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Table 1 Baseline characteristics of study subjects and comparison between patients with and without depression

From: Prevalence of depression and its associated factors in bronchiectasis: findings from KMBARC registry

Variable Nondepressed
(PHQ-9 < 10)
(n = 642)
Depressed
(PHQ-9 ≥ 10)
(n = 168)
p value
Age (years) 64.6 ± 9.1 63.3 ± 10.2 0.140
Sex (female) 355 (55.3) 97 (57.7) 0.631
Bronchiectasis duration (years) 3.2 ± 1.6 3.3 ± 1.7 0.432
Ever smoker 216 (33.7) 56 (33.3) 1.000
BMI 23.3 ± 6.9 22.5 ± 3.9 0.049
FEV1 (%) 65.8 ± 20.8 60.4 ± 20.8 0.005
FEV1 (L) 1.8 ± 0.6 1.6 ± 0.6 0.002
FVC (%) 74.1 ± 17.5 68.4 ± 17.1 0.001
FVC (L) 2.7 ± 0.8 2.4 ± 0.8 < 0.001
Asthma or COPD 294 (45.8) 80 (47.6) 0.737
Number of exacerbations in the previous year 1.2 ± 1.9 2.0 ± 3.7 < 0.001
Hospitalization 99 (15.4) 42 (25.0) 0.005
Tuberculosis history 219 (35.8) 51 (31.7) 0.372
NTM history 65 (10.64) 14 (8.70) 0.564
Depression history 15 (2.3) 20 (11.9) < 0.001
LTOT or NIV 8 (1.2) 11 (6.5) < 0.001
ICU or MV 4 (0.6) 3 (1.8) 0.326
Etiology    
Post-infectious 249 (43.7) 60 (38.5) 0.281
Idiopathic 229 (40.2) 66 (42.3) 0.698
PA colonization 46 (7.3) 16 (9.6) 0.412
Sputum volume (≥ 30 cc/day) 253 (39.4) 64 (38.1) 0.825
Radiological extent (≥ 3 lobes) 342(53.3) 96 (57.1) 0.418
  1. Values are presented as the means ± standard deviation or number (%)
  2. BMI, body mass index; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; NTM, nontuberculosis mycobacterium; LTOT, long term oxygen therapy; NIV, noninvasive ventilation; ICU, intensive care unit; MV, mechanical ventilation; PA, Pseudomonas aeruginosa