Özet:

Purpose: Vitamin D is a hormone synthesized in the skin under sunlight. Disability and insufficiency is a universal problem that affects children. It is necessary for healthy growth and development. There are many regulatory roles that affect the system. The relationship with the parathormone is important in determining the limit value of deficiency. The aim of this article is to determine the frequency of vitamin D deficiency in children who apply to our hospital, taking into account the limits set for our country in the recent past. Method: The records of children who participated in the study and have no known chronic health problems were scaned retrospectively through the hospital information system. Age, gender, parathormone (PTH), calcium (Ca), phosphorus (P), alkaline phosfatase (ALP), 25(OH)D levels were recorded. The age groups, gender, seasons were analyzed and presented with the statistical package program. Results: 229 (45,6) men, 273 (54,4) girls and 502 healthy children from 1 to 17 years of age participated in the study. Having taken into account the recommendations of the experts, the ratio of vitamin D deficiency (25 (OH)D <12 ng/ml) was 26.7 %(n=134). 47.2 percent of participants were “qualificated”. The result is that, although our country is located in the mild climate of the Northern Hemisphere, more than 50% of the healthy children who apply to our hospital have vitamin D deficiency or deficiency. Increased exposure to the sun is necessary in the solution of this problem with the application of support treatments. The vitamin D support program, implemented in the first year of life and carried out by family health centers, has achieved successful results in this age group. It is believed that a similar application will be useful for other age groups. Abstract Objective: Vitamin D is a hormone, synthesized in the skin under the direct sunlight. Vitamin D deficiency is a significant global problem in children. It is necessary for well growing up and development. It acts as a regulator in many systems. Its relationship with parathormone is important to detect the cut off value of deficiency. The aim of this article is to determine the prevalence of vitamin D deficiency in children in our province by considering the recently established threshold values for our country. Methods: The records of children who were known to have no chronic disease, were retrospectively reviewed through the hospital information system. Age, sex, parathormone (PTH), calcium (Ca), phosphorus (P), alkaline phosphatase (ALP), 25(OH)D levels were recorded. The data were analyzed and presented with statistical package program considering age, gender and seasons. Results: Five hundred and two children aged 1 to 17 years enrolled in the study. Considering recommendations of authorities, the rate of vitamin D deficiency was 26.7% (n = 134). Sufficiency was detected in the 47.2% of the participants. Conclusion: Although our city is located in the temperate zone of the Northern Hemisphere, more than 50% of the study population had vitamin D deficiency or insufficiency. Supplementation treatments and increasing sun exposure are necessary to solve this problem. The vitamin supplementation in the first year of life, has provided successful outcomes in this age group. A similar practice is thought to be beneficial for other age groups. Keywords: child health; vitamin D; deficiency; insufficiency

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