Prevalence of myopia and consistency evaluation of three myopia assessment methods among children and adolescents
	    		
	    			
	    			
		        		
			        		
		        		
			        
		        		
			        		
		        		
			        
		   		
		   		
		   			
		   		
	    	
    	 
    	10.16835/j.cnki.1000-9817.2023.05.024
   		
        
        	
        		- VernacularTitle:3种方法界定儿童青少年近视检出率及其一致性评价
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		XU Zihang, HU Yuanyuan, WEN Ying, WU Ziyun, YU Mingkun, TAO Fangbiao, BI Hongsheng
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Ophthalmology and Optometry Medical School, Shandong University of Traditional Chinese Medicine, Jinan (250014) , China
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Myopia;
			        		
			        		
			        		
				        		Prevalence;
			        		
			        		
			        		
				        		Vision screening;
			        		
			        		
			        		
				        		Child;
			        		
			        		
			        		
				        		Adolescent
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Journal of School Health
	            		
	            		 2023;44(5):747-750
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	Objective:To evaluate the prevalence and consistency of screening myopia, non-cycloplegic myopia and cycloplegic myopia in children and adolescents, and to provide references for exploring the factors affecting the consistency of different definition methods.
				        	
				        
				        	Methods:A total of 3 868 children and adolescents aged 6 to 17 years from seven schools were included in a school based cross sectional study in Shandong Province in September 2020. The prevalence of screening myopia, non cycloplegic refraction, and cycloplegic refraction at different ages and all children and adolescents were analyzed. With cycloplegic spherical equivalent ≤-0.50 D as the gold standard for myopia, and  Kappa  test and area under the ROC curve were used to evaluate the consistency.
				        	
				        
				        	Results:The prevalence of cycloplegic myopia and screening myopia were 36.7% and 38.3% among children and adolescents. The prevalence of non cycloplegic myopia was 62.4%, which was significantly higher than screening myopia and cycloplegic myopia two methods in primary and junior high schools. Among 3 868 subjects, there were 3 628 (93.8%) subjects with screening myopia and 2 862 (74.0%) subjects with non cycloplegic myopia who were consistent with the gold standard for myopia. The  Kappa  values of screening myopia and non cycloplegic myopia were 0.87 and 0.51, and the area under the ROC curve was 0.94 (95% CI =0.93-0.95) and 0.79 (95% CI =0.78-0.81). Compared with other groups, children and adolescents aged 8 to 17 years, in junior or high school, urban residence, better presenting distance visual acuity, and astigmatism ≤1.50 D had a higher consistency in the application of screening myopia ( P <0.05).
				        	
				        
				        	Conclusion:The consistency between screening myopia and cycloplegic myopia is high, and the consistency between non cycloplegic objective myopia is low.