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Table 1 Baseline characteristics of participants

From: Mortality risk and causes of death in patients with non-cystic fibrosis bronchiectasis

VariablesControl group
(n = 90,313)
Bronchiectasis group
(n = 18,134)
P-value
Age, years51.5 ± 11.959.6 ± 11.7< 0.001
Male52,631 (58.3)8654 (47.7)< 0.001
BMI, kg/m223.8 ± 3.122.7 ± 3.3< 0.001
Smoking  < 0.001
 Never15,931 (17.6)5020 (27.7) 
 Ever10,264 (11.4)2859 (15.8) 
Comorbidities
 Hypertension9496 (10.5)2194 (12.1)< 0.001
 Diabetes6249 (6.9)1552 (8.6)< 0.001
 Dyslipidaemia13,707 (15.2)2269 (12.5)< 0.001
 COPD1882 (2.1)16,498 (9.0)< 0.001
 Asthma2372 (2.6)1445 (8.0)< 0.001
Baseline PFT, n60,85410,279 
 FEV1 (L)3.1 ± 0.72.3 ± 0.8< 0.001
 FEV1 (% predicted)98 ± 1192 ± 16< 0.001
 FVC (L)3.8 ± 0.93.1 ± 0.9< 0.001
 FVC (% predicted)98 ± 1192 ± 16< 0.001
 FEV1: FVC ratio (%)81 ± 574 ± 12< 0.001
  1. Categorical variables are expressed as number (%); continuous variables are expressed as mean +/− standard deviation.
  2. BMI body mass index, COPD chronic obstructive pulmonary disease, FVC functional vital capacity, FEV1 forced expiratory volume in 1 s, PFT pulmonary function test