Impairment, disability and handicap in chronic respiratory illness.

Chronic obstructive airways disease (COAD) is a major, though neglected, medical and social problem in the United Kingdom today. Dyspnoea is one of the most distressing and disabling symptoms of COAD, which is itself the largest single cause of absence from work in the United Kingdom. 92 patients suffering from COAD were interviewed in order to assess impairment, disability and handicap. Measures included spirometric tests of lung function; the Fletcher breathlessness grading scale, the oxygen cost diagram and a visual analogue scale of dyspnoea; the Functional Limitations Profile (FLP); and the shortened 12 item General Health Questionnaire (GHQ-12), supplemented by the 7-item GHQ sub-scales of anxiety and severe depression. Low correlations were found between lung function and disability (-0.38, P less than 0.001), accounting for only 14% of the variance, and high correlations were found to exist between measures of dyspnoea and disability (-0.90, P less than 0.001). Major areas of disability and handicap included; household management, ambulation, sleep and rest, recreation and pastimes and work. Financial problems and difficulties, housing problems and problems of social isolation were also frequently reported. The paper goes on to discuss both the need for a more integrated approach to the care and rehabilitation of COAD patients and their families and for a complementary social perspective and approach to COAD and its treatment.