Figure 3From: Influence of the incremental step size in work rate on exercise response and gas exchange in patients with pulmonary hypertensionVE vs. VCO2 slope assessed by NYHAII/III protocol and the Jones protocol indicated as mean, interquartile range and 97.5 confidence interval. n.s. for missing significance. 95% confidence interval for the difference of variables was -4.6 – 7.4.Back to article page