Underlying Hemato-oncologic, Gastrointestinal-nutritional Diseases, or Prematurity May Be Risk Factors for Hypovitaminosi D in Children.
	    		
		   		
	    	
    	
    	
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Byung Wook JO
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Nani JUNG
			        		
			        		;
		        		
		        		
		        		
			        		Ye Jee SHIM
			        		
			        		;
		        		
		        		
		        		
			        		Jin Hyeok CHOI
			        		
			        		;
		        		
		        		
		        		
			        		Heung Sik KIM
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Pediatrics, Keimyung University School of Medicine, Daegu, Korea. kimhs@dsmc.or.kr
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Cancer;
			        		
			        		
			        		
				        		Children;
			        		
			        		
			        		
				        		Malabsorption;
			        		
			        		
			        		
				        		Prematurity;
			        		
			        		
			        		
				        		Vitamin D
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Alkaline Phosphatase;
				        		
			        		
				        		
					        		Calcifediol;
				        		
			        		
				        		
					        		Calcium;
				        		
			        		
				        		
					        		Child*;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Hypocalcemia;
				        		
			        		
				        		
					        		Infant, Low Birth Weight;
				        		
			        		
				        		
					        		Infant, Newborn;
				        		
			        		
				        		
					        		Medical Records;
				        		
			        		
				        		
					        		Parathyroid Hormone;
				        		
			        		
				        		
					        		Risk Factors*;
				        		
			        		
				        		
					        		Vitamin D
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Keimyung Medical Journal
	            		
	            		 2015;34(2):89-97
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	PURPOSE: An adequate vitamin D level is important for normal growth, cancer prevention, controlling hormones, and immune regulation. However, no study has investigated vitamin D status in patients with serious illnesses, such as malignancies, malabsorption diseases, or prematurity in Korean children. Thus, we analyzed the results of 25-hydroxyvitamin D3 (25-D) levels in children in a single tertiary medical center. METHODS: Children who had their vitamin D level evaluated at Keimyung University Dongsan Medical Center from January 2004 to December 2014 were included. We reviewed the medical records and laboratory test results. RESULTS: Ninety-three children (male:female = 48:45) who had their vitamin D levels measured were included. The most common reason for measuring vitamin D level was hypocalcemia with or without neurological signs. Among the subjects, 61 children had hypovitaminosis D (25-D < 30 ng/mL). A positive correlation was detected between 25-D and total calcium levels (p = 0.001). Negative correlations were found between 25-D and immunoreactive parathyroid hormone (iPTH) levels (p = 0.002) and between 25-D and alkaline phosphatase (ALP) levels (p = 0.021). Twenty-three subjects (37.7%) had a critical underlying condition, including a hemato-oncologic issue (18.0%), gastrointestinal or nutritional problem (11.5%), and prematurity or low birth weight (8.2%). CONCLUSION: The levels of total calcium, ALP, and iPTH were correlated with 25-D level. An underlying malignancy, malabsorption issues, or prematurity may be risk factors for hypovitaminosis D in children.