Table 2.
Subgroup analysis of ΔPVi% median values between non-IDH and IDH groups
| Variables | Subgroup Level | Non-IDH group (n = 139) | IDH group (n = 61) | Sample Size (Non-IDH group / IDH group) |
P value |
|---|---|---|---|---|---|
| Sex | Female | -11.44 (-31.04, 11.11) | 50.00 (24.90, 106.67) | 66 / 23 | < 0.001 |
| Male | 0.00 (-18.18, 35.29) | 55.49 (25.89, 96.67) | 73 / 38 | < 0.001 | |
| Age | ≤ 60 years | -6.25 (-27.27, 22.22) | 48.33 (22.92, 85.71) | 85 / 42 | < 0.001 |
| > 60 years | -7.42 (-25.00, 27.91) | 86.67 (38.75, 146.43) | 54 / 19 | < 0.001 | |
| Co-morbidity | No | 0.00 (-11.76, 22.22) | 15.00 (-3.12, 47.22) | 13 / 8 | 0.293 |
| Yes | -7.14 (-26.48, 25.69) | 70.59 (33.33, 100.00) | 126 / 53 | < 0.001 | |
| HD Duration | ≤ 10 years | -6.07 (-25.00, 28.93) | 51.92 (25.00, 95.00) | 108 / 48 | < 0.001 |
| > 10 years | -18.18 (-36.31, 12.70) | 70.59 (27.59, 100.00) | 31 / 13 | < 0.001 | |
| End-stage renal disease Duration | ≤ 10 years | -6.07 (-25.00, 30.83) | 50.00 (25.00, 87.78) | 104 / 47 | < 0.001 |
| > 10 years | -16.67 (-31.37, 12.70) | 85.29 (29.02, 100.00) | 35 / 14 | < 0.001 | |
| Antihypertensive Medications | No | 0.00 (-15.44, 27.31) | 50.00 (18.75, 100.00) | 26 / 19 | 0.002 |
| Yes | -7.14 (-27.27, 22.22) | 55.49 (27.83, 100.00) | 113 / 42 | < 0.001 | |
| Pre-HD Weight (kg) | ≤ 50 kg | -7.14 (-28.99, 37.50) | 88.89 (83.33, 100.00) | 23 / 9 | 0.001 |
| > 50 kg | -6.70 (-25.23, 22.22) | 50.00 (25.00, 100.00) | 116 / 52 | < 0.001 | |
| HD Mode | HD | -5.88 (-25.00, 20.00) | 50.00 (22.22, 86.67) | 69 / 21 | < 0.001 |
| Hemodiafiltration | -27.78 (-41.07, 10.10) | 76.92 (46.67, 137.50) | 15 / 21 | < 0.001 | |
| High-flux HD | -7.14 (-21.11, 34.31) | 40.00 (2.50, 94.44) | 55 / 19 | 0.002 |
Data are presented as median (interquartile range). IDH: Intradialytic hypotension; HD: Hemodialysis; ΔPVi%: Change in Pleth variability index percentage