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Table 2 Baseline characteristics of the subjects

From: Randomised, controlled trial of N-acetylcysteine for treatment of acute exacerbations of chronic obstructive pulmonary disease [ISRCTN21676344]

  N-Acetylcysteine (n = 25) Placebo (n = 25)
Gender Male/Female 11/14 19/6
Age Years (SD) 73.6 (7.8) 73.0 (8.2)
Smoking History Pack Years (SD) 44.4 (36.2) 53.7 (36.8)
FEV 1 % predicted (SD) 22 (10) 24 (12)
VC % predicted (SD) 56 (18) 64 (22)
SaO 2 % (SD) 90.2 (4.0) 90.4 (2.7)
Breathlessness Likert Score (IQ range) 4 (3–6) 4 (3–5)
  1. Values are shown as mean and standard deviation except for Likert scores that are shown as median and interquartile range. There were no statistically significant differences between the two groups for any of the measures.