Fig. 3

Percentage of patients reporting time to recover after their haemodialysis session between less than an hour to more than 12 h. Patients divided into four groups based on whether their nadir systolic blood pressure (SBP) had fallen to 90 or 100 mmHg or less. Patients with a SBP of ≤ 90 mmHg reported longer recovery times compared with those with SBP > 90 mmHg (adjusted X2 15.7, p = 0.004); as did those with SBP of ≤ 100 mmHg compared to those with SBP > 100 mmHg (adjusted X2 = 12.1, p = 0.017)