Comparison of Second and Third Editions of the Bayley Scales in Children With Suspected Developmental Delay.
	    		
		   		
		   			
		   		
	    	
    	 
    	10.5535/arm.2018.42.2.313
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		You Gyoung YI
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		In Young SUNG
			        		
			        		;
		        		
		        		
		        		
			        		Jin Sook YUK
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Developmental Disabilities;
			        		
			        		
			        		
				        		BSID-II;
			        		
			        		
			        		
				        		Bayley-III
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Child Development;
				        		
			        		
				        		
					        		Child*;
				        		
			        		
				        		
					        		Developmental Disabilities;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		ROC Curve;
				        		
			        		
				        		
					        		Weights and Measures*
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Annals of Rehabilitation Medicine
	            		
	            		 2018;42(2):313-320
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	OBJECTIVE: To compare the scores of the Bayley Scales of Infant Development second edition (BSID-II) and the third edition, Bayley-III, in children with suspected developmental delay and to determine the cutoff score for developmental delay in the Bayley-III. METHODS: Children younger than 42 months (n=62) with suspected developmental delay who visited our department between 2014 and 2015 were assessed with both the BSID-II and Bayley-III tests. RESULTS: The mean Bayley-III Cognitive Language Composite (CLC) score was 5.8 points higher than the mean BSID-II Mental Developmental Index (MDI) score, and the mean Bayley-III Motor Composite (MC) score was 7.9 points higher than the mean BSID-II Psychomotor Developmental Index (PDI) score. In receiver operating characteristic (ROC) analysis of a BSID-II MDI score < 70, Bayley-III CLC scores showed a cutoff of 78.0 (96.6% sensitivity and 93.9% specificity). In ROC analysis of a BSID-II PDI score < 70, the Bayley-III MC score showed a cutoff of 80. CONCLUSION: There was a strong correlation between the BSID-II and Bayley-III in children with suspected developmental delay. The Bayley-III identified fewer children with developmental delay. The recommended cutoff value for developmental delay increased from a BSID-II score of 70 to a Bayley-III CLC score of 78 and Bayley-III MC score of 80.