Table 1.

Baseline characteristics

CharacteristicAF or HFNo AF or HFAllP-Value
N105239344
Age, yr74.6 [68.4–80.9]65.3 [50.1–75.2]69.3 [55.7–77.2]<0.001
Men, n (%)76 (72%)158 (66%)234 (68%)0.52
Body weight, kg74.8 [66–86.6]74 [65.4–84.9]74.3 [65.5–85.5]0.54
Height, m1.71 (0.0893 SD)1.71 (0.0837 SD)1.71 (0.0853 SD)0.93
Body mass index, kg/m225.4 [22.5–29]25.1 [22.8–28.6]25.2 [22.8–28.7]0.46
Dialysis vintage, mo38 [21.2–77.6]42.4 [23–75.6]41.1 [22.7–76.6]0.35
Calcium phosphate product, mmol2/L23.76 (1.07 SD)3.88 (1.18 SD)3.85 (1.15 SD)0.38
Effective time of dialysis per session, h4.22 [4–4.5]4.25 [4–4.53]4.23 [4–4.5]0.33
UFV, ml2366 (1190 SD)2156 (1094 SD)2220 (1127 SD)0.11
UF rate, ml/h539 (269 SD)484 (237 SD)501 (248 SD)0.06
Kt/V (−)1.45 (0.358 SD)1.49 (0.402 SD)1.48 (0.389 SD)0.34
CVC/AVF, n (%)11 (10%)/94 (90%)10 (4%)/229 (96%)21 (6%)/323 (94%)0.08
Presence of diabetes, n (%)54 (51%)81 (34%)135 (39%)0.009
History of hypertensiona, n (%)100 (95%)226 (95%)326 (95%)0.97
Smokers, n (%)15 (14%)65 (27%)80 (23%)0.03
Hemoglobin, g/dl11.7 (1.21 SD)11.7 (1.18 SD)11.7 (1.19 SD)0.98
Total protein, g/dl6.68 (0.529 SD)6.57 (0.527 SD)6.61 (0.529 SD)0.17
Serum albumin, g/dl3.89 (0.421 SD)4.04 (0.404 SD)3.99 (0.414 SD)0.002
Total cholesterol, mg/dl164 (39.1 SD)182 (45.2 SD)177 (44.2 SD)0.001
High-sensitive CRP, mg/dl0.712 [0.319–1.21]0.377 [0.165–0.85]0.47 [0.196–0.96]<0.001
Use of statins, n (%)52 (50%)84 (35%)136 (40%)0.04
Use of anticoagulation medication, n (%)28 (27%)24 (10%)52 (15%)<0.001
Use of antihypertensive medication, n (%)100 (95%)214 (90%)314 (91%)0.23
SBP, mm Hg120 (17.5 SD)125 (15.8 SD)124 (16.5 SD)0.003
DBP, mm Hg69.1 (11.6 SD)75.6 (11.4 SD)73.6 (11.8 SD)<0.001
PP, mm Hg50.6 (12.1 SD)49.8 (11.4 SD)50 (11.6 SD)0.57
MBP, mm Hg92.3 (13.3 SD)98.4 (12.4 SD)96.5 (13 SD)<0.001
Heart rate, 1/min71.3 (10.3 SD)71.9 (10.2 SD)71.7 (10.2 SD)0.57
All-cause mortality, n (%)59 (56%)56 (23%)115 (33%)<0.001
Cardiovascular mortality, n (%)20 (19%)27 (11%)47 (14%)0.16
  • Results are presented as mean (SD) and median [IQR] for normally and non-normally distributed data, respectively; categorical data as total number (percentage). P values present the results of group-wise comparisons (AF or HF versus no AF or HF). HF, heart failure; UFV, ultrafiltration volume; UF, ultrafiltration; CVC, central venous catheter; AVF, arteriovenous fistula; CRP, C-reactive protein; DBP, diastolic BP; PP, pulse pressure; MBP, mean BP.

  • a History of hypertension was defined as either use of antihypertensive medication and/or 24-hour BP >140/90 mm Hg.