Table 1.
Study group characteristics.
Table 2.
Self-reported physical activity level.
Table 3.
Response to exercise.
Table 4.
Determinants of aerobic exercise capacity (peak workload) in CKD 2–5 and controls identified by multiple regression analysis.
Table 5.
Determinants of aerobic exercise capacity (peak workload) in CKD 2–5 identified by multivariate regression analysis in 87 subjects*.
Fig 1.
Stepwise increase in the explanatory value (R2) of variables determining exercise capacity in CKD 2–5 using manual forward regression analysis.
Age, sex and height2 were included in the first step and, thereafter, one additional variable was added to the model to show the increase in R2 at each step. SV = stroke volume, pHR = peak heart rate, Hb = haemoglobin level. Number of subjects = 90 because of missing values for one or more variable. P-values in parenthesis. P-values in step 1: < 0.01 for all variables. P-values in step 2: height2 0.1, all other variables <0.01. P-values in step 3: age 0.7, height2 0.02, all other variables < 0.01. P-values in step 4: age 0.6, sex 0.04, height2 0.04, all other variables < 0.01.