Evidence map›Paper›PMID 33818653›Full record

Observational studyCalcified tissue international2021

Epidemiology of Tumor-Induced Osteomalacia in Denmark.

Bo Abrahamsen, Christopher D Smith, Salvatore Minisola

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Calcified tissue international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.2field-weighted citation impact, top 5% of its field
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

29 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Phosphaturic Mesenchymal Tumor: From Invisibility to Bedridden Morbidity.Journal of the ASEAN Federation of Endocrine Societies · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Unmasking Skull Base Phosphaturic Mesenchymal Tumors: A Rare and Treatable Cause of Tumor-Induced Osteomalacia.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2025
    Article
  8. Article
  9. Review
  10. Healthcare Resource Use Associated With Tumor-Induced Osteomalacia: A Literature Review.The Journal of clinical endocrinology and metabolism · 2024
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. A case of hyperparathyroidism secondary to tumor-induced osteomalacia.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2023
    Article
  17. Article
  18. Article
  19. Review
  20. Review
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

3 authors at 2 institutions in 3 countries.

Bo AbrahamsenOpen Patient Data Explorative Network (OPEN), Department of Clinical Research, University of Southern Denmark and Odense University Hospital, 5000, Odense C, Denmark. b.abrahamsen@physician.dk.ORCID 0000-0002-2730-6080
Christopher D SmithOpen Patient Data Explorative Network (OPEN), Department of Clinical Research, University of Southern Denmark and Odense University Hospital, 5000, Odense C, Denmark.ORCID 0000-0002-1909-9245
Salvatore MinisolaDepartment of Internal Medicine and Medical Disciplines, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy.ORCID 0000-0001-6525-0439
University of Southern Denmark · DKPoliclinico Umberto I · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tumor-induced osteomalacia (TIO) is a rare, acquired condition of phosphate wasting due to phosphaturic mesenchymal tumors. Because the incidence and prevalence of TIO is unknown, we conducted an observational cohort study using national Danish health registers for the period 2008 to 2018 to obtain such information. The study also aimed to describe the demographics of the TIO population and the prognosis. The operational definition was based on hypophosphatemia or adult osteomalacia diagnoses, combined with prescriptions used in the initial management and procedures consistent with advanced imaging used for locating tumors. The incidence of TIO in Denmark was found to be below 0.13 per 100,000 person years for the total population of the country and 0.10 per 100,000 in adult-onset disease. The prevalence of TIO was estimated to be no more than 0.70 per 100,000 persons for the total population and 0.43 per 100,000 in adults. In 2018, there were a maximum of nine new cases of TIO in Danish adults. Mortality was low but few patients fulfilled the protocol cure criterion during the observation period. TIO has no ICD-10 code and limitations to the study include lack of information on serum biochemistry and on the use of phosphate supplements. Strengths include the use of long-term longitudinal, national hospital and prescription data from a country with universal healthcare. Given the very small patient population with TIO and the known delay to diagnosis and cure, management of patients with suspected TIO should be centralized.

Indexed as

HypophosphatemiaNeoplasms, Connective TissueOsteomalaciaAdultCohort StudiesDenmarkFibroblast Growth FactorsHumansParaneoplastic SyndromesFibroblast Growth FactorsEpidemiologyHypophosphatemiaIncidencePhosphaturic mesenchymal tumorsPrevalenceTumor-induced osteomalacia

Identifiers

PMID33818653
PMCPMC8273058
OpenAlexW3141541541

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.