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Table 7 Percentage of facility patients with 30-day cumulative fluid-related weight gains above varied thresholds after institution of an UF rate threshold of 13 mL/h/kg overall and by subgroup (February 2012)a

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

Group

% of facility patients with a 30-day cumulative fluid-related weight gain

≥ + 2 kg

≥ + 3 kg

≥ + 4 kg

Overall

17.4 ± 10.8;

16.0 [9.5, 24.1]

13.3 ± 9.6;

11.6 [6.5, 18.8]

10.6 ± 8.5;

9.1 [4.4, 15.6]

Sex

 Female

18.6 ± 14.7;

16.7 [7.9, 27.3]

14.5 ± 13.4;

12.5 [3.3, 22.2]

11.5 ± 11.8;

9.5 [0.0, 18.2]

 Male

16.5 ± 12.9;

14.3 [7.1, 24.0]

12.5 ± 11.5;

10.8 [3.4, 19.0]

9.9 ± 10.3;

7.7 [0.0, 15.4]

Race

 Black

15.1 ± 18.4;

11.1 [0.0, 22.5]

11.1 ± 16.5;

6.3 [0.0, 16.7]

8.7 ± 14.9;

3.2 [0.0, 12.5]

 Non-black

19.4 ± 15.3;

17.1 [9.1, 27.3]

15.2 ± 13.8;

13.0 [5.3, 22.2]

12.2 ± 12.4;

10.0 [1.9, 18.2]

Ethnicity

 Hispanic

24.6 ± 28.7;

17.2 [0.0, 34.7]

19.8 ± 26.5;

11.6 [0.0, 28.6]

16.2 ± 24.4;

6.7 [0.0, 23.1]

 Non-Hispanic

16.6 ± 11.2;

15.2 [8.8, 23.1]

12.5 ± 10.0;

10.7 [5.6, 18.2]

9.9 ± 9.0;

8.0 [3.4, 14.7]

Heart Failure

 (−) Heart failure

16.5 ± 11.9;

15.4 [7.7, 23.5]

12.5 ± 10.6;

10.7 [5.0, 18.2]

9.8 ± 9.6;

8.0 [1.8, 14.5]

 (+) Heart failure

20.3 ± 20.3;

16.7 [0.0, 31.0]

15.9 ± 18.7;

11.1 [0.0, 25.0]

12.9 ± 17.1;

7.7 [0.0, 20.0]

Prescribed TT

  < 240 min

19.6 ± 12.8;

18.8 [10.3, 27.8]

15.1 ± 11.4;

13.3 [7.1, 22.1]

12.2 ± 10.2;

11.1 [4.5, 18.2]

  ≥ 240 min

10.7 ± 15.6;

5.7 [0.0, 16.7]

7.3 ± 13.3;

0.0 [0.0, 11.1]

5.2 ± 11.4;

0.0 [0.0, 6.7]

IDWG

  < 2 kg

6.0 ± 10.6;

0.0 [0.0, 10.0]

3.9 ± 8.3;

0.0 [0.0, 5.7]

2.8 ± 6.9;

0.0 [0.0, 0.0]

  ≥ 2 kg

22.3 ± 13.9;

21.1 [12.5, 30.8]

17.3 ± 12.6;

15.4 [8.3, 25.0]

13.8 ± 11.2;

12.0 [5.6, 20.0]

  < 3 kg

10.1 ± 9.8;

8.1 [2.4, 15.0]

7.2 ± 8.1;

5.3 [0.0, 11.1]

5.5 ± 7.2;

3.4 [0.0, 8.3]

  ≥ 3 kg

28.7 ± 19.5;

26.9 [15.4, 40.0]

22.6 ± 18.2;

20.0 [10.0, 33.3]

18.3 ± 16.5;

16.7 [6.3, 26.9]

  < 4 kg

13.5 ± 10.0;

12.0 [6.3, 19.0]

10.1 ± 8.7;

8.3 [3.7, 14.3]

7.9 ± 7.6;

6.3 [0.0, 11.8]

  ≥ 4 kg

36.7 ± 28.1;

33.3 [16.7, 50.0]

29.0 ± 27.0;

25.0 [0.0, 44.4]

23.8 ± 25.5;

20.0 [0.0, 35.7]

Prescribed UF rate

  < 13 mL/h/kg

7.3 ± 6.8;

6.3 [2.1, 10.5]

4.7 ± 5.6;

3.6 [0.0, 7.1]

3.3 ± 4.9;

0.0 [0.0, 5.1]

  ≥ 13 mL/h/kg

53.4 ± 26.7;

50.0 [35.7, 68.8]

43.8 ± 27.2;

42.9 [25.0, 59.4]

36.3 ± 26.7;

33.3 [18.2, 50.0]

  1. aEstimation of weight gains were based on the February 2012 fluid-related weight gain calculation cohort (patient N = 59,953 and facility N = 1752). Values presented as means ± SDs; medians [quartile 1, quartile 3]
  2. Abbreviations: IDWG Interdialytic weight gain, TT Treatment time, UF Ultrafiltration