Youth Mental Health Access Gap Is Two and a Half Times the Adult Gap, Trellison Institute Working Paper Finds — and State Policy Choice Is the Binding Constraint
**A new methodology-rated state-level analysis from Trellison Institute joins federal youth mental-health surveillance to the licensed-provider registry and finds 39.4% of high-school students experience persistent sadness or hopelessness for two weeks or more in a year — more than double the adult rate — and supply varies roughly 85× across states.**
**Trellison Institute** today released the V1 draft of *The Youth Mental Health Access Gap is Structurally More Severe Than the Adult Gap and Wider Across States*, an open-source working paper extending the Need-vs-Access Framework v1 to the under-18 population. The study joins CDC Youth Risk Behavior Surveillance System (YRBSS) 2023 state-level prevalence with the CMS National Provider Identifier registry filtered to eight youth-serving mental-health taxonomies, the ACS state-level under-18 population, and the ACS state-level under-19 uninsured rate.
The headline findings:
- **39.4%** population-weighted national prevalence of high-school students reporting 2+ weeks of persistent sadness or hopelessness in the past 12 months. Approximately **16.5 million young people** in the 35 participating states.
- **2.4×** the adult companion paper's 16.8% pop-weighted national prevalence of frequent mental distress.
- **~85× range** in youth-serving mental-health provider density across states. Connecticut: 500 providers per 100,000 under-18. Puerto Rico: 5.8.
- **Three positive outliers** (states where the gap is unexpectedly worse than the uninsured rate predicts): Puerto Rico (+2.39σ), North Carolina (+1.81σ), New Jersey (+1.53σ).
- **Two negative outliers** (states where the gap is unexpectedly better): Vermont (-1.70σ), Alaska (-1.69σ).
**"The youth gap is not the adult gap multiplied,"** said the project research team. **"It is structurally different. At the state level, supply distribution is the dominant variable, and supply varies more dramatically for youth-serving providers than for adult-serving providers. The youth access conversation is therefore best framed at the state policy level — which states have invested in youth-serving workforce capacity and which have not."**
The study identifies two distinct policy patterns that close the gap:
1. **Vermont's pattern**: a state university medical center + state Medicaid expansion + a statutorily-defined Designated Agency system that mandates community mental-health capacity. Result: 1,059 youth-serving providers per 100,000 under-18 and the lowest youth distress prevalence in the dataset (29.3%).
2. **Alaska's pattern**: the Indian Health Service + state-employed village-based mental-health workforce + federal Title V MCH block grants for tribal communities. Result: 1,085 youth-serving providers per 100,000 under-18, even though Alaska's youth distress prevalence is among the highest in the dataset (43.2%).
Both are policy-driven, not market-driven.
## The under-investment pattern
The three positive outliers cluster on a single structural pattern: **youth-serving workforce supply that is dramatically under-invested relative to what the state's insurance landscape predicts**. Puerto Rico is the extreme case — its post-Hurricane Maria health-system disruption combined with decades of federal Medicaid-payment cap policy has left the territory with the lowest youth-serving provider density in the analysis. North Carolina and New Jersey are more puzzling: both have strong adult mental-health workforces but appear to have not extended that capacity to under-18 services proportionally.
The federal policy levers for the workforce-undersupply pattern are the Behavioral Health Workforce Education and Training (BHWET) program with youth-specific tracks, the Certified Community Behavioral Health Clinic (CCBHC) payment model with explicit youth-serving certification, and the Title V Maternal and Child Health Block Grant.
## The Methodology Audit
The Youth Mental Health Access Gap V1 is the **second published application of the Need-vs-Access Framework**, following the adult Mental Health Access Gap V1 (Trellison Institute, May 2026). The framework is parameterized and reusable: the same code runs at tract, county, ZCTA, or state geography, with within-state OLS or national OLS for residual regression, and is bound at runtime to any combination of need / access / population / covariate sources.
The youth analysis required a single parameter addition to the framework (`regression_grouping`) and no other code changes. The framework is registered as `atlas.need_vs_access_framework_v1` v1.1.0 in the DaedArch tool registry and is published under CC-BY-4.0.
The full content arsenal — working paper, methodology supplement, dataset CSV, data dictionary, per-state dartboard narratives, executive brief, replication package, slides, narration script, animated visualizations, and the public hub — will be available at:
**https://trellison.com/research/youth-mental-health-supply-demand-gap**
## About the framework's broader scope
Eleven other access domains are queued for the same framework: poverty safety-net, English-language acquisition, jobs vs job seekers, postsecondary access, library access, police per capita, maternal care, dental care, broadband, oncology, and crisis response. Each domain swap is a data-input change; the framework code does not change.
## About Trellison Institute, LedgerWell, and DaedArch
Trellison Institute is the methodology-audit arm of the DaedArch platform. It does not influence research; it is the audience. It rates methodology, not conclusions. The Youth Mental Health Access Gap V1 is its second published audited research output.
LedgerWell Corporation provides the evidence-chain certification substrate for each Trellison Institute publication. Every analytical step in the Youth Mental Health Access Gap V1 is cryptographically attested and verifiable.
DaedArch Corporation is the public-facing operating entity for the Icarus Flew research mission. The DaedArch platform integrates analysis, methodology audit, evidence-chain certification, and publication into a single end-to-end pipeline. DaedArch is led by Rob Stillwell with DaedArch AI as operational partner.
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**For data and replication**: [email protected]
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**Working paper DOI**: pending Zenodo registration
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