{
  "abstract": "Background: Syphilis remains a major global public health concern in various groups, including people in prisons, where the burden is substantial. This study aimed to identify factors associated with syphilis infection among newly admitted prisoners in a province of Thailand. Methods: A case–control study was conducted among newly admitted prisoners in three correctional facilities. Cases and controls were randomly selected from newly admitted prisoners who had undergone syphilis screening at prison entry between 01/04/2025 and 30/09/2025. Data were collected using validated data collection instruments, including case record forms and structured questionnaires. Multivariable logistic regression analysis was used to identify factors associated with syphilis infection among newly admitted prisoners, with statistical significance set at p-value < 0.05. Results: A total of 51 cases and 204 controls were included in the study. In multivariable logistic regression analysis, homosexual or bisexual orientation (adjusted odds ratio [AOR] = 9.59; 95% confidence interval [CI]: 1.81–50.92), a history of sexually transmitted infections (AOR = 38.03; 95% CI: 10.46–138.31), anal intercourse (AOR = 4.47; 95% CI: 1.05–19.12), sexual intercourse without condom use (AOR = 13.82; 95% CI: 3.38–56.43), and injection drug use (AOR = 45.60; 95% CI: 2.88–722.12) were significantly associated with syphilis infection among newly admitted prisoners. Conclusions: Prison entry represents a critical opportunity for syphilis screening. Risk-based screening strategies targeting individuals with high-risk sexual behaviors and substance use should be prioritized to reduce syphilis transmission in correctional facilities.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Community Health, Faculty of Public Health, Naresuan University, Phitsanulok, Thailand",
    "Office of Disease Prevention and Control Region 2, Department of Disease Control, Ministry of Public Health, Phitsanulok, Thailand"
  ],
  "article_type": "Research Article",
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Thanaset Hiranbandit"
    },
    {
      "affs": [
        1
      ],
      "name": "Wutthichai Jariya"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1sdpdy5rez3pd.bib",
  "cited_by": 0,
  "doi": "10.1371/journal.pone.0360956",
  "fulltext_url": null,
  "id": "1sdpdy5rez3pd",
  "issns": [
    "1932-6203"
  ],
  "landing_url": "https://doi.org/10.1371/journal.pone.0360956",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2737|Syphilis Diagnosis and Treatment"
    ],
    [
      "plos",
      "/Biology and life sciences/Physiology/Reproductive physiology/Copulation"
    ],
    [
      "plos",
      "/Medicine and health sciences/Epidemiology/Medical risk factors"
    ],
    [
      "plos",
      "/Medicine and health sciences/Medical conditions/Infectious diseases/Bacterial diseases/Treponematoses/Syphilis"
    ],
    [
      "plos",
      "/Medicine and health sciences/Medical conditions/Infectious diseases/Sexually transmitted diseases"
    ],
    [
      "plos",
      "/Medicine and health sciences/Medical conditions/Infectious diseases/Sexually transmitted diseases/Syphilis"
    ],
    [
      "plos",
      "/Medicine and health sciences/Medical conditions/Tropical diseases/Neglected tropical diseases/Treponematoses/Syphilis"
    ],
    [
      "plos",
      "/Medicine and health sciences/Urology/Genitourinary infections/Syphilis"
    ],
    [
      "plos",
      "/People and places/Population groupings/Sexuality groupings/Bisexuals"
    ],
    [
      "plos",
      "/People and places/Population groupings/Sexuality groupings/Homosexuals"
    ],
    [
      "plos",
      "/Social sciences/Law and legal sciences/Criminal justice system/Prisons"
    ],
    [
      "plos",
      "/Social sciences/Law and legal sciences/Criminal justice system/Prisons/Prisoners"
    ]
  ],
  "openalex": "W7222394245",
  "pdf_url": "https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0360956&type=printable",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-16",
  "publisher": "Public Library of Science",
  "ris": "https://research.draconitic.com/paper/1sdpdy5rez3pd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:23Z",
      "native_id": "10.1371/journal.pone.0360956",
      "source": "plos",
      "url": "https://doi.org/10.1371/journal.pone.0360956"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "plos:infectious diseases",
      "subfield": "infectious-disease"
    }
  ],
  "title": "Risk factors for syphilis among newly admitted prisoners: A case–control study",
  "title_text": "Risk factors for syphilis among newly admitted prisoners: A case–control study",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:23Z",
  "url": "https://research.draconitic.com/paper/1sdpdy5rez3pd",
  "venue": "PLOS One",
  "versions": []
}