“Our aims were to compare the vitamin D status of children with and without cancer and to examine the possible correlation between vitamin D levels in children with cancer before initiating treatment and prognosis.”
“We compared the data of 173 children with cancer with those of 569 children without cancer.”

“We measured a significant difference between the vitamin D levels of children with cancer before treatment and children without cancer.”
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“There was a significant correlation between the initial vitamin D levels of children with cancer and the prognosis…..”
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“The average vitamin D level was 19.76% lower in the population with cancer compared with the average of the control group, and we found a correlation between the lower vitamin D levels in children with cancer and the adverse prognosis.”
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“We suggest that supplying vitamin D is reasonable and a prospective study of vitamin D in pediatric patients with cancer is recommended.”
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O. Juhasz, et al
Examining the Vitamin D Status of Children With Solid Tumors
Journal Of The American College Of Nutrition — Volume 39 #2 — 2020 — page 128