Evidence map›Paper›PMID 30902083›Full record

ArticleBMC public health2019

Vitamin D deficiency in northern Taiwan: a community-based cohort study.

Ming-Jse Lee, Heng-Jung Hsu, I-Wen Wu, Chiao-Yin Sun, Ming-Kuo Ting, Chin-Chan Lee

Abstract read
In one paragraph

Article in BMC public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Prediction models and questionnaires developed to predict vitamin D status in adults: a systematic review.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2020
    Pooled it
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  7. Vitamin D, premature mortality, and life expectancy among US adults.Archives of public health = Archives belges de sante publique · 2025
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  10. Effects of Consuming Pulsed UV Light-TreatedFoods (Basel, Switzerland) · 2025
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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.

Ming-Jse LeeDivision of Nephrology, Chang Gung Memorial Hospital, 222 Mai-Chin Road, Keelung, 204, Taiwan.
Heng-Jung HsuDivision of Nephrology, Chang Gung Memorial Hospital, 222 Mai-Chin Road, Keelung, 204, Taiwan.
I-Wen WuDivision of Nephrology, Chang Gung Memorial Hospital, 222 Mai-Chin Road, Keelung, 204, Taiwan.
Chiao-Yin SunDivision of Nephrology, Chang Gung Memorial Hospital, 222 Mai-Chin Road, Keelung, 204, Taiwan.
Ming-Kuo TingDivision of Endocrinology, Chang Gung Memorial Hospital, Keelung, Taiwan.
Chin-Chan LeeDivision of Nephrology, Chang Gung Memorial Hospital, 222 Mai-Chin Road, Keelung, 204, Taiwan. leefang@adm.cgmh.org.tw.

Funding

Chang Gung Medical Foundation Chang Gung Memorial Hospital, Keelung CMRPG2B0141-5
6 · The paper itself

Abstract

backgroundVitamin D deficiency has become an important public health problem, however few studies have been conducted in subtropical countries, and the predictors of vitamin D deficiency in people with healthy renal function are unclear. The objective of this study was to evaluate the prevalence and factors associated with vitamin D deficiency in northern Taiwan.

methodsThe cross-sectional study was performed between August 2013 and August 2017, and included 3954 participants without chronic kidney disease (CKD) aged ≥30 years in northern Taiwan. Serum 25-hydroxyvitamin D [25(OH)-D] levels, biochemistry, sociodemographic variables (age, sex, education, occupation) and lifestyle habits (tea, coffee consumption and physical activities) were recorded. Associations between vitamin D status and these variables were examined using a regression model. The definition of deficiency was defined as a serum 25(OH)-D level < 20 ng/mL (50 nmol/L).

resultsThe mean 25(OH)-D concentration was 28.9 ng/mL, and 22.4% of the study population had vitamin D deficiency. There was a significantly higher vitamin D deficiency ratio in the women compared to the men (22.9% vs 9.9%, p < 0.001). Vitamin D deficiency was most prevalent (38.4%) in those aged 30-39 years. Those with a graduate degree had the highest rate of vitamin D deficiency (31.5%). The predictors of vitamin D deficiency included female sex, young age, high education level, living in an urban area and physical inactivity. Tea consumption was negatively associated with vitamin D deficiency.

conclusionsVitamin D deficiency is prevalent in subtropical areas such as northern Taiwan in healthy individuals without CKD.

Indexed as

AdultAgedCohort StudiesCross-Sectional StudiesFemaleHumansMaleMiddle AgedPrevalenceRisk FactorsTaiwanVitamin DVitamin D Deficiency25-hydroxyvitamin DVitamin DPrevalenceRisk factorTaiwanVitamin D deficiency

Identifiers

PMID30902083
PMCPMC6431073

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Registered trials

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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.