{
  "abstract": "Background/Objectives: We examined correlates of lumbar–femoral T-score differences (ΔT), retaining the triglyceride–glucose (TyG) index as the prespecified primary exposure. Methods: This retrospective cross-sectional analysis of routine records included 528 geriatric outpatients assessed in Ankara, Türkiye, in 2023; primary regression used 506 complete cases. ΔT was lumbar minus femoral-neck T-score. Device L1–L4 composites were used without vertebra-level exclusions because scan images were unavailable. Firth models and an exploratory post hoc arithmetic decomposition were secondary. Results: Male sex was associated with higher ΔT (B = +0.984; p < 0.001), uniquely explaining 9.87% of variance versus 0.88% for TyG. TyG estimates (95% CI) were +0.243 (+0.033 to +0.453; p = 0.023) in the primary analysis, +0.214 (−0.010 to +0.438; p = 0.061) retaining two records excluded by plausibility limits, and +0.070 (−0.115 to +0.255; p = 0.458) excluding influential observations. The male lumbar-worse OR was 0.12 (95% CI 0.03–0.31), based on 3/165 male events. Among patients with femoral-neck osteoporosis, lumbar T-scores exceeded −2.5 in 22/30 men versus 43/89 women (post hoc, unadjusted). Conclusions: Sex explained more unique ΔT variance than TyG. The TyG association was small and sensitive to analytic decisions. Unmeasured degeneration and selection bias limit interpretation.",
  "abstract_shown": true,
  "affiliations": [
    "Division of Geriatrics, Department of Internal Medicine, Faculty of Medicine, Kocaeli University, 41380 Kocaeli, Türkiye",
    "Geriatrics Clinic, Ankara Bilkent City Hospital, 06800 Ankara, Türkiye",
    "Division of Endocrinology and Metabolism, University of Health Sciences Ankara Training and Research Hospital, 06230 Ankara, Türkiye",
    "Department of Radiology, Faculty of Medicine, Kocaeli University, 41380 Kocaeli, Türkiye",
    "Division of Geriatrics, Department of Internal Medicine, Faculty of Medicine, Ankara Yıldırım Beyazıt University, 06800 Ankara, Türkiye"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Rıdvan Erten",
      "orcid": "0000-0002-1939-4738"
    },
    {
      "affs": [
        1
      ],
      "name": "Kübra Erdoğan",
      "orcid": "0000-0001-9193-5327"
    },
    {
      "affs": [
        2
      ],
      "name": "Mehmet Poyrazer",
      "orcid": "0000-0002-6390-2832"
    },
    {
      "affs": [
        3
      ],
      "name": "Özgür Çakır",
      "orcid": "0000-0001-6565-9488"
    },
    {
      "affs": [
        1
      ],
      "name": "Rana Tuna Doğrul"
    },
    {
      "affs": [
        4
      ],
      "name": "Hande Selvi Öztorun"
    },
    {
      "affs": [
        4
      ],
      "name": "Kamile Sılay",
      "orcid": "0000-0003-0384-4957"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a2bb97j92b1nz.bib",
  "cited_by": 0,
  "doi": "10.3390/jcm15207773",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13705045/?tool=EBI",
  "id": "a2bb97j92b1nz",
  "issns": [
    "2077-0383"
  ],
  "landing_url": "https://www.mdpi.com/2077-0383/15/20/7773",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2732|Bone health and osteoporosis research"
    ]
  ],
  "openalex": "W7221152731",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13705045/pdf/?tool=EBI",
  "pmcid": "PMC13705045",
  "pmid": null,
  "published": "2026-10-01",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/a2bb97j92b1nz.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:00Z",
      "native_id": "10.3390/jcm15207773",
      "source": "crossref",
      "url": "https://www.mdpi.com/2077-0383/15/20/7773"
    },
    {
      "first_seen": "2026-10-30T12:21:48Z",
      "native_id": "PMC:PMC13705045",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13705045"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2732|Bone health and osteoporosis research",
      "subfield": "surgery"
    }
  ],
  "title": "Correlates of the Lumbar–Femoral T-Score Difference in Older Adults: Sex Outweighs the Triglyceride–Glucose Index",
  "title_text": "Correlates of the Lumbar–Femoral T-Score Difference in Older Adults: Sex Outweighs the Triglyceride–Glucose Index",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:21:48Z",
  "url": "https://research.draconitic.com/paper/a2bb97j92b1nz",
  "venue": "Journal of Clinical Medicine",
  "versions": []
}