Vitamin D status and healthy Egyptian adolescents

Sherief, Laila M.; Ali, Adel; Gaballa, Ahmed; Abdellatif, Ghada Mohammed; Kamal, Naglaa M.; Afify, Mona; Abdelmalek, Diana H.; El-Emari, Sameh A.; Soliman, Ahmed; Mokhtar, Wesam A.

doi:10.1097/md.0000000000026661

Cited by 13 publications

(11 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, the majority of participants (91.2%) were deficient in vitamin D. Similar findings were reported by Sherief and colleagues [ 17 ], who found 94.8% of Egyptian adolescents had vitamin D deficiency. A significant level of vitamin D deficiency was found among boys (96.2%), while 88.3% of girls were deficient.…”

Section: Discussionsupporting

confidence: 91%

“…Thus, the low levels of magnesium results in low serum levels of vitamin D [ 14 ]. In the Middle East, many studies have been carried out to estimate the prevalence of vitamin D deficiency and its risk factors among children and adolescents [ 15 , 16 , 17 ] and only one study conducted among Bahraini children and adolescents [ 3 ]. Therefore, vitamin D status in children and adolescents should be excessively investigated due to the impact of vitamin D on their growth and development as well as prevention of other short- and long-term negative clinical consequences associated with vitamin D deficiency such as rickets, hypertension, cardiovascular diseases, chronic musculoskeletal pain and various cancers [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prevalence and Risk Factors for Vitamin D Deficiency in Children and Adolescents in the Kingdom of Bahrain

et al. 2023

View full text Add to dashboard Cite

Background: Vitamin D deficiency has reached pandemic levels in the Middle East and North Africa (MENA) region, even though sunshine is abundant all year round for the cutaneous synthesis of vitamin D through the skin. This study aimed to determine the prevalence of vitamin D deficiency and risk factors associated with serum 25-hydroxy vitamin D (25(OH)D) in children and adolescents aged from 10 to 19 years, as well as the possible associations of vitamin D with calcium, magnesium and phosphate levels. Methods: A multi-center, cross-sectional study was conducted between May and August 2019 at the Ministry of Health in the Kingdom of Bahrain. A total of 383 boys and girls were selected from five health centers from five different regions in the Kingdom of Bahrain. Information about sex, age, education level, weight, height, degree of sunlight exposure, and physical activity levels was recorded. A blood sample was taken from each participant to test serum levels of 25(OH)D, calcium, magnesium and phosphate. Results: The results revealed that 92.1% of the participants were deficient in vitamin D. A significantly higher percentage of boys (96.2%) were vitamin D deficient (<20 ng/mL) than girls (88.3%) (p value = 0.004). Vitamin D deficiency were more prevalent among overweight (96.8%) and obese (96.2%) participants than normal body weight and wasted participants (p value < 0.001). Being male, overweight, or obese was significantly positively associated with a risk of vitamin D deficiency. Vitamin D deficiency was significantly associated with low serum levels of magnesium. No significant associations were detected between vitamin D deficiency and calcium and phosphate serum levels. However, vitamin D deficiency was significantly associated with low serum level of magnesium (p value = 0.017). Conclusions: Our study revealed that vitamin D deficiency was more prevalent among overweight and obese adolescents and mostly boys rather than girls. Magnesium and phosphate were lower in adolescents and children with lower serum 25(OH)D, showing a clear association between these biomarkers and the 25(OH)D.

show abstract

Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Prevalence and Risk Factors for Vitamin D Deficiency in Children and Adolescents in the Kingdom of Bahrain

et al. 2023

View full text Add to dashboard Cite

show abstract

“…While Sherief et al (20) found that all girls had VDD, 88% of boys had VDD, 8.8% had VDI, and 2.2% had VDS, the frequency of VDD was higher in females than in boys. A study conducted in Bahrain also revealed that girls had considerably lower mean 25(OH)D levels than boys and had a greater frequency of vitamin D insufficiency (21) .…”

Section: Discussionmentioning

confidence: 88%

Changes in Vitamin D Level After Sun Exposure in Egyptian School Children

El Moataz,

Ganeb,

El Tanawy

et al. 2023

The Egyptian Journal of Hospital Medicine

View full text Add to dashboard Cite

Background: Vitamin D is a fat-soluble vitamin found in blood, muscle, liver, fat, and other tissues. The regulation of calcium phosphorus balance and bone health are two of vitamin D's main roles. However, studies on both humans and animals suggest that vitamin D may play a part in the emergence of a number of endocrine disorders. Objective: The aim of the current work was to determine the baseline state of 25-hydroxyvitamin D levels in a sample of Egyptian schoolchildren and to assess how sun exposure affects vitamin D status. Subjects and methods: This cross-sectional study included a total of 50 apparently healthy schoolchildren, aged from 6 to 11 years, and performed at swimming pool center, in Benha, Egypt, between May 2018 and the end of September 2018 Vitamin D was measured twice, the first time in May, and the second time in September with good exposure to the sun three times/per week one hour before swimming. Results: Pre exposure mean vitamin D level was 26.9, while it was 27.1 after exposure, with no statistically significant difference between pre and post exposure levels. Vitamin D was sufficient in 40%, insufficient in 44%, deficient in 16%. No change was found in vitamin D status post exposure. Pre and post exposure vitamin D levels showed significant positive correlation with total calcium, ionized calcium, and significant negative correlation with body mass index (BMI). Darker skin, fast food, higher centile, BMI, formula feeding, lower sun exposure, activity level, total, ionized calcium was associated with risk of lower vitamin D status. Conclusion: It could be concluded that vitamin D deficiency and insufficiency are highly prevalent in sunny Egypt. To increase vitamin D status and reduce the risk of its deficiency, vitamin D supplementation, consumption of vitamin Drich food, and the encouraging of outdoor activities should be considered. Our findings indicate that, despite receiving a lot of sun exposure, some children exhibit varied responses to ultraviolet Blight (UVB) light, which results in poor vitamin D status.

show abstract

“…Vitamin D insufficiency and deficiency were found more common among Turkish adolescent girls, particularly those wearing concealing clothing [28]. In Sherief et al study among healthy Egyptian adolescents, all females were wearing hijabs and all had vitamin D deficiency [8,14].…”

Section: Discussionmentioning

confidence: 96%

Vitamin D Levels in Children During Winter and the Relationship Between Sunscreen and Sun Protection Behaviors

Tuğrul¹,

Demirdağ

Şahin

2023

Dermatol Pract Concept

View full text Add to dashboard Cite

Introduction: Sunlight is the major source of vitamin D, thus, the use of sunscreens could result in vitamin D insufficiency or deficiency. Objective: We aimed to assess serum vitamin D levels in healthy children aged 0-18 years in the winter and determine the association between sunscreen use and sun protection behaviors on vitamin D status. Methods: The demographic data, clothing style, skin type, history of sunburn, history of visiting seaside towns in summer, sun protection behaviors including sunscreen use, wearing sunglasses and hats, and further detailed information about sunscreen use were recorded. Vitamin D status was assessed by measuring blood levels of 25(OH)D during winter. Results: Three hundred seventy-six children (172 boys and 204 girls) with a mean age of 128.38±56.39 months were enrolled. The mean serum level of 25(OH)D was 15.32±8.64 ng/mL. The mean values of vitamin D were associated with age, sex, traditional clothing style, having a sunburn history, and sunscreen use (p<0.05). Adolescents and girls had vitamin D deficiency and inadequacy more than younger children and boys (p<0.05). Sunscreen use in the adequacy group was lower than in the inadequacy and deficiency groups (p=0.001). There was no significant difference between vitamin D status according to the sunscreen details (SPF, product source, season, and body areas) (p>0.05). Conclusions: Sunscreen use appears to reduce vitamin D levels measured in winter. Children, especially girls and adolescents, should be exposed to sufficient sunlight to maintain normal serum vitamin D levels. Vitamin D supplementation should be given to children, especially during winter.

show abstract

Vitamin D status and healthy Egyptian adolescents

Cited by 13 publications

References 45 publications

Prevalence and Risk Factors for Vitamin D Deficiency in Children and Adolescents in the Kingdom of Bahrain

Prevalence and Risk Factors for Vitamin D Deficiency in Children and Adolescents in the Kingdom of Bahrain

Changes in Vitamin D Level After Sun Exposure in Egyptian School Children

Vitamin D Levels in Children During Winter and the Relationship Between Sunscreen and Sun Protection Behaviors

Contact Info

Product

Resources

About