Effect of Having a Usual Source of Care on Medical Expenses – Using the Korea Health Panel Data
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3346/jkms.2019.34.e229
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Doori KIM
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Sollip KIM
			        		
			        		;
		        		
		        		
		        		
			        		Hye Kyeong PARK
			        		
			        		;
		        		
		        		
		        		
			        		In Hyuk HA
			        		
			        		;
		        		
		        		
		        		
			        		Boyoung JUNG
			        		
			        		;
		        		
		        		
		        		
			        		Won Hyung RYU
			        		
			        		;
		        		
		        		
		        		
			        		Sang Il LEE
			        		
			        		;
		        		
		        		
		        		
			        		Nak Jin SUNG
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, Korea.
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Usual Source of Care;
			        		
			        		
			        		
				        		Korea Health Panel Data;
			        		
			        		
			        		
				        		Panel Analysis;
			        		
			        		
			        		
				        		Health Expenditure;
			        		
			        		
			        		
				        		Primary Health Care
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Health Expenditures;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Inpatients;
				        		
			        		
				        		
					        		Korea;
				        		
			        		
				        		
					        		Outpatients;
				        		
			        		
				        		
					        		Primary Health Care
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Journal of Korean Medical Science
	            		
	            		 2019;34(35):e229-
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	BACKGROUND: There is a controversy about the effect of having a usual source of care on medical expenses. Although many studies have shown lower medical expenses in a group with a usual source of care, some have shown higher medical expenses in such a group. This study aimed to empirically demonstrate the effect of having a usual source of care on medical expenses. METHODS: The participants included those aged 20 years and older who responded to the questionnaire about “having a usual source of care” from the Korean Health Panel Data of 2012, 2013, and 2016 (6,120; 6,593; and 7,598 respectively). Those who responded with “I do not get sick easily” or “I rarely visit medical institutions” as the reasons for not having a usual source of care were excluded. The panel regression with random effects model was performed to analyze the effect of having a usual source of care on medical expenses. RESULTS: The group having a usual source of care spent 20% less on inpatient expenses and 25% less on clinic expenses than the group without a usual source of care. Particularly, the group having a clinic-level usual source of care spent 12% less on total medical expenses, 9% less on outpatient expenses, 35% less on inpatient expenses, and 74% less on hospital expenses, but 29% more on clinic expenses than the group without a usual source of care. CONCLUSION: This study confirmed that medical expenses decreased in the group with a usual source of care, especially a clinic-level usual source of care (USC), than in the group without a usual source of care. Encouraging people to have a clinic-level USC can control excessive medical expenses and induce desirable medical care utilization.