Evidence map›Paper›PMID 18284636›Full record

ArticleClinical endocrinology2008

Vitamin D and bone health in adults with cystic fibrosis.

Linda L Wolfenden, Suzanne E Judd, Reshma Shah, Rupan Sanyal, Thomas R Ziegler, Vin Tangpricha

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Clinical endocrinology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01426256 (Vitamin D for Enhancing the Immune System in Cystic Fibrosis), which is not on this map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
6.1field-weighted citation impact, top 4% 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.

NCT01426256 phase3completednot on this mapstarted 2011, after this paper: background citation

Vitamin D for Enhancing the Immune System in Cystic Fibrosis

TypeinterventionalSponsorEmory UniversityRan2011 to 2017Enrolled91ConditionsCystic Fibrosis, Respiratory Tract InfectionsArmsCholecalciferol
3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 110 citations in OpenAlex.

  1. Pooled it
  2. Large, single-dose, oral vitamin D supplementation in adult populations: a systematic review.Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists · 2014
    Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Free 25-Hydroxyvitamin D Concentrations in Cystic Fibrosis.The American journal of the medical sciences · 2015
    Trial
  8. Trial
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  10. Trial
  11. Cystic Fibrosis-Related Bone Disease in Youth: High-Risk Population With Low Screening Adherence.Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists · 2026
    Article
  12. Updates in Cystic Fibrosis Bone Disease in Adults.Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists · 2026
    Review
  13. Article
  14. Cystic fibrosis-related bone disease: an update on screening, diagnosis, and treatment.Therapeutic advances in endocrinology and metabolism · 2025
    Review
  15. Article
  16. Article
  17. Review
  18. Trabecular bone score in people with cystic fibrosis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2022
    Article
  19. Article
  20. Article
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

6 authors at 2 institutions in 2 countries.

Linda L WolfendenDepartment of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, Emory University School of Medicine, Emory University Cystic Fibrosis Center, Atlanta, GA 30322, USA.
Suzanne E Judd
Reshma Shah
Rupan Sanyal
Thomas R Ziegler
Vin Tangpricha
Emory University · USNutrition Sciences (Belgium) · BE

Funding

Atlanta Clinical and Translational Science Institute (ACTSI) RenewalUL1TR000454 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$25.8M
Role of T-cells in Osteoporosis in Women Undergoing Surgical MenopauseK23AR054334 · NIAMS · EMORY UNIVERSITY · PI TANGPRICHA, VIN · 2007 to 2011
$641k
NCATS NIH HHS UL1 TR000454NIAMS NIH HHS K23 AR054334NIAMS NIH HHS K23AR054334
6 · The paper itself

Abstract

backgroundCystic fibrosis (CF) patients have chronic pancreatic insufficiency leading to malabsorption of fat-soluble vitamins, including vitamin D which can contribute to poor skeletal health and respiratory function.

objectiveThis study evaluated the prevalence of vitamin D insufficiency and its impact on bone and respiratory health in adults with CF. DESIGN AND MEASUREMENTS: This was a retrospective study in which data were collected from medical records over a 2-year period. Data included patient demographics, lung function, biochemical data, bone mineral densities, X-rays and ascertainment of use of vitamin supplements. Data were collected from medical records at a single accredited CF Center. Serum 25-hydroxyvitamin D [25(OH)D] levels and bone mineral density studies were also collected. PATIENTS: A total of 185 adults with CF were identified with a mean age of 29 +/- 9 years.

resultsThe prevalence of vitamin D insufficiency [25(OH)D < 75 nmol/l] was 76%. Mean serum 25(OH)D concentrations were 58.8 +/- 30 nmol/l. Use of specific vitamin D supplementation was protective against vitamin D insufficiency whereas use of multivitamins was not. There was a small, but significant, positive association between serum 25(OH)D and FEV(1) per cent predicted after controlling for age, gender, BMI and race (R(2) = 0.30, P < 0.001). A high prevalence (27%) of vertebral fractures was detected on lateral chest X-ray.

conclusionsThe prevalence of vitamin D insufficiency and poor skeletal health is high in the US CF population. Vitamin D status appears to be positively associated with lung function. Prospective studies to examine the impact of correction of vitamin D insufficiency on skeletal and lung health in adult CF are warranted.

Indexed as

AdultBone and BonesBone DensityBone DiseasesCystic FibrosisFemaleHealthHumansMalePrevalenceRetrospective StudiesSeasonsVitamin DVitamin D DeficiencyYoung AdultVitamin D

Identifiers

PMID18284636
PMCPMC2851223
OpenAlexW2087492995

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.