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Table 4 Slope of least squares regression line

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)
Likert Score 0.16 (0.42) 0.35 (0.45)
FEV 1 % predicted 0.001 (0.015) 0.019 (0.019)
Sa0 2 0.40 (0.89) 0.88 (1.43)
  1. Mean and standard deviations for slopes of the least square regression lines for the effects of NAC and placebo on Likert scores for breathlessness, FEV1 % predicted and SaO2. There were no significant differences between NAC and placebo.