scholarly journals The Association between the Risk of Premenstrual Syndrome and Vitamin D, Calcium, and Magnesium Status among University Students: A Case Control Study

2015 ◽  
Vol 5 (3) ◽  
pp. 225-230 ◽  
Author(s):  
Afsaneh Saeedian Kia ◽  
Reza Amani ◽  
Bahman Cheraghian
Keyword(s):  
Vitamin D ◽  
University Students ◽  
Premenstrual Syndrome ◽  
Case Control Study ◽  
Case Control ◽  
Magnesium Status ◽  
Calcium And Magnesium ◽  
Control Study

Dietary and serum vitamin D and preeclampsia risk in Chinese pregnant women: a matched case–control study

2021 ◽  
pp. 1-26
Author(s):  
Xue-min Huang ◽  
Yan-hua Liu ◽  
Han Zhang ◽  
Yuan Cao ◽  
Wei-feng Dou ◽  
...  
Keyword(s):  
Vitamin D ◽  
Dietary Intake ◽  
Pregnant Women ◽  
Case Control Study ◽  
Serum Levels ◽  
Case Control ◽  
Serum Concentrations ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

Abstract The effect of vitamin D (VD) on the risk of preeclampsia (PE) is uncertain. Few of previous studies focused on the relationship between dietary VD intake and PE risk. Therefore, we conducted this 1:1 matched case-control study to explore the association of dietary VD intake and serum VD concentrations with PE risk in Chinese pregnant women. A total of 440 pairs of participants were recruited during March 2016 to June 2019. Dietary information was obtained using a 78-item semi-quantitative food frequency questionnaire. Serum concentrations of 25(OH)D2 and 25(OH)D3 were measured by liquid chromatography–tandem mass spectrometry. Multivariate conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs). Restricted cubic splines (RCS) were plotted to evaluate the dose-response relationship of dietary VD intake and serum VD concentrations with PE risk. Compared with the lowest quartile, the ORs of the highest quartile were 0.45 (95%CI: 0.29-0.71, Ptrend = 0.001) for VD dietary intake and 0.26 (95%CI: 0.11-0.60, Ptrend = 0.003) for serum levels after adjusting for confounders. In addition, the RCS analysis suggested a reverse J-shaped relationship between dietary VD intake and PE risk (P-nonlinearity = 0.02). A similar association was also found between serum concentrations of total 25(OH)D and PE risk (P-nonlinearity = 0.02). In conclusion, this study provides evidence that higher dietary intake and serum levels of VD are associated with the lower risk of PE in Chinese pregnant women.

scholarly journals Vitamin D Status and Its Role in First-Time and Recurrent Urinary Tract Infections in Children: A Case-Control Study

Children ◽  
2021 ◽  
Vol 8 (5) ◽  
pp. 419
Author(s):  
Carmen Muntean ◽  
Maria Săsăran
Keyword(s):  
Vitamin D ◽  
Urinary Tract ◽  
Case Control Study ◽  
Case Control ◽  
Study Group ◽  
Recurrent Utis ◽  
Vitamin D Levels ◽  
Tract Infections ◽  
First Time ◽  
Control Study

Vitamin D has emerged as a key factor in innate immunity. Its involvement in the pathogenesis of urinary tract infections (UTIs) has gained a lot of attention recently. The objective of this study is to investigate the association between serum 25-hydroxyvitamin D (25(OH)D) levels and first-time or recurrent UTIs in children. A prospective, case-control study was conducted on 101 pediatric patients, who were divided into two groups: 59 patients with UTIs and 42 age-matched healthy controls. Serum 25(OH)D was determined in each child and expressed in ng/mL. Vitamin D presented significantly lower values in study group subjects than in healthy controls (p < 0.01). Moreover, a significantly higher prevalence of vitamin D insufficiency and deficiency was found in children with UTIs (p < 0.01). Patients with recurrent UTIs presented significantly lower levels of vitamin D than those with first-time UTIs (p = 0.04). Urinary tract abnormalities did not seem to exercise an additional effect upon vitamin D levels within the study group. In conclusion, first-time and recurrent UTIs are associated with lower vitamin D levels. Further studies are necessary to validate our findings, as well as future longitudinal research regarding efficacy of vitamin D supplementation in children with UTIs.

scholarly journals Vitamin D Levels in Patients with and without Acne and Its Relation to Acne Severity: A Case-Control Study

2020 ◽  
Vol Volume 13 ◽  
pp. 759-765
Author(s):  
Ghadah Alhetheli ◽  
Ahmed Ibrahim Abd Elneam ◽  
Adel Alsenaid ◽  
Mohammed Al-Dhubaibi
Keyword(s):  
Vitamin D ◽  
Case Control Study ◽  
Case Control ◽  
Vitamin D Levels ◽  
Control Study

Dose–response association between vitamin D deficiency and atopic dermatitis in children, and effect modification by gender: a case-control study

2019 ◽  
pp. 1-6
Author(s):  
Amal Ahmed Mohamed ◽  
Eman Mohamed Salah Ahmed ◽  
Youssef M. K. Farag ◽  
Nermeen Ibrahim Bedair ◽  
Nourelhuda Ahmed Nassar ◽  
...  
Keyword(s):  
Vitamin D ◽  
Atopic Dermatitis ◽  
Vitamin D Deficiency ◽  
Dose Response ◽  
Case Control Study ◽  
Case Control ◽  
Effect Modification ◽  
Control Study

scholarly journals Vitamin D status and breast cancer in Saudi Arabian women: case-control study

2013 ◽  
Vol 98 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Fatimah M Yousef ◽  
Elizabeth T Jacobs ◽  
Paul T Kang ◽  
Iman A Hakim ◽  
Scott Going ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Vitamin D ◽  
Case Control Study ◽  
Saudi Arabian ◽  
Case Control ◽  
Vitamin D Status ◽  
Control Study
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