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Table 1 Demographic and baseline characteristics of enrolled patients

From: Development of a nomogram for predicting the presence of combined pulmonary fibrosis and emphysema

  All patients (N = 213) CPFE (N = 85) IPF (N = 128) P value
Demographic
 Age, median (IQR), yrs 75 (65–81) 75 (66–81) 75 (64–82) 0.72
 Gender, Male, n (%) 149 (70.0) 78 (91.8) 71 (55.5) 0.000*
 BMI (kg/m2) 24.9 (22.3–26.7) 24.7 (21.1–26.6) 25.0 (22.6–27.4) 0.32
 BMI ≥ 24, n (%) 29 (17.1) 11 (15.5) 18 (18.2) 0.65
 Smoking, n (%) 131 (63.3) 74 (88.1) 57 (46.3) 0.000*
 Thoracic operation history, n (%) 6 (2.9) 1 (1.2) 5 (4.1) 0.233
 Allergies n (%) 34 (16.7) 20 (24.4) 14 (11.5) 0.015*
 Occupational dust exposure, n (%) 45 (22.2) 16 (19.8) 29 (23.8) 0.5
Comorbidities, n (%)
 Hypertension 85 (41.9) 33 (41.3) 52 (42.3) 0.885
 Reflux esophagitis 39 (18.9) 17 (20.2) 22 (18.0) 0.691
 Coronary disease 65 (31.9) 27 (33.3) 38 (30.9) 0.715
 Diabetes 50 (24.4) 19 (23.5) 31 (25.0) 0.801
 Osteoporosis 22 (10.8) 7 (8.5) 15 (12.3) 0.396
 Chronic kidney diseases 15 (7.4) 4 (4.9) 11 (9.1) 0.270
 Stroke 33 (16.0) 14 (17.3) 19 (15.2) 0.690
 Tumor 39 (18.3) 18 (21.1) 21 (16.4) 0.378
 CCI, median (IQR) 1 (0–2) 1 (0–2) 1 (0–2) 0.80
 CPI, median (IQR) 39.4 (30.2–52.3) 38.9 (26.9–53.9) 40.8 (31.9–50.0) 0.73
  1. *P < 0.05