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Table 1 Baseline characteristics

From: Health related quality of life in patients with idiopathic pulmonary fibrosis in clinical practice: insights-IPF registry

Characteristic Value
Male sex 481 (77.2%)
Age, years 69.6 ± 8.7
Body mass index, kg/m2 27.5 ± 4.1
 Underweight 4 (0.6%)
 Normal weight 167 (26.8%)
 Overweight 305 (49.0%)
 Obesity 147 (23.6%)
Age at first symptom onset, years 65.8 ± 10.1
Age at IPF diagnosis, years 67.6 ± 9.6
Duration since first symptoms, years 3.6 ± 4.0
Disease duration, years 2.0 ± 3.3
Disease duration of less than 6 months 242 (38.8%)
Smoking status
 Never 237 (38.0%)
 Former 376 (60.4%)
 Current 10 (1.6%)
Gastro-oesophageal reflux 192 (30.8%)
Emphysema 55 (8.8%)
Genetic predisposition 31 (5.0%)
Six-minute walk distance, meters 272.4 ± 196.1
% FVC 67.5 (±17.8)
% FEV1 75.3 (±19.4)
% DLCO 35.6 (±17.0)
Long term oxygen use 201 (32.3%)
GAP index
 Stage I 87 (20.2%)
 Stage II 238 (55.2%)
 Stage III 106 (24.6%)
  1. Based on sample of patients with HrQoL data (n = 623). Values are n (%) or mean ± standard deviation
  2. GAP Gender, Age, Physiology index