ArticleJournal of clinical laboratory analysis2020
Ethnic, geographic, and seasonal differences of vitamin D status among adults in south-west China.
Article in Journal of clinical laboratory analysis, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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
8 citing papers in PubMed, 14 citations in OpenAlex.
- Evaluating the predictive effect of vitamin D on clinical outcomes of infliximab-treated Crohn's disease patients in western China.Clinical and experimental medicine · 2024Article
- Vitamin D status among residents of Molidawa Daur Autonomous Banner, Inner Mongolia, North China.Saudi medical journal · 2023Article
- Decreased Vitamin D Levels and Altered Placental Vitamin D Gene Expression at High Altitude: Role of Genetic Ancestry.International journal of molecular sciences · 2023Article
- Cerebrospinal fluid oligoclonal bands in Chinese patients with multiple sclerosis: the prevalence and its association with clinical features.Frontiers in immunology · 2023Article
- Spatial distribution differences of 25-hydroxyvitamin D in healthy elderly people under the influence of geographical environmental factors.Scientific reports · 2022Article
- Can vitamin D status influence seroconversion to SARS-COV2 vaccines?Frontiers in immunology · 2022Article
- Poor Status of Vitamin D: A Survey of Area With Lowest Sunlight Radiation in Sichuan, China.Frontiers in endocrinology · 2021Article
- Ethnic, geographic, and seasonal differences of vitamin D status among adults in south-west China.Journal of clinical laboratory analysis · 2020Article
Corrections and comments
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Authors and funding
14 authors at 6 institutions in 1 country.
Funding
Abstract
backgroundThere are limited data on vitamin D status of Sichuan province, and no investigation has been carried out on the correlations of 25(OH)D and BTMs between healthy Hans and Tibetans of Sichuan province. This study aimed to examine 25(OH)D levels around Sichuan province and to assess differences by ethnicity, age, gender, sunlight exposure, geographic location, and seasons.
methodsBlood samples from 2317 healthy adults aged of 18 to 75 years and of Han and Tibetan ethnicities were collected in six regions and during four seasons. Serum 25(OH)D
resultsParticipants aged 18-40 years showed significantly lower 25(OH)D levels than participants aged 41-75 years old (P < .0001). The median serum 25(OH)D level for males was significantly higher than that of females (P < .0001). Serum 25(OH)D levels among four seasons and different districts varied significantly (P < .0001). In addition, the 25(OH)D level of Tibetans was significantly lower than that of Hans, while the serum total P1NP and β-CTX levels of Tibetans were significantly higher than those of Hans (P < .0001).
conclusionAdult population was more common to have vitamin D deficiency/insufficiency among Tibetans, females, north regions and in spring and winter.
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