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Table 2 Patient characteristics by target weight achievement group as of the first reporting month in 2012a

From: Target weight achievement and ultrafiltration rate thresholds: potential patient implications

Characteristic Achieved target weightb
(n = 104,377)
Missed target weightc
(n = 47,819)
Below target weightd
(n = 17,466)
Above target weighte
(n = 30,353)
Post-dialysis weight and target weight difference
 Mean ± SD 0.0 ± 0.5; 0.6 ± 3.3; −2.7 ± 2.4; 2.5 ± 1.9;
 Median [Q1, Q3] 0.0 [−0.3, 0.4] 1.3 [−1.5, 2.2] −1.9 [−3.2, −1.3] 1.9 [1.4, 2.9]
Age (years) 62.9 ± 15.0 61.0 ± 14.9 62.5 ± 15.0 60.2 ± 14.8
Female sex 46,842 (44.9) 21,604 (45.2) 8100 (46.4) 13,504 (44.5)
Black race 37,129 (35.6) 18,210 (38.1) 6399 (36.6) 11,811 (38.9)
Hispanic ethnicity 18,268 (17.5) 8079 (16.9) 3039 (17.4) 5040 (16.6)
Time on dialysis
  < 1 years 33,105 (31.7) 16,770 (35.1) 7904 (45.3) 8866 (29.2)
 1–5 years 45,341 (43.4) 20,371 (42.6) 6216 (35.6) 14,155 (46.6)
  > 5 years 25,931 (24.8) 10,678 (22.3) 3346 (19.2) 7332 (24.2)
Access type
 Graft 18,840 (18.1) 8222 (17.2) 2675 (15.4) 5547 (18.3)
 Fistula 58,615 (56.2) 23,714 (49.7) 7417 (42.6) 16,297 (53.8)
 Catheter 26,764 (25.7) 15,781 (33.1) 7330 (42.1) 8451 (27.9)
Pre-dialysis SBP
  < 100 mmHg 1202 (1.2) 832 (1.7) 347 (2.0) 485 (1.6)
 100–129 mmHg 19,979 (19.1) 10,036 (21.0) 4000 (22.9) 6036 (19.9)
 130–159 mmHg 50,801 (48.7) 21,782 (45.6) 8009 (45.9) 13,773 (45.4)
  ≥ 160 mmHg 32,388 (31.0) 15,163 (31.7) 5108 (29.2) 10,055 (33.1)
History of heart failure 25,204 (24.1) 12,679 (26.5) 3417 (19.6) 9262 (30.5)
History of diabetes 42,687 (40.9) 20,335 (42.5) 6144 (35.2) 14,191 (46.8)
Post-dialysis weight (kg) 78.7 ± 21.5 83.9 ± 25.0 80.0 ± 23.5 86.2 ± 25.6
Prescribed TT <240 min 74,970 (71.8) 31,982 (66.9) 12,157 (69.6) 19,825 (65.3)
UF volume (L) 2.4 ± 1.2 2.7 ± 1.7 2.3 ± 1.8 2.9 ± 1.5
Prescribed UF rate (mL/h/kg) 8.6 ± 4.5 9.3 ± 5.6 7.7 ± 6.0 10.2 ± 5.2
Missed treatments ≥3 11,307 (10.8) 7921 (16.6) 3686 (21.1) 4235 (14.0)
eKt/V 1.7 ± 0.3 1.6 ± 0.3 1.6 ± 0.3 1.6 ± 0.3
  1. aPatient N = 152,196. Values presented as means ± SDs, medians [quartile 1, quartile 3] or numbers (percentages). Because patients entered and exited the cohort according to selection criteria application on a rolling monthly basis, the first reporting month varied across patients
  2. bAverage post-dialysis weight < 1 kg above or below the prescribed target weight
  3. cAverage post-dialysis weight ≥ 1 kg above or below the prescribed target weight
  4. dAverage post-dialysis weight ≥ 1 kg below the prescribed target weight (below depicted by a negative sign)
  5. eAverage post-dialysis weight ≥ 1 kg above the prescribed target weight