Table 4 Selected laboratory results for participants in the KIND registry by kidney disease type (n = 2,912)

Systolic blood pressure (mmHg)

 Initial value

135 (123 – 148)

138 (127 – 151)

132.5 (121.5—148.5

136 (124 – 148)

 6 months later

132 (122 – 146)

135 (124—147)

131.5 (115 -149.5)

131 (122—145)

Diastolic blood pressure (mmHg)

 Initial value

77 (69—85)

78.5 (69—86)

76.5 (70—89)

78 (70 – 86)

 6 months later

75 (66—83)

75 (66—84)

78 (69.5—87.5)

76 (67 – 84)

eGFR (mL/min/1.73m2)

 Initial value

33.5 (15—53)

28 (12—49)

19 (10—50)

34 (17—51)

 6 months later

36 (15 – 60)

26 (11—53)

16.5 (8—36)

37 (15.5 -57)

Serum creatinine (U/L)

 Initial value

173 (108—331)

219 (144—438)

205 (120—370)

179 (129—329)

 6 months later

163 (100 – 348)

229 (126—493)

352.5 (156—649)

178.5 (114.5 -395.5)

Serum albumin g/L

 Initial value

34 (28 – 38)

34 (29—38)

35 (28—38)

36 (31—40)

 6 months later

38 (34 – 42)

38 (34 – 42)

37 (33—43)

41 (35—43)

ESR (mm/hr)

 Initial value

48 (24—77)

49 (21—76)

80 (30—120)

33.5 (16 – 70)

 6 months later

40 (24 – 66)

40 (25—77)

24 (19—55)

40 (24—79)

PCR (mg/mg)

 Initial value

5.3 (1.5 -14.9)

4.8 (0.9—12.5)

1.2 (0.5—2.3)

3.1 (0.5—12.2)

 6 months later

3.0 (1.1—12.9)

3.2 (1.2 – 10.0)

0.7 (0.2—1.1)

2.1 (0.4—8.7)

Urea reduction ratio (%)

 Initial value

73 (68—78)

 6 months later

74 (69—79)

Hemoglobin (g/L)

 Initial value

109 (92—127)

100 (86—116.5)

100 (87—116)

107 (93 – 123)

 6 months later

126 (112 – 139)

121 (107 – 135)

114 (100 – 131)

135 (120 – 148)

Corrected calcium (mmol/L)

 Initial value

2.3 (2.2—2.4)

2.2 (2.1—2.3)

2.3 (2.1—2.4)

2.2 (2.1—2.4)

 6 months later

2.3 (2.2—2.4)

2.3 (2.2—2.4)

2.3 (2.2—2.4)

2.3 (2.3—2.4)

Phosphorus (mmol/L)

 Initial value

1.4 (1.1—1.8)

1.5 (1.2—2.0)

1.7 (1.3—2.0)

1.4 (1.1—1.8)

 6 months later

1.3 (1.1—1.5)

1.2 (1.0—1.5)

1.3 (1.1—1.7)

1.2 (1.0—1.3)

Potassium (mmol/L)

 Initial value

4.3 (4.0—4.8)

4.4 (4.0—5.0)

4.3 (3.8—4.8)

4.3 (3.9—4.9)

 6 months later

4.4 (4.0—4.8)

4.5 (4.1—5.0)

4.4 (3.9—4.8)

4.3 (4.0—4.6)

Complement Component 3 (G/L)

 Initial value

1.1 (0.9–1.3)

 6 months later

1.0 (0.8–1.1)

Complement Component 4 (G/L)

 Initial value

0.3 (0.2–0.4)

 6 months later

0.3 (0.2–0.4)

Anti-DNA (IU/mL)

 Initial value

16.0 (8.0–31.0)

 6 months later

15.6 (7.2–34.8)

Perinuclear anti-neutrophil cytoplasmic antibodies (p-ANCA) (U/mL)

 Initial value

2.1 (1.4–3.7)

 6 months later

2.5 (1.4–7.0)

cytoplasmic anti-neutrophil cytoplasmic antibody (cANCA) (U/mL)

 Initial value

2.3 (1.8–3.5)

 6 months later

2.1 (1.3–2.6)

Anti-glomerular basement membrane (Anti-GBM) (U/mL)

 Initial value

1.2 (0.7–2.0)

 6 months later

0.7 (0.3–7.8)

Parathyroid Hormone (PTH) (pmol/L)

 Initial value

46.6 (21.5–97.6)

 6 months later

31.3 (13.6–85.7)

Hepatitis B surface antigen (HBsAg) (%)

 Negative

476 (62.6)

 Positive

12 (1.6)

 Unknown

273 (35.9)

Hepatitis C (HCV) (%)

 Negative

445 (58.5)

 Positive

28 (3.7)

 Unknown

288 (37.8)

Human immunodeficiency virus (HIV) (%)

 Negative

22 (2.9)

 Positive

1 (0.1)

 Unknown

738 (97.0)

Dialysis details

 Average number of dialysis sessions/ week (± SD)

3.0 (0.2)

 Average number of hours/ dialysis session (± SD)

3.6 (0.4)