Socio-economic determinants of vitamin D deficiency in the older Polish population: results from the PolSenior study

Wyskida, Magdalena; Owczarek, Aleksander; Szybalska, Aleksandra; Brzozowska, Aniceta; Szczerbowska, Irena; Wieczorowska‐Tobis, Katarzyna; Puzianowska-Kuźnicka, Monika; Franek, Edward; Mossakowska, Małgorzata; Grodzicki, Tomasz; Wiȩcek, Andrzej; Olszanecka-Glinianowicz, Magdalena; Chudek, Jerzy

doi:10.1017/s1368980017003901

Cited by 10 publications

(6 citation statements)

References 31 publications

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“…This study found that there was a significant difference of education level between vitamin D deficiency group and insufficient-normal group. Lower educational level has been associated with vitamin D deficiency in Saudi Arabia and Poland [28, 29]. Similar observation was found in this study since more than half of the participants (116 women, 56.86%) had education level of middle school or lower.…”

Section: Discussionsupporting

confidence: 88%

Optimizing ultraviolet B radiation exposure to prevent vitamin D deficiency among pregnant women in the tropical zone: report from cohort study on vitamin D status and its impact during pregnancy in Indonesia

Judistiani

Nirmala

Rahmawati

et al. 2019

BMC Pregnancy Childbirth

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Background Vitamin D deficiency during pregnancy carries potential threat to fetal well being. Natural conversion of vitamin D in the skin can be facilitated by direct ultra violet B (UVB) radiation, but the effect is reduced by wearing umbrellas, clothes, or sunblock cream. Muslim women wear hijab that allows only face and hands to be seen. With increasing proportion of muslim women wearing hijab and the lack of vitamin D fortification and fish consumption in Indonesia, it poses a problem for vitamin D deficiency among pregnant women. This study aimed at finding the best timing of UVB exposure and the duration of exposure which can be suggested to prevent vitamin D deficiency among pregnant women, for those wearing hijab or not. Methods This study recruited 304 pregnant women in the first trimester, 75–76 women from 4 cities of the most populated province, West Java, Indonesia which represented 70–80% percent of pregnancy per year. A 3-day notes on duration, time and type of outdoor activity and the clothing wore by the women were collected. UVB intensity radiation were obtained. Calculation on body surface area exposed to direct UVB radiation and UVB radiation intensity were done. Measurement of vitamin D level in sera were done on the same week. Results The median of maternal sera vitamin D level was 13.6 ng/mL and the mean exposed area was around 0.48 m2 or 18.59% of total body surface area. Radiation intensity reached its peak around 10.00 and 13.00, but the mean duration of exposure to UVB during this window was lower than expected. Significant correlation was found between maternal sera vitamin D level and exposed body surface area (r = 0.36, p < 0.002) or percentage of exposed body surface (r = 0.39, p < 0.001) and radiation intensity (r = 0.15, p = 0.029). Further analysis showed that duration of exposure to UVB should be longer for pregnant women wearing hijab as compared to women without hijab. Conclusion This study suggested that the best timing to get UVB exposure was between 10.00–13.00, with longer duration for women wearing hijab (64.5 vs 37.5 min) of continuous exposure per day. Electronic supplementary material The online version of this article (10.1186/s12884-019-2306-7) contains supplementary material, which is available to authorized users.

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Section: Discussionsupporting

confidence: 88%

Optimizing ultraviolet B radiation exposure to prevent vitamin D deficiency among pregnant women in the tropical zone: report from cohort study on vitamin D status and its impact during pregnancy in Indonesia

Judistiani

Nirmala

Rahmawati

et al. 2019

BMC Pregnancy Childbirth

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“…In line with the present study, there are reports in the literature mentioning that the serum 25-OH Vitamin D levels vary considerably among seasons, peak 30-60 days following the exposure to sunlight in summer months and drop to the lowest level toward the end of winter months (1,20). In a study by Wyskida et al, sufficient vitamin levels were most frequent in August in both men and women, while the lowest values were observed in women in January and in men in March (21). Results of the present study are similar to the results of the study by Gonzalez Molero et al, conducted in Spain to examine seasonal variations in the 25-OH Vitamin D levels (9).…”

Section: Discussionsupporting

confidence: 46%

Relation of Vitamin D Status with Season, Living Place, Age Gender and Chronic Disease

Okan¹

2020

Erciyes Med J

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The aim of the present study was to investigate the variations in 25-OH Vitamin D levels considering age, gender, the place of living, season, and presence of chronic disease. Materials and Methods: Individuals whose 25-OH Vitamin D levels were measured in seven state hospitals in the Tokat Province, Turkey, between September 2016 and August 2017 were selected using the hospital information system and included in this retrospective study. Results: The study included a total of 22,044 individuals aged ≥18 years. Vitamin D deficiency and insufficiency were observed in 89.4% of the individuals surveyed. Of all participants, 78.7% (n=17.328) were female, and 74.3% (n=16.377) were living in urban areas. An average 25-OH Vitamin D level was significantly low in people living in urban areas (15±12.4 ng/ml) compared to those living in rural areas (15.4±11.5 ng/ml; p=0.03). An average seasonal 25-OH Vitamin D level was the lowest in the winter (13.4±11.5 ng/ml) and the highest in the summer season (17±12.1 ng/ml; p<0.001). An average 25-OH Vitamin D level was 15.1±12.2 ng/ml, which was significantly higher in men (17.6±9.9 ng/ml) than in women (14.4±12.6 ng/ml) (p<0.001). The average 25-OH Vitamin D level of subjects who did not have a chronic disease was significantly lower than in those who had only hypertension, heart disease, or multiple sclerosis (14.40±11.73, 15.67±12.72, 17.42±13.13, and 19.50±14.88, respectively; p<0.005). Conclusion: It was found that Vitamin D deficiency was associated with the place of living, age, gender, and season of the year. An average 25-OH Vitamin D level was significantly higher in individuals with hypertension, heart disease, and multiple sclerosis.

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“…The group consisted of 480 subjects drawn from a population-based community dwelling cohort of older subjects (PolSenior study [12]) without a history of cancer, matched according to sex, age (73 ± 6 years), occurrence of diabetes (34.8%), and hypertension (81.4%).…”

Section: Methodsmentioning

confidence: 99%

Severity of Vitamin D Deficiency Predicts Mortality in Ischemic Stroke Patients

Wajda¹,

Świat

Owczarek

et al. 2019

Disease Markers

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Background. Vitamin D (VD) deficiency is considered an independent risk factor for death due to cardiovascular events including ischemic stroke (IS). We assessed the hypothesis that decreased levels of 25-hydroxyvitamin D (25-OH-D) are associated with increased risk of mortality in patients with IS. Methods. Serum 25-OH-D, intact parathyroid hormone (iPTH), and intact fibroblast growth factor 23 (iFGF23) levels were assessed in serum of 240 consecutive patients admitted within the 24 hours after the onset of IS. Mortality data was obtained from the local registry office. Results. Only three subjects (1.3%) had an optimal 25-OH-D level (30-80 ng/mL), 25 (10.4%) had a mildly reduced (insufficient) level, 61 (25.4%) had moderate deficiency, and 151 (62.9%) had a severe VD deficiency. 20% subjects had secondary hyperparathyroidism. The serum 25-OH-D level was significantly lower than that in 480 matched subjects (9.9±7.1 vs. 21.0±8.7 ng/mL). Of all the patients, 79 (32.9%) died during follow-up observation (44.9 months). The mortality rates (per year) were 4.81 and 1.89 in a group with and without severe VD deficiency, respectively (incidence rate ratio: 2.52; 95% CI: 1.44–4.68). There was no effect of secondary hyperparathyroidism and iFGF23 levels on mortality rates. Age, 25−OH−D<10 ng/mL, and functional status (modified Rankin scale) were significant factors increasing the risk of death in multivariable Cox proportional hazard regression test. Conclusions. Severe VD deficiency is an emerging, strong negative predictor for survival after IS, independent of age and functional status. VD supplementation in IS survivals may be considered due to high prevalence of its deficiency. However, it is uncertain whether it will improve their survival.

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Socio-economic determinants of vitamin D deficiency in the older Polish population: results from the PolSenior study

Abstract: Vitamin D deficiency/insufficiency is frequent in the older Polish population and associated with functional disability and impaired mobility of seniors.

Cited by 10 publications

References 31 publications

Optimizing ultraviolet B radiation exposure to prevent vitamin D deficiency among pregnant women in the tropical zone: report from cohort study on vitamin D status and its impact during pregnancy in Indonesia

Optimizing ultraviolet B radiation exposure to prevent vitamin D deficiency among pregnant women in the tropical zone: report from cohort study on vitamin D status and its impact during pregnancy in Indonesia

Relation of Vitamin D Status with Season, Living Place, Age Gender and Chronic Disease

Severity of Vitamin D Deficiency Predicts Mortality in Ischemic Stroke Patients

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