ArticleJournal of physical therapy science2016
Osteoporosis, vitamin C intake, and physical activity in Korean adults aged 50 years and over.
Article in Journal of physical therapy science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.
What it found
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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.
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Who cites it
15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.
- Pooled it
- Can Dietary Intake of Vitamin C-Oriented Foods Reduce the Risk of Osteoporosis, Fracture, and BMD Loss? Systematic Review With Meta-Analyses of Recent Studies.Frontiers in endocrinology · 2019Pooled it
- Does vitamin C supplementation improve rotator cuff healing? A preliminary study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2022Trial
- Comparing machine learning models for osteoporosis prediction in Tibetan middle aged and elderly women.Scientific reports · 2025Article
- Elucidating causal relationships of diet-derived circulating antioxidants and the risk of osteoporosis: A Mendelian randomization study.Frontiers in genetics · 2024Article
- Innovative Application of Chicken Eggshell Calcium to Improve the Functional Value of Gingerbread.International journal of environmental research and public health · 2022Article
- Article
- Evidence of a Positive Link between Consumption and Supplementation of Ascorbic Acid and Bone Mineral Density.Nutrients · 2021Review
- Functional Food for Elderly High in Antioxidant and Chicken Eggshell Calcium to Reduce the Risk of Osteoporosis-A Narrative Review.Foods (Basel, Switzerland) · 2021Review
- Nutrients in the Prevention of Osteoporosis in Patients with Inflammatory Bowel Diseases.Nutrients · 2020Review
- MicroRNA expression profiling in an ovariectomized rat model of postmenopausal osteoporosis before and after estrogen treatment.American journal of translational research · 2020Article
- The Paradoxical Role of Uric Acid in Osteoporosis.Nutrients · 2019Review
- Bioinformatics Analysis Reveals the Altered Gene Expression of Patients with Postmenopausal Osteoporosis Using Liuweidihuang Pills Treatment.BioMed research international · 2019Article
- Relationship between bone mineral density and dietary intake of β-carotene, vitamin C, zinc and vegetables in postmenopausal Korean women: a cross-sectional study.The Journal of international medical research · 2016Article
- Association of ACTN3 polymorphisms with BMD, and physical fitness of elderly women.Journal of physical therapy science · 2016Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
[Purpose] To investigate associations between vitamin C intake, physical activity, and osteoporosis among Korean adults aged 50 and over. [Subjects and Methods] This study was based on bone mineral density measurement data from the 2008 to 2011 Korean National Health and Nutritional Examination Survey. The study sample comprised 3,047 subjects. The normal group was defined as T-score ≥ -1.0, and the osteoporosis group as T-score ≤ -2.5. The odds ratios for osteoporosis were assessed by logistic regression of each vitamin C intake quartile. [Results] Compared to the lowest quartile of vitamin C intake, the other quartiles showed a lower likelihood of osteoporosis after adjusting for age and gender. In the multi-variate model, the odds ratio for the likelihood of developing osteoporosis in the non-physical activity group significantly decreased to 0.66, 0.57, and 0.46 (p for trend = 0.0046). However, there was no significant decrease (0.98, 1.00, and 0.97) in the physical activity group. [Conclusion] Higher vitamin C intake levels were associated with a lower risk of osteoporosis in Korean adults aged over 50 with low levels of physical activity. However, no association was seen between vitamin C intake and osteoporosis risk in those with high physical activity levels.
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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.