scholarly journals Prevalence and predictors of vitamin D deficiency in a nationally representative sample of adults participating in the 2011–2013 Australian Health Survey

2019 ◽  
Vol 121 (8) ◽  
pp. 894-904 ◽  
Author(s):  
Eva Malacova ◽  
Peihua (Rachel) Cheang ◽  
Eleanor Dunlop ◽  
Jill L. Sherriff ◽  
Robyn M. Lucas ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Health Survey ◽  
Representative Sample ◽  
Public Health Problem ◽  
Sun Exposure ◽  
Complete Information ◽  
Activity Levels ◽  
Australian Health ◽  
Nationally Representative

AbstractVitamin D deficiency is recognised as a public health problem globally, and a high prevalence of deficiency has previously been reported in Australia. This study details the prevalence of vitamin D deficiency in a nationally representative sample of Australian adults aged ≥25 years, using an internationally standardised method to measure serum 25-hydroxyvitamin D (25(OH)D) concentrations and identifies demographic and lifestyle factors associated with vitamin D deficiency. We used data from the 2011–2013 Australian Health Survey (n 5034 with complete information on potential predictors and serum 25(OH)D concentrations). Serum 25(OH)D concentrations were measured by a liquid chromatography-tandem MS that is certified to the reference measurement procedures developed by the National Institute of Standards and Technology, Ghent University and the US Centers for Disease Control and Prevention. Vitamin D deficiency and insufficiency were defined as serum 25(OH)D concentrations <50 nmol/l and 50 to <75 nmol/l, respectively. Overall, 20 % of participants (19 % men; 21 % women) were classified as vitamin D deficient, with a further 43 % classified as insufficient (45 % men; 42 % women). Independent predictors of vitamin D deficiency included being born in a country other than Australia or the main English-speaking countries, residing in southern (higher latitude) states of Australia, being assessed during winter or spring, being obese, smoking (women only), having low physical activity levels and not taking vitamin D or Ca supplements. Given our increasingly indoor lifestyles, there is a need to develop and promote strategies to maintain adequate vitamin D status through safe sun exposure and dietary approaches.

Prevalence and predictors of vitamin D deficiency in a nationally representative sample of Australian Aboriginal and Torres Strait Islander adults

2020 ◽  
pp. 1-9
Author(s):  
Lucinda J. Black ◽  
Eleanor Dunlop ◽  
Robyn M. Lucas ◽  
Glenn Pearson ◽  
Brad Farrant ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Representative Sample ◽  
Torres Strait Islander ◽  
Public Health Problem ◽  
Healthy Weight ◽  
Remote Areas ◽  
Australian Aboriginal ◽  
Torres Strait ◽  
Nationally Representative

Abstract Vitamin D deficiency (serum 25-hydroxyvitamin D (25(OH)D) concentration <50 nmol/l) is recognised as a public health problem globally. The present study details the prevalence and predictors of vitamin D deficiency in a nationally representative sample (n 3250) of Australian Aboriginal and Torres Strait Islander adults aged ≥18 years. We used data from the 2012–2013 Australian Aboriginal and Torres Strait Islander Health Survey (AATSIHS). Serum 25(OH)D concentrations were measured by liquid chromatography-tandem MS. Survey-weighted logistic regression models were used to determine the independent predictors of vitamin D deficiency. Approximately 27 % of adult AATSIHS participants were vitamin D deficient. Vitamin D deficiency was more prevalent in remote areas (39 %) than in non-remote areas (23 %). Independent predictors of vitamin D deficiency included assessment during winter (men, adjusted OR (aOR) 5·7; 95 % CI 2·2, 14·6; women, aOR 2·2; 95 % CI 1·3, 3·8) and spring (men, aOR 3·3; 95 % CI 1·4, 7·5; women, aOR 2·6; 95 % CI 1·5, 4·5) compared with summer, and obesity (men, aOR 2·6; 95 % CI 1·2, 5·4; women, aOR 4·3; 95 % CI 2·8, 6·8) compared with healthy weight. Statistically significant associations were evident for current smokers (men only, aOR 2·0; 95 % CI 1·2, 3·4), remote-dwelling women (aOR 2·0; 95 % CI 1·4, 2·9) and university-educated women (aOR 2·4; 95 % CI 1·2, 4·8). Given the high prevalence of vitamin D deficiency in this population, strategies to maintain adequate vitamin D status through safe sun exposure and dietary approaches are needed.

scholarly journals Prevalence and Predictors of Vitamin D Deficiency among African Immigrants Living in Australia

2019 ◽  
Vol 16 (16) ◽  
pp. 2855 ◽  
Author(s):  
Kahlea Horton-French ◽  
Eleanor Dunlop ◽  
Robyn M. Lucas ◽  
Gavin Pereira ◽  
Lucinda J. Black
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
African Immigrants ◽  
Sun Exposure ◽  
Prevalence Ratio ◽  
Ultraviolet B ◽  
Dietary Vitamin ◽  
Public Health Issue ◽  
Activity Levels ◽  
Australian Health

Vitamin D deficiency (serum 25-hydroxyvitamin D (25(OH)D) concentrations <50 nmol/L) is a public health issue in Australia and internationally. Those with darker skin require a greater dose of ultraviolet B radiation from sunlight than those with paler skin to synthesise adequate amounts of vitamin D. Using data from the 2011–2013 Australian Health Survey, we investigated the prevalence and predictors of vitamin D deficiency in African immigrants aged ≥18 years living in Australia (n = 236). Serum 25(OH)D was measured using a liquid chromatography–tandem mass spectrometry method that is certified to international reference measurement procedures. Poisson regression was used to investigate independent predictors of vitamin D deficiency. A total of 36% of adults were vitamin D deficient (35% of men, 37% of women). The prevalence ratio (PR) of vitamin D deficiency decreased by 2% per year of age (PR 0.98; 95% CI (0.97, 0.99); p = 0.004) and was 1.6 times higher in those with low/sedentary, compared to moderate/high, physical activity levels (PR 1.64; 95% CI (1.12, 2.39); p = 0.011). The greatest risk was for those assessed during winter/spring compared with summer/autumn (PR 1.89; 95% CI (1.33, 2.64); p < 0.001). Culturally appropriate messaging on safe sun exposure and dietary vitamin D is warranted in order to promote vitamin D sufficiency in African immigrants living in Australia.

scholarly journals Prevalence and correlates of vitamin D deficiency in a tropical setting: results from a nationally representative survey

2020 ◽  
Vol 112 (4) ◽  
pp. 1088-1098 ◽  
Author(s):  
Rachael J Beer ◽  
Oscar F Herrán ◽  
Eduardo Villamor
Keyword(s):  
Vitamin D ◽  
Pregnant Women ◽  
Vitamin D Deficiency ◽  
Maternal Education ◽  
Strong Predictor ◽  
Age Groups ◽  
Sun Exposure ◽  
Household Wealth ◽  
Nutrition Survey ◽  
Nationally Representative

ABSTRACT Background The prevalence of vitamin D deficiency (VDD) may be high in countries with abundant sun exposure year-round, but nationally representative data are lacking. Objective We examined the prevalence and distribution of VDD by individual and environmental characteristics in a nationally representative sample of Colombian children, pregnant women, and adult nonpregnant women. Methods Using the 2015 Colombian National Nutrition Survey, we defined VDD and low vitamin D (LVD) as serum 25-hydroxyvitamin D [25(OH)D] &lt;30 nmol/L and &lt;50 nmol/L, respectively, in 31,841 children aged 1 to &lt;18 y, 1262 pregnant women, and 7170 nonpregnant women aged 18–49 y. Within each group, we compared VDD and LVD prevalence by levels of sociodemographic, anthropometric, and geographic factors using adjusted prevalence ratios with 95% CIs from multivariable Poisson regression. Results The mean ± SE 25(OH)D was 65.1 ± 0.4 nmol/L. The prevalence ± SE of VDD and LVD was 3.1% ± 0.3% and 23.9% ± 0.8%, respectively. Pregnant women had the highest VDD prevalence at 6.7% ± 1.5%, whereas toddlers had the highest prevalence of LVD at 42.5% ± 1.8%. Altitude was one of the strongest correlates of VDD and LVD, with every 100 m above sea level related to a 4% increase in LVD prevalence (P &lt;0.0001). Among children, VDD was positively associated with BMI-for-age Z &gt;1 and maternal education. Among pregnant women, VDD was positively related to education. Among adult nonpregnant women, VDD was associated with BMI and household wealth. Conclusion The prevalence of VDD and LVD in Colombian women and children is nonnegligible; some age groups are disproportionately affected. Altitude was a strong predictor of vitamin D status in this tropical setting. VDD was positively related to indicators of higher socioeconomic status.

Hospitalisations for falls and hip fractures attributable to vitamin D deficiency in older Australians

2021 ◽  
pp. 1-13
Author(s):  
Rachel E Neale ◽  
Louise F Wilson ◽  
Lucinda J Black ◽  
Mary Waterhouse ◽  
Robyn M Lucas ◽  
...  
Keyword(s):  
Vitamin D ◽  
Hip Fracture ◽  
Vitamin D Deficiency ◽  
Hip Fractures ◽  
Sun Exposure ◽  
Australian Health ◽  
Relative Risks ◽  
Increased Risk ◽  
Risk Of Falls ◽  
The Impact

ABSTRACT Vitamin D deficiency is associated with increased risk of falls and fractures. Assuming this association is causal, we aimed to identify the number and proportion of hospitalisations for falls and hip fractures attributable to vitamin D deficiency [25 hydroxy D (25(OH)D) <50 nmol/L] in Australians aged 65 years and over. We used 25(OH)D data from the 2011/12 Australian Health Survey and relative risks from published meta-analyses to calculate population attributable fractions for falls and hip fracture. We applied these to data published by the Australian Institute of Health and Welfare to calculate the number of events each year attributable to vitamin D deficiency. In men and women combined, 8.3% of hospitalisations for falls (7991 events) and almost 8% of hospitalisations for hip fractures (1315 events) were attributable to vitamin D deficiency. These findings suggest that even in a sunny country such as Australia vitamin D deficiency contributes to a considerable number of hospitalisations as a consequence of falls and for treatment of hip fracture in older Australians; in countries where the prevalence of vitamin D deficiency is higher the impact will be even greater. It is important to mitigate vitamin D deficiency but whether this should occur through supplementation or increased sun exposure needs consideration of the benefits, harms, practicalities, and costs of both approaches.

Vitamin D Deficiency in Patients with Acute Myocardial Infarction: An Italian Single-Center Study

2015 ◽  
Vol 85 (1-2) ◽  
pp. 23-30 ◽  
Author(s):  
Aneta Aleksova ◽  
Rita Belfiore ◽  
Cosimo Carriere ◽  
Salam Kassem ◽  
Salvatore La Carrubba ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Primary Source ◽  
Sun Exposure ◽  
Female Gender ◽  
Developed Countries ◽  
Vitamin D Status ◽  
High Exposure

Abstract. Background: Hypovitaminosis D is a vitamin deficiency that has been increasing in developed countries; it was also suggested as an emerging risk factor for developing of atherosclerosis and acute myocardial infarction. The primary source of vitamin D is its cutaneous synthesis under exposure to sunlight. It has been suggested that 30 min of sun exposure twice weekly leads to sufficient vitamin D synthesis. The residents of Trieste (Italy) are well-known for their high exposure to sunlight in all seasons. We aimed to investigate the vitamin D status in subjects with acute myocardial infarction living in this area. Methods: Vitamin D status was identified in 478 subjects diagnosed with acute myocardial infarction. Results: The median serum 25-hydroxyvitamin D concentration was 14.5 [7.8 - 22.7] ng/mL. Vitamin D deficiency and insufficiency were present in 324 (68 %) and 107 (22 %) subjects, respectively. Vitamin D deficiency was less frequent among subjects enrolled in the period from July to the end of September (p < 0.001). In a multivariate analysis vitamin D deficiency was predicted by older age (p = 0.02), female gender (p = 0.002), higher body mass index (p = 0.05), autumn/winter sampling (p < 0.001), increased parathyroid hormone (p = 0.03) and alkaline phosphatase (p = 0.003). Conclusions: We observed very high prevalence of vitamin D deficiency among subjects with myocardial infarction in all seasons of enrollment. However, it was lower in the summer when sun exposure is higher. The exposure to sunlight may be a cost-saving therapeutic strategy for the management of vitamin D deficiency.

The Prevalence of Vitamin D Deficiency in Iran: A Literature Review

2020 ◽  
Vol 16 (7) ◽  
pp. 1015-1027
Author(s):  
Mohammad Bagherniya ◽  
Zahra Khorasanchi ◽  
Mina S. Bidokhti ◽  
Gordon A. Ferns ◽  
Mitra Rezaei ◽  
...  
Keyword(s):  
Vitamin D ◽  
Literature Review ◽  
Vitamin D Deficiency ◽  
Medical Condition ◽  
Scientific Information ◽  
Age Groups ◽  
Public Health Problem ◽  
Major Public Health Problem ◽  
Vitamin D Levels ◽  
High Prevalence

Background: Vitamin D deficiency is a common medical condition worldwide. In Iran, it has been reported that between 30-90% of people have vitamin D deficiency. However, its distribution in different parts of the country and among different age and regional groups is unclear. Therefore, the aim of this study was to review the recent literature on vitamin D deficiency in Iran. Methods: The literature review was performed using Web of Science, PubMed-Medline, Scopus and Scientific Information Database (SID) with a cut-off date of November 2016 to identify articles on vitamin D status in Iran published in the last 10 years. Studies in English and Persian that reported vitamin D levels in male and female subjects of all age groups and in healthy populations were included. Results: From 325 studies that were initially retrieved, 82 articles met the inclusion criteria. A high prevalence of vitamin D deficiency was reported, and in some regions, this was reported as >90% and was found in all age groups and in all regions of Iran. Conclusion: This review highlights the very high prevalence of vitamin D deficiency in Iran. It will be important to recognize the importance of vitamin D deficiency as a major public health problem in Iran.

scholarly journals Knowledge and attitudes towards vitamin D food fortification

2019 ◽  
Vol 49 (3) ◽  
pp. 346-358 ◽  
Author(s):  
Beth Clark ◽  
Julie Doyle ◽  
Owen Bull ◽  
Sophie McClean ◽  
Tom Hill
Keyword(s):  
Public Health ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
South Asians ◽  
Middle Eastern ◽  
Sun Exposure ◽  
Food Fortification ◽  
Pilot Studies ◽  
Content Type ◽  
Far Eastern

Purpose Vitamin D deficiency is a well-recognised public health problem within the UK, with specific population groups more vulnerable to deficiency. Two pilot studies were used to explore awareness of vitamin D deficiency and attitudes towards food fortification. Design/methodology/approach A survey of 120 participants from five at-risk groups (South Asians, Blacks, Middle Eastern, Far Eastern and Caucasian older adults over 65 years) plus a group of British Caucasians who do not avoid sun exposure explored awareness of vitamin D, sun exposure knowledge and behaviour and attitudes towards food fortification. The latter group was included to provide a comparison group who were at a reduced risk of deficiency. χ2 was used to test associations between categorical variables and the study groups. The second study used three focus groups and two interviews, conducted on young South Asian females and examined knowledge and awareness of vitamin D and vitamin D-fortified foods. Findings A lack of knowledge and misconceptions were highlighted by both studies in relation to at-risk factors, including sunlight exposure (p = 0.037), dietary intakes (p = 0.0174) and darker skin pigmentation (p = 0.023), sources of vitamin D and the health benefits associated with optimal consumption. Attitudes to mandatory fortification of some foods varied significantly (p = 0.004) between the groups with acceptance rates for Blacks (68 per cent), those over 65 years (50 per cent), Middle Eastern (67 per cent) and Far Eastern (73 per cent), whereas the control (71 per cent) showed no acceptance, and South Asians gave a mixed response (48 per cent No). Focus group findings highlighted positive views towards fortification, although this was less for mandatory as opposed to voluntary fortification. Both pilot studies highlight the need for more research into this area, to create more effective public health policies. Originality/value The research presents novel insights into a topical area where there is limited research.

scholarly journals Seasonal Variation in Vitamin D in Association with Age, Inflammatory Cytokines, Anthropometric Parameters, and Lifestyle Factors in Older Adults

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Leticia Elizondo-Montemayor ◽  
Elena C. Castillo ◽  
Carlos Rodríguez-López ◽  
José R. Villarreal-Calderón ◽  
Merit Gómez-Carmona ◽  
...  
Keyword(s):  
Older Adults ◽  
Vitamin D ◽  
Seasonal Variation ◽  
Vitamin D Deficiency ◽  
High Probability ◽  
Sun Exposure ◽  
Serum Levels ◽  
Lifestyle Factors ◽  
Anthropometric Parameters ◽  
Healthy Older Adults

Vitamin D deficiency is present even in sunny regions. Ageing decreases pre-vitamin D production in the skin and is associated with altered cytokine profile. We performed a multivariate analysis considering lifestyle factors, anthropometric, and inflammatory markers according to seasonal variation in Mexican healthy older adults. The same cohort was followed during 12 months. Vitamin D deficiency/insufficiency was found in 91.3% of the subjects despite living in appropriate latitude (25°40′0″N). 25(OH)D levels remained below <30 ng/mL through all seasons. Vitamin D deficiency did not correlate to sun exposure or dietary intake. Gender was the strongest associated factor, explaining a variance of 20%. Waist circumference (WC) greater than 88 cm was a risk factor for vitamin D deficiency. Age (>74 years) combined with WC (>88 cm) and BMI (>32.7) showed a high probability (90%) of vitamin D deficiency. Remarkably, an increase in one centimeter in WC decreased 25(OH)D by 0.176 ng/mL, while an increase in one point BMI decreased 25(OH)D by 0.534 ng/mL. A cutoff point of 74 years of age determined probability of vitamin D hipovitaminosis. Vitamin D deficiency was correlated with TNF-αserum levels, possibly increasing the susceptibility of older adults to a proinflammatory state and its related diseases.

scholarly journals Vitamin D and COVID-19 infection; recent findings

2021 ◽  
Vol 7 (1) ◽  
pp. e19-e19
Author(s):  
Alireza Pouramini ◽  
Fatemeh Kafi ◽  
Shakiba Hassanzadeh
Keyword(s):  
Public Health ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Chronic Conditions ◽  
Public Health Problem ◽  
Global Public Health ◽  
Exact Role ◽  
Risk Of Death ◽  
Global Public Health Problem

COVID-19 infection increases the risk of death in patients with chronic conditions such as diabetes or obesity. The exact role of vitamin D in COVID-19 infection is unknown and controversial. Furthermore, the exact prevalence of vitamin D deficiency is still unknown but it affects individuals worldwide regardless of ethnicity and age. Herein, we give an overview of vitamin D deficiency as a global public health problem, the role of vitamin D in COVID-19 infection, and the proper approach to treating vitamin D deficiency.

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