Bratås O 
	
					    												Sør-Trøndelag University College, 
  Faculty of Nursing, Maurutz Hansens gt 2  Trondheim, 7030
Norway						                            
                            
						
 Research Article
												A Comparison Of Two Versions Of The General Health Questionnaire Applied In A COPD Population 						
Author(s): Bratås O, Grønning K and Forbord TBratås O, Grønning K and Forbord T             
						
												
				 Objectives: To compare responsiveness, screening performances and internal consistency between version 20 and 12 of the General Health Questionnaire (GHQ), and concurrent validity of the GHQ-12 through agreement with The Hospital Anxiety and Depression Scale (HADS) in patients with Chronic Obstructive Pulmonary Disease (COPD) prior to and after pulmonary rehabilitation. Methods: Consecutive COPD patients with a mean age of 65, comprising 161 patients at baseline and 136 at 4-weeks follow-up. Responsiveness was analyzed through Paired Sample T-test, screening performances by Mc Nemar Test, internal consistency through Cronbach's alpha, and concurrent validity by The Bland-Altman technique. Results: The GHQ mean score was significantly reduced by the GHQ-20 and GHQ-12 after rehabilitation, with score differences of -4 and -3.9 using Likert format (p<0.001), and -3.3 and -1.9 using bi.. View More»
				  
												DOI:
												 10.4172/hccr.1000123