{
  "abstract": "Mobile patient portal apps play an increasingly important role in facilitating timely access to health information, improving patient-provider communication, supporting care coordination, and enabling chronic disease management. Despite these benefits, the widespread adoption of these apps remains limited. This study aimed to identify key factors associated with mobile portal app use by extending the unified theory of acceptance and use of technology (UTAUT) with additional psychological and behavioral factors. A cross-sectional survey was conducted using an online platform to recruit U.S. adults. A total of 386 valid responses were included in the analyses. Multivariable regression analyses were performed while adjusting for relevant covariates to examine factors associated with behavioral intention and mobile portal app use. Subjective norm (SN) was positively associated with perceived usefulness (PU), and PU was positively associated with behavioral intention. Greater perceived ease of use (PEOU) and outcome expectancy (OE), as well as lower perceived privacy risk, were associated with stronger intention. In addition, perceived behavioral control (PBC) moderated the relationship between intention and reported app use, such that intention was more strongly associated with use among individuals with greater PBC. This study extends UTAUT by incorporating privacy risk as an additional determinant and PBC as a moderator of the relationship between behavioral intention and app use. These findings provide theoretical and practical insights that may inform efforts to develop targeted interventions and optimize app features to promote mobile portal app use.",
  "abstract_shown": true,
  "affiliations": [
    "Pharmacy Administration and Public Health, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA.",
    "Plainview-Old Bethpage John F. Kennedy High School, Plainview, NY, USA.",
    "Jericho High School, Jericho, NY, USA."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Taehwan Park",
      "orcid": "0000-0002-1175-1016"
    },
    {
      "affs": [
        1
      ],
      "name": "Ethan Sung"
    },
    {
      "affs": [
        2
      ],
      "name": "Brian Kim"
    },
    {
      "affs": [
        2
      ],
      "name": "Juha Lee"
    },
    {
      "affs": [
        2
      ],
      "name": "Jihoo Yun"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7pn4pzcvx6h2x.bib",
  "cited_by": 0,
  "doi": "10.21037/mhealth-2026-0048",
  "fulltext_url": "https://europepmc.org/articles/PMC13744045",
  "id": "7pn4pzcvx6h2x",
  "issns": [
    "2306-9740"
  ],
  "landing_url": "https://europepmc.org/article/MED/42999798",
  "language": "eng",
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "1802|Technology Adoption and User Behaviour"
    ]
  ],
  "openalex": "W7223172313",
  "pdf_url": "https://europepmc.org/articles/PMC13744045?pdf=render",
  "pmcid": "PMC13744045",
  "pmid": "42999798",
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7pn4pzcvx6h2x.ris",
  "sources": [
    {
      "first_seen": "2026-11-09T15:20:41Z",
      "native_id": "MED:42999798",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42999798"
    }
  ],
  "subjects": [],
  "title": "Understanding mobile portal app use: a theoretical extension of unified theory of acceptance and use of technology (UTAUT).",
  "title_text": "Understanding mobile portal app use: a theoretical extension of unified theory of acceptance and use of technology (UTAUT).",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T15:20:41Z",
  "url": "https://research.draconitic.com/paper/7pn4pzcvx6h2x",
  "venue": "MHealth",
  "versions": []
}