Evidence map›Paper›PMID 41789385›Full record

ArticleRisk management and healthcare policy2026

Access to Healthcare for Hydrocephalus in the United States: Analyzing the Hydrocephalus Association Patient-Powered Interactive Engagement Registry (HAPPIER).

Kevin H Miller, Samantha N Lanjewar, Noriana E Jakopin, Amanda Garzon, Paul Gross, Richard Holubkov, Mandeep S Tamber, Abhay Moghekar, Jason Preston, Margaret M Romanoski and 4 more

Abstract read
In one paragraph

Article in Risk management and healthcare policy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Kevin H MillerResearch Department, Hydrocephalus Association, North Bethesda, MD, USA.ORCID 0009-0000-4992-4050
Samantha N LanjewarResearch Department, Hydrocephalus Association, North Bethesda, MD, USA.ORCID 0000-0002-9227-3668
Noriana E JakopinResearch Department, Hydrocephalus Association, North Bethesda, MD, USA.
Amanda GarzonResearch Department, Hydrocephalus Association, North Bethesda, MD, USA.ORCID 0009-0005-8006-5529
Paul GrossCerebral Palsy Research Network, Greenville, SC, USA.
Richard HolubkovDepartment of Pediatrics, University of Utah, Salt Lake City, UT, USA.
Mandeep S TamberDivision of Neurosurgery, University of British Columbia, British Columbia Children's Hospital, Vancouver, BC, Canada.ORCID 0000-0003-3329-1011
Abhay MoghekarDepartment of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Jason PrestonResearch Department, Hydrocephalus Association, North Bethesda, MD, USA.
Margaret M RomanoskiAscension St. John Hospital, Detroit, MI, USA.
Chevis N ShannonAmerican Society for Reproductive Medicine, Birmingham, AL, USA.
Tessa van der WilligenGeorgetown University, Washington, DC, USA.
Jenna E KoschnitzkyResearch Department, Hydrocephalus Association, North Bethesda, MD, USA.
Monica J ChauResearch Department, Hydrocephalus Association, North Bethesda, MD, USA.ORCID 0000-0001-8858-9937

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: The hydrocephalus patient community has reported difficulties accessing medical care. The Hydrocephalus Association Patient Powered Interactive Engagement Registry (HAPPIER), a self-reported patient registry, provides a unique opportunity to examine the current landscape of healthcare access and barriers. This study aimed to identify and describe patterns in reported access to care among individuals with hydrocephalus in the United States. Methods: HAPPIER participants completed a survey which captured information about physician access and insurance information. Analyses focused on US-based respondents and included measures of insurance coverage, access to neurosurgeons and neurologists, frequency of specialist visits, first point of contact in non-emergency situations, and reported barriers due to cost. Results: HAPPIER included 606 US-based respondents. Half reported private health insurance, while 23.6% had Medicare and 20.1% Medicaid. A total of 17.2% reported lacking access to a neurosurgeon and 43.2% lacked access to a neurologist. Adults were significantly more likely than pediatric participants to lack access to specialists (23.0% vs 1.8% for neurosurgeons; 45.9% vs 36.1% for neurologists). Adults also reported less frequent visits to both neurosurgeons (p < 0.0001) and neurologists (p = 0.0013). In non-emergency situations, 50.5% of respondents identified a neurosurgeon as their first point of contact. 33.3% of participants reported financial barriers, particularly for medications (10.4%), medical specialists (9.9%), and rehabilitation services (8.4%). Adults more frequently reported difficulty accessing medications, specialists, and procedures, while pediatric patients reported more difficulty with rehabilitation services and genetic testing. Household income levels did not influence difficulty accessing care, other than for medications (p = 0.0075). Conclusion: Findings from HAPPIER highlight substantial barriers to accessing specialized care for individuals with hydrocephalus, with disparities by age and insurance type. These results underscore the need for standardized long-term care guidelines and healthcare policies that ensure equitable access to specialized providers and services for all hydrocephalus patients.

Indexed as

access to carehealthcare barriershydrocephalus

Identifiers

PMID41789385
PMCPMC12958962

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LicenceCC BY-NC
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.