Usefulness of the CAT, LCOPD, EQ-5D and COPDSS scales in understanding the impact of lung disease in patients with alpha-1 antitrypsin deficiency.
Alpha-1-antitrypsin deficiency (AATD) is an inherited disorder responsible for early onset emphysema associated with a significant impairment of health-related quality of life (HRQoL). Our aim was to assess the usefulness of different instruments to evaluate the HRQoL in patients with AATD compared to non-AATD COPD. Observational, cross-sectional study in which all patients filled out a series of questionnaires: the COPD severity score (COPDSS), the EuroQoL 5-Dimensions (EQ-5D), the Living with COPD (LCOPD) and the COPD Assessment Test (CAT). A total of 96 patients were included, 35 with AATD (mean age 56.5 yrs, 57.1% male and mean FEV1(%) 48.7% and 61 non-AATD COPD (70.3 yrs, 80.3% men and FEV1(%) 47%. The questionnaire scores were similar, with a tendency towards worse scores in AATD for the EQ-5D (VAS) (64.8 (20.2) vs. 71.6 (17.1); p = 0.08). The correlations between the different scores and FEV1(%) were significant in both groups for COPDSS and LCOPD, but not for CAT and EQ-5D. In general, the correlations of scores with FEV1(%) were stronger for AATD compared with non-AATD COPD patients: COPDSS r = -0.570, p < 0.01 for AATD and r = -0.260, p < 0.05 for COPD; LCOPD r = -0.502, p < 0.001 for AATD and r = -0.304, p < 0.05 for non-AATD COPD. Patients with AATD have a similar degree of HRQoL impairment as older subjects with non-AATD COPD and showed a stronger correlation between HRQoL measurements and lung function impairment compared with non-AATD COPD. This may be related to the characteristics of the disease in these patients who are usually younger, with less co-morbidity and lower smoking consumption.
1Istituto di Malattie dell'Apparato Respiratorio, Dipartimento Medicina Clinica e Sperimentale, Universita' di Sassari , Italy.
Sandra
S
Manca
Esther
E
Rodriguez
Arturo
A
Huerta
Maria
M
Torres
Lourdes
L
Lazaro
Sergio
S
Curi
Pietro
P
Pirina
Marc
M
Miravitlles
D000368:Aged; D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008875:Middle Aged; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*; D011788:Quality of Life; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D019896:alpha 1-Antitrypsin Deficiency / Q000503:physiopathology*
Alpha-1-antitrypsin deficiency; CAT; COPD; COPDSS; EQ-5D; quality of life