A population-based epidemiologic study of bowel habits in Guangdong province
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3760/cma.j.issn.0254-6450.2010.06.015
   		
        
        	
        		- VernacularTitle:广东省社区人群排便习惯现况调查
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Li-Shou XIONG
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Sui PENG
			        		
			        		;
		        		
		        		
		        		
			        		Xiao-Zhong PENG
			        		
			        		;
		        		
		        		
		        		
			        		Wei CHEN
			        		
			        		;
		        		
		        		
		        		
			        		Pin-Jin HU
			        		
			        		;
		        		
		        		
		        		
			        		Min-Hu CHEN
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. 中山大学附属第一医院
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Defecation;
			        		
			        		
			        		
				        		Habits;
			        		
			        		
			        		
				        		Prevalence survey
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Journal of Epidemiology
	            		
	            		 2010;31(6):662-665
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective To determine the bowel habits and its perceptions in the general population of Guangdong province. Methods Random clustered sampling involving permanent inhabitants aged 18-80 year was carried out under stratification of urban and suburban areas in Guangdong province. Questionnaire included the items on the characteristics of people being selected and their bowel habits. Results A total of 4103 residents (male 1878, female 2225) were investigated. Mean age among the responders was 42.81 ± 14.13 year. Among 4056 subjects (missing =47 ), 2972 subjects (73.3%) reported daily defecation, and 3951 subjects (97.4%) reported stool frequency between 3 times per week and three times per day. Two hundred and seventy subjects (6.6%) reported abnormal bowel habits by themselves. The stool frequency (OR=2.03, 95% CI:1.54-2.67) , forms of stool (OR=2.75, 95% CI: 2.35-3.22) and straining (OR=3.56, 95% CI:2.49-5.11) were significantly associated with self-reported abnormal bowel habits. Among 3949 subjects (missing= 154), 644 (16.3%) were defined as having abnormal bowel habits according to Rome Ⅱ criteria. There was poor agreement between self-reported abnormal bowel habits and that defined by Rome Ⅱ criteria (Kappa=0.312). Conclusion It seemed to be appropriate that the normal stool frequency was defined as bowel movements between 3 times per week and three times per day in the general population. The prevalence of self-reported abnormal bowel habits was lower than that defined by Rome Ⅱ criteria and the agreement between these two definitions was poor.