Anxiety and depression in COPD patients and correlation with sputum and BAL cytology

Table 1 Characteristics of the patients

Patient characteristics	N (%)
Male/female (%)	35/25 (58/42)
Age (years)	66 ± 11
Pack-years	58 ± 28
Current smoker (n) (%)	16 (26.7)
Body mass index, kg/m2	26 ± 4.5
COPD duration (year)	7.45 ± 7.12
LTOT use (n) (%)	10 (16.7)
NIMV use (n) (%)	5 (8.3)
Hospitalization in the previous year (n) (%)	12 (20)
FEV₁, liters	1.3 ± 0.5
FEV₁ (%predicted)	51 ± 15
FVC, liters (%predicted)	2.7 ± 0.7
FVC, %predicted	83 ± 14
FEV₁/FVC	51 ± 15
pO₂, mmHg	71.3 ± 9.7
pCO₂, mmHg	39.8 ± 4.9
MRC dyspnea scale	2.2 ± 1.07
Six-minute walking distance	302 ± 120
BODE index	3.2 ± 2.5

Data are expressed as mean ± standard deviation (SD).
Definition of abbreviations: BODE, body mass, obstruction, dyspnea and exercise capacity; COPD, chronic obstructive pulmonary disease; FEV₁, forced expiratory volume in one second; FVC, forced ventilatory capacity; LTOT, long term oxygen therapy; MRC, Medical Research Council; NIMV, non-invasive mechanical ventilation.

ISSN: 2049-6958