Figure 2From: Influence of the incremental step size in work rate on exercise response and gas exchange in patients with pulmonary hypertensionVO2AT(ml/min) 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 -37.2 – 70.3.Back to article page