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Table 6 Logistic regression predicting which variables contributed to patients walking over 350 m or desaturating during the 6MWT

From: Relationship of CT-quantified emphysema, small airways disease and bronchial wall dimensions with physiological, inflammatory and infective measures in COPD

  Odds ratio 95% Lower CI 95% upper CI significance
6MWD > 350 m
 FEV1% 1.049 1.019 1.079 0.001
 Female 0.379 0.165 0.871 0.022
Desaturation > 5%
 %LAA<−950 1.101 1.059 1.143 < 0.001
  1. 44 subjects desaturated > 5% and 76 subjects did not
  2. 45 subjects walked over 350 m and 75 subjects did not
  3. %LAA<− 950, E/I MLD and PI10, FEV1% and demographics variables (age, gender, current smoking status, pack years and BMI) were combined into a regression model to predict each of the dependent variables. Only variables that made a significant difference to the model are included in the results