Table 1

Clinical characteristics of the study population

VariableILDPleural effusionBronchiectasisLung cancer
Total number27896
Male/female11/166/26/34/2
Age (years)66.86±12.8345.88±17.3758.33±12.6469.17±8.01
WBC (109/L)7.02 (5.83–9.37)4.96±1.078.3±3.136.635 (6.035–10.085)
LY (%)20.96±10.7128.81±7.4726.94±8.5119.48±9.91
N (%)68.26±13.0557.62±7.4957.72±15.1466.08 (61.80–77.86)
Hb124.11±14.06122.86±5.89118.89±9.83106.8±7.28
ESR (mm)45 (23–74.5)16.75±5.2514 (7.5–58)44.5±44.85
FEV1/pred (%)82.74±25.71*103.2±6.9059.52±25.1585.88±10.88
FEV1/FVC (%)83.78 (80.33–86.68)*80.60±7.0160.28±19.5271.83±8.22
TLC/pred (%)82.49±21.37*97.73±6.83102.1 (85.1–164.9)88.15±16.43
RV/pred (%)100.72±40.92*100.67±12.51164.10±87.7099.60±12.30
RV/TLC (%)46.08 (40.52–52.73)*35.34±3.9451.70±18.8646.09±5.27
DLCO/pred (%)51.64±22.04*84.57±3.2070.08±26.4363.2±4.24
  • Data were expressed as mean±SD or median (range) as appropriate.

  • *Statistical analysis performed in 19 patients with ILD.

  • DLCO, diffusing capacity of the lungs for carbon monoxide; ESR, erythrocyte sedimentation rate; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; Hb, hemoglobin; ILD, interstitial lung disease; LY, lymphocyte; N, neutrophil; pred, predicted value; RV, residual volume; TLC, total lung capacity; WBC, white blood cell.