Confounding occurs when the relationship between…
                        Confounding occurs when the relationship between an exposure (such as a risk factor or treatment) and a disease or outcome
                    
                 
            
                
            
                        
            
                
            
                    
            
                
                    When evaluating the effectiveness of a…
                        When evaluating the effectiveness of a drug, it is important to consider the natural history of the disease. 
            
            (#FOAMed written