Introduction: depression is common in both young adults and elderly pe
ople with chronic obstructive pulmonary disease (COPD), Methods: we co
mpared the prevalence of depressive symptomatology in elderly outpatie
nts with stable disabling COPD with that in healthy controls and age-m
atched patients with other disabilities, and also assessed the relatio
n between degree of disability, quality of life and depressive symptom
s. The subjects were 96 older people with COPD [56 men; aged 70-93 (me
an 78) years], 55 normal controls [23 men; aged 70-90 (mean 78) years]
and 53 disabled controls [27 men; aged 70-92 (mean 78) years]. Exclus
ion criteria were acute respiratory exacerbation or use of oral steroi
ds in the last 6 weeks, known previous psychiatric disorder and acute
or chronic confusion. Results: mean land SD) values for 1-s forced exp
iratory volume (FEV1) were 51 (20)% in COPD subjects, 107 (24)% in nor
mal controls and 82 (13)% in disabled controls. Forty-four subjects wi
th COPD (46%), six normal controls (11%) and 14 disabled controls (26%
) scored in the 'caseness' range for depressive ideation on the Brief
Assessment Schedule Depression Cards (BASDEC) screening questionnaire.
A multiple regression analysis was performed for the COPD group to id
entify factors predictive of BASDEC score. Predictive variables were t
otal quality of life score [P<0.0001], Chronic Respiratory Questionnai
re and level of activities of daily living (Nottingham extended activi
ties of daily living scale) [P = 0.001]. Spirometry results and exerci
se tolerance (6-min walk distance) did not help predict BASDEC score (
R-2 = 0.50). Conclusions: depressive symptoms are common in elderly pa
tients with COPD; prevalence and/or severity of depressive symptoms ma
y be greater in those who are most disabled.