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Vitamin D status in paediatric patients with cancer
Akash Sinha1, Peter Avery, Steve Turner
1Department of Paediatric Endocrinology, Great North Children's Hospital, Newcastle upon Tyne, UK.
Insights
Children with cancer have lower vitamin D levels, with most being insufficient or deficient. Monitoring and supplementing vitamin D is crucial for these pediatric patients to mitigate health risks.
Area of Science:
- Pediatric Oncology
- Endocrinology
- Nutritional Science
Background:
- Children with cancer face higher risks of bone and cardiovascular diseases.
- Vitamin D status may play a role in these associated health risks.
- This study investigated vitamin D levels in children undergoing cancer treatment or surveillance.
Purpose of the Study:
- To assess vitamin D levels in children with a history of malignancy.
- To compare vitamin D status between pediatric cancer patients and healthy controls.
- To identify factors associated with vitamin D status in this population.
Main Methods:
- Cross-sectional study of 61 children with malignancy and 60 controls.
- Measured serum 25-hydroxyvitamin D (25-OH-D), parathormone, and bone biochemistry.
- Analyzed vitamin D status in relation to age, sex, ethnicity, sampling time, and malignancy history.
Main Results:
- Suboptimal vitamin D status (25-OH-D < 50 nmol/L) observed in 62% of cases.
- Vitamin D deficiency (25-OH-D < 25 nmol/L) was significantly more common in children with malignancy (21.3% vs. 3.3%).
- Poorer vitamin D status correlated with month of sampling, ethnicity, older age, and history of malignancy.
Conclusions:
- Survivors of childhood cancer exhibit lower vitamin D levels compared to controls.
- The majority of pediatric cancer patients have insufficient or deficient vitamin D.
- Vitamin D assessment and replacement therapy are recommended for children with a history of cancer.
Background:
Children with malignant disease are at increased risk of bone disorders and cardiovascular disease. Vitamin D status may influence this risk and so we assessed vitamin D levels in children with malignant disease undergoing active treatment or surveillance post-therapy.
Procedure:
This was an outpatient-based cross-sectional study of 61 children with a history of malignancy (median age 11.1 years; range 1.5-24.4 years) and 60 control subjects (median age 8.4 years; range 0.2-18.0 years) attending hospital for the management of non-malignant disorders. Serum vitamin D (25-OH-D), parathormone levels and bone biochemistry were determined. Vitamin D status and its relationship to age, sex, ethnicity, time of sampling and presence of malignant disease was determined.
Results:
Vitamin D status was suboptimal in 62% of cases (25-OH-D < 50 nmol/L [20 ng/ml]). Vitamin D deficiency (25-OH-D < 25 nmol/L [10 ng/ml]) was more common in children with malignant disease than controls (21.3% vs. 3.3%; P = 0.013). Month of sampling (P < 0.001), ethnicity (P < 0.001), older age (P = 0.011), and history of malignancy (P = 0.012) were associated with a poorer vitamin D status.
Conclusions:
Vitamin D levels [25-OH-D] are lower in survivors of childhood cancer in comparison to control children with the majority either insufficient or deficient. Assessment and adequate replacement of vitamin D status may be of particular value in this group of children.
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