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Table 1 Baseline characteristics of the participants

From: Panax ginseng therapy for chronic obstructive pulmonary disease: a clinical trial protocol and pilot study

Baseline assessment Treatment group (n = 5) Placebo group (n = 5)
Age (years) 67 ± 4 62.6 ± 4.15
Male/Female 5/0 4/1
Smoking status
  Current smoker 3 0
  Former smoker 1 5
  Never smoked 1 0
FEV1 (L) (post bronchodilator) 1.38 ± 0.63 0.83 ± 0.10
FVC (L) (post bronchodilator) 2.79 ± 0.59 2.33 ± 0.36
FEV1/FVC (post bronchodilator) 0.48 ± 0.13 0.36 ± 0.06
COPD severity
  Moderate 1 0
  Severe 4 5
Symptom severity Mild Mod Sev Mild Mod Sev
  Shortness of breath 3 2 0 3 2 0
  Cough 2 3 0 5 0 0
  Sputum production 3 1 1 5 0 0
Antibiotics 0 2
Long-acting beta-agonists 3 5
Inhaled corticosteroids 3 5
Chinese medicine diagnosis
Lung and kidney qi deficiency 4 3
Lung, spleen and kidney qi deficiency 1 2