Fig. 3From: The Siconolfi step test: a valid and reliable assessment of cardiopulmonary fitness in older men with prostate cancerScatter plot of differences between cardiopulmonary exercise test (CPET) and Siconolfi step test (SST) at Visit 1 vs Visit 2. The numbers next to markers show the age of participants. Men ≤ 60 years old are marked in red. The diagonal line is y = x. Vertical and horizontal lines represent Bland-Altman limits of agreement (LOA) (Fig. 2a)Back to article page