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Table 1 Baseline characteristics of Norwegian patients starting peritoneal- or hemodialysis as initial renal replacement therapy in the period 2005–2012

From: Impact of initial dialysis modality on mortality: a propensity-matched study

 

All

Unmatched HD

Matched HD

PD

p-values

(n = 3089)

(n = 2407)

(n = 682)

(n = 682)

PD vs. unmatched HD

PD vs. matched HD

Age (years)

64.8 (15.3)

64.9 (15.4)

65.2 (15.0)

64.6 (15.2)

NS

NS

Male gender (%)

67.2

67.3

67.0

66.7

NS

NS

County

    

<0.001

NS

Renal diagnosis

    

<0.001

NS

BMI kg/m2

25.9 (5.2)

26.1 (5.5)

25.5 (5.1)

25.4 (4.2)

0.001

NS

eGFR ml/min/1.73 m2

8.3 (3.2)

8.2 (3.2)

9.0 (3.4)

8.8 (3.1)

<0.001

NS

Hb g/dl

10.6 (1.6)

10.4 (1.6)

11.2 (1.5)

11.3 (1.4)

<0.001

NS

Albumin g/l

34.9 (6.7)

34.0 (6.7)

37.8 (5.5)

38.0 (5.7)

<0.001

NS

Prev comorbidities

      

DM (%)

32.1

32.9

30.6

29.3

NS

NS

Heart disease (%)

31.6

33.1

30.5

26.5

0.001

NS

LVH (%)

31.3

32.2

28.9

28.2

0.044

NS

CVD (%)

13.9

14.5

12.0

11.9

NS

NS

PAD (%)

20.2

21.2

18.0

16.6

0.008

NS

Malignancy (%)

10.0

11.3

5.4

5.7

<0.001

NS

Medications

      

Number of BP medication (%)

    

<0.001

NS

 0

10.1

11.8

3.2

4.1

  

 1

12.6

12.8

12.0

12.0

  

 2

22.5

22.3

22.4

23.3

  

 3

29.4

28.6

33.3

32.3

  

 4

17.3

16.5

20.1

19.9

  

 >4

8.1

8.1

8.9

8.4

  

Statin (%)

54.0

52.3

61.1

60.3

0.001

NS

Vitamin D (%)

59.1

55.6

70.4

71.4

<0.001

NS

ESA (%)

59.0

55.9

70.8

70.1

<0.001

NS

Known by nephrologist (%)

74.2

69.4

91.1

91.1

<0.001

NS

RTX candidate (%)

59.8

57.0

68.3

69.5

<0.001

NS

Follow-up time (months)

12 (0–92)

 

13.0 (0–89)

10.0 (0–73)

 

<0.001

  1. Continuous data are shown as mean ± SD, median (range) if skewed, and categorical data as percentages.
  2. BMI: Body mass index, County: Patients were categorized due to situation in 19 counties in Norway, CVD: cerebrovascular disease, Diagnosis: patients were categorized due primary renal diagnosis defined by ERA-EDTA primary renal disease codes, DM: diabetes mellitus, ESA: erythropoiesis stimulating agents, Follow-up time: As-treated follow-up time prior to censoring or death, Heart disease: previous diagnosis of coronary heart disease or heart failure, Known by nephrologist: treated by nephrologist > 4 months prior to dialysis initiation, LVH: left ventricular hypertrophy, Malignancy: previous diagnosis of malignant disease, PAD: peripheral artery disease, RTX candidate: considered suitable for future renal transplantation by treating nephrologist, vitamin D: supplementation with active vitamin D or paricalcitol