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Table 1 Demographic and clinical baseline data for the study patients (n = 252), according to physical and mental component summary-36 score quartiles

From: Mortality and health-related quality of life in prevalent dialysis patients: Comparison between 12-items and 36-items short-form health survey

 

All patients

Physical component summary-36 score quartiles

Mental component summary-36 score quartiles

  

Q1 Range: 9.6-30.0

Q2 Range: 30.1-35.6

Q3 Range: 35.7-44.4

Q4 Range: 44.5–58.2

P -value

Q1 Range: 16.9-39.2

Q2 Range: 39.3-49.0

Q3 Range: 49.1-55.6

Q4 Range: 55.7-70.7

P - value

N

252

63

63

63

63

 

63

63

63

63

 

Age, yrs, (252)

60.2±15.5

60.8±12.4

64.8±14.9

58.1±17.3

57.2±16.0

0.027p

56.5±15.7

63.7±15.3

60.0±17.0

60.6±13.0

0.071p

Male gender,%, (n=252)

65.9 (166)

58.7 (37)

68.3 (43)

69.8 (44)

66.7 (42)

0.5632

61.9 (39)

68.3 (43)

77.8 (49)

55.6 (35)

0.0562

Current smoker, %, (n=252)

25.8 (65)

33.3 (21)

23.8 (15)

22.2 (14)

23.8 (15)

0.466 2

39.7 (25)

22.2 (14)

19.0 (12)

22.2 (14)

0.0342

Work status, %, (n)

Able to work, (n=235)

12.3 (29)

8.5 (5)

5.2 (3)

12.1 (7)

23.3 ( 14)

0.016 2

6.7 (4)

15.3 (9)

12.7 (7)

14.8 (9)

0.4602

Disable to work, (n=235)

51.5 (121)

64.4 (38)

43.1 (25)

50.0 (29)

48.3 (29)

0.118 2

65.0 (39)

35.6 (21)

47.3 (26)

57.4 (35)

0.0092

Retired, (n=235)

36.2 (85)

27.1 (16)

51.7 (30)

37.9 (22)

28.3 (17)

0.02 2

28.3 (17)

49.2 (29)

40.0 (22)

27.9 (17)

0.0452

Cause of renal failure, %, (n)

Glomerulonephritis, (n=249)

20.5 (51)

14.3 (9)

20.6 (13)

19.4 (12)

27.9 (17)

0.311 2

20.6 (13)

12.7 (8)

26.7 (16)

22.2 (14)

0.2762

Diabetic nephropathy, (n=249)

14.1 (35)

22.2 (14)

6.3 (4)

16.1 (10)

11.5 (7)

0.068 2

15.9 (10)

14.3 (9)

16.7 (10)

9.5 (6)

0.6632

Hypertensive kidney disease, (n=249)

24.9 (62)

25.4 (16)

25.4 (16)

27.4 (17)

21.3 (13)

0.886 2

25.4 (16)

25.4 (16)

23.3 (14)

25.4 (16)

0.9912

Other, (n=249)

40.6 (101)

38.1 (24)

47.6 (30)

37.1 (23)

39.3 (24)

0.613 2

38.1 (24)

47.6 (30)

33.3 (20)

42.9 (27)

0.4082

Clinical variables

Dialysis vintage, mo, (n=251)

9.0 (5.0, 23.0)

18.0 (6.0, 34.0)

9.0 (4.0, 20.0)

9.0 (5.0, 20.0)

7.0 (3.4, 16.8)

0.004np

10.0 (4.0, 23.0)

11.0 (5.0, 32.0)

10.0 (5.0, 17.3)

7.0 (4.0, 24.0)

0.352np

Previous graft failure, (251)

18.7 (47)

24.2 (15)

11.1 (7)

19.0 (12)

20.6 (13)

0.287 2

22.2 (14)

17.5 (11)

21.0 (13)

14.3 (9)

0.6612

Accepted for renal transplantation, (n=252)

38.1 (96)

28.6 (18)

27.0 (17)

49.2 (31)

47.6 (30)

0.012

36.5 (23)

33.3 (21)

42.9 (27)

39.7 (25)

0.7182

Peritoneal dialysis, (n=252)

20.2 (51)

23.8 (15)

14.3 (9)

27.0 (17)

15.9 (10)

0.221 2

14.3 (9)

19.0 (12)

31.7 (20)

15.9 (10)

0.0622

Body mass index, kg/m2, (n=235)

24.9±4.9

23.6±5.0

25.5±4.8

24.9±4.6

25.5±5.0

0.135p

23.7±4.5

25.2±4.4

25.0±4.6

25.9±5.8

0.124p

Serum albumin, g/l, (n=246)

38.0±4.8

36.6±5.9

37.7±4.4

38.4±4.3

39.1±4.0

0.022p

38.7±3.9

37.8±4.4

38.1±5.5

37.4±5.2

0.503p

Hemoglobin, g/dl, (n=246)

12.1±1.5

12.0±1.4

12.1±1.5

12.2±1.5

12.2±1.4

0.87p

11.8±1.6

12.1±1.3

12.4±1.5

12.2±1.3

0.139p

Total cholesterol, mmol/L, (n=230)

4.2±1.1

4.0±1.2

4.1±1.1

4.5±1.1

4.2±1.1

0.103p

4.3±1.2

4.0±1.0

4.2±1.2

4.3±1.1

0.279p

Comorbidity

Diabetes, %, (n=250)

26.4 (66)

31.7 (20)

28.6 (18)

24.2 (15)

21.0 (13)

0.537 2

30.2 (19)

33.3 (21)

27.9 (17)

14.3 (9)

0.0772

CCI without age, (n=248)

4 (2, 5)

5 (4, 6)

4 (2, 4)

3 (2, 5)

3 (2, 4)

<0.001np

4 (3, 5)

4 (3, 5)

4 (2, 5)

3 (2, 5)

0.436np

  1. CCI Charlson modified comorbidity index. Continuous variables are given as mean ± SD, when normally distributed, or as median (IQR), when skewed. P-values between the four groups are calculated based on parametric (ANOVA)p , nonparametric (Kruskall Wallis)np, or Chi-squared2 statistics. Note: Numbers of complete data are given in parentheses for each variable.