Trial reportJournal of sleep research2018
Changes of vitamin D levels and bone turnover markers after CPAP therapy: a randomized sham-controlled trial.
Trial report in Journal of sleep research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
13 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Obstructive sleep apnea and vitamin D: an updated systematic review and meta-analysis.Hormones (Athens, Greece) · 2023Pooled it
- Obstructive sleep apnea and vitamin D: an updated systematic review and meta-analysis.Hormones (Athens, Greece) · 2023Pooled it
- Expert consensus on osteoporosis risk management in patients with sleep disorders.Bone research · 2026Review
- Sleep-Disordered Breathing and Decreased Bone Mineral Density: Masking Effects of Body Mass Index.Obesity facts · 2026Article
- Vitamin D Deficiency Is Associated with a Higher 5-Year Risk of Obstructive Sleep Apnea and CPAP Use in Older Adults: An Anchor-Based Network Meta-Analysis.Medicina (Kaunas, Lithuania) · 2026Article
- Vitamin D and Sleep Disorders.Advances in experimental medicine and biology · 2026Review
- Sleepiness and Vitamin D Levels in Patients with Obstructive Sleep Apnea.Healthcare (Basel, Switzerland) · 2024Article
- Obstructive sleep apnea and vitamin D level: Has the dust settled?The clinical respiratory journal · 2024Review
- Vitamin D Levels in Patients with Overlap Syndrome, Is It Associated with Disease Severity?Journal of personalized medicine · 2022Article
- Sleep duration as an independent factor associated with vitamin D levels in the EPISONO cohort.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021Article
- Obstructive Sleep Apnea and Risk for Incident Vertebral and Hip Fracture in Women.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2020Article
- The role of vitamin D in obstructive sleep apnoea syndrome.Breathe (Sheffield, England) · 2018Review
- Interactions between and Shared Molecular Mechanisms of Diabetic Peripheral Neuropathy and Obstructive Sleep Apnea in Type 2 Diabetes Patients.Journal of diabetes research · 2018Review
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim was to investigate whether continuous positive airway pressure treatment could modulate serum vitamin D (25-hydroxyvitamin D) and bone turnover markers (collagen-type 1 cross-linked C-telopeptide, osteocalcin and N-terminal propeptide of type 1 collagen) in secondary analysis from a randomized controlled trial. Sixty-five continuous positive airway pressure-naïve male patients with obstructive sleep apnea (age = 49 ± 12 years, apnea-hypopnea index = 39.9 ± 17.7 events h
Indexed as
Identifiers
28944524What OpenQuestion holds
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.