1. Assessing fitness for surgery: a comparison of questionnaire, incremental shuttle walk, and cardiopulmonary exercise testing in general surgical patients†  
R. Struthers, P. Erasmus, K. Holmes, P. Warman, A. Collingwood, J.R. Sneyd 
British Journal of Anaesthesia 
Volume 101, Issue 6, Pages (December 2008)
DOI: /bja/aen310
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
Correlation between ISWT distance (m) and VO2peak (ml O2 kg−1 min−1). The linear regression line VO2peak (ml O2 kg−1 min−1)= ×shuttle walk test distance (m) is plotted together with its 95% confidence limits (R2=0.57, P<0.0001).
British Journal of Anaesthesia  , DOI: ( /bja/aen310)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
Correlation between DASI and VO2peak (ml O2 kg−1 min−1). The linear regression line VO2peak (ml O2 kg−1 min−1)= ×DASI is plotted together with its 95% confidence limits (R2=0.45, P<0.0001).
British Journal of Anaesthesia  , DOI: ( /bja/aen310)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

4. Fig 3
ROC curves for predicting VO2peak>15 ml O2 kg−1 min−1 from shuttle walk test distance (m) and DASI. AUC is for shuttle walk test distance (95% CI 0.770–0.993, P=0.0001) and for DASI score (95% CI 0.620–0.911, P=0.0002).
British Journal of Anaesthesia  , DOI: ( /bja/aen310)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

5. Fig 4
ROC curves for predicting AT >11 ml O2 kg−1 min−1 from DASI and shuttle walk test distance (m). AUC is for shuttle walk test distance (95% CI 0.645–0.945, P=0.001) and for DASI (95% CI 0.630–0.994, P=0.003).
British Journal of Anaesthesia  , DOI: ( /bja/aen310)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions

6. British Journal of Anaesthesia 2008 101, 774-780DOI: (10
British Journal of Anaesthesia  , DOI: ( /bja/aen310)
Copyright © 2008 British Journal of Anaesthesia Terms and Conditions