Table 1.

Demographic characteristics of the study population

CharacteristicAgatston Score
<100100 to 400>400P
Age (yr)0.03a
    N19811
    mean (SD)45.2 (15.2)59.8 (14.9)57.2 (15.1)
    median (min, max)45 (21, 74)59 (39, 76)57 (37, 78)
Cholesterol (g/L)0.44a
    N19811
    mean (SD)1.70 (0.3)1.6 (0.2)1.5 (0.2)
    median (min, max)1.7 (1.2, 2.4)1.6 (1.2, 2.0)1.5 (1.2, 2.0)
Calcium (mg/dl)0.35a
    N19811
    mean (SD)96 (6.6)94 (6.2)98 (5.7)
    median (min, max)95.4 (87, 111)93.6 (85, 104)100 (87, 105)
Phosphorus (mg/dl)0.08a
    N19811
    mean (SD)5.4 (0.9)4.6 (0.8)5.0 (0.7)
    median (min, max)5.5 (3.9, 7.2)4.8 (3.2, 5.3)5.0 (3.8, 6.3)
iPTHc (pg/ml)0.47a
    N19811
    mean (SD)620 (614)293 (167)570 (700)
    median (min, max)353.4 (50, 2164)259 (155, 679)301 (100, 2572)
25-(OH)-vitamin D (ng/ml)0.78a
    N19811
    mean (SD)21.2 (7.8)19.5 (6.2)20.2 (10.0)
    median (min, max)21.5 (7.8, 37.6)17.5 (13.5, 27.8)14.6 (11.0, 41.4)
Dialysis duration (mo)0.48a
    N19811
    mean (SD)73.1 (56.6)44.9 (23)87.2 (77.2)
    median (min, max)48.3 (21, 206)39.5 (19, 77)45 (23, 242)
Gender0.27b
    N19811
    male (N, %)9 (47.3)3 (37.5)8 (72.7)
    female (N, %)10 (52.6)5 (62.5)3 (27.3)
Tobacco use0.88b
    N19811
    yes (N, %)4 (21.0)1 (12.5)3 (27.3)
    no (N, %)15 (79.0)7 (87.5)8 (72.7)
Hypertension0.63b
    N19811
    yes (N, %)11 (57.9)4 (50.0)8 (72.7)
    no (N, %)8 (42.1)4 (50.0)3 (27.3)
  • a P value computed from Kruskal–Wallis test.

  • b P value computed from Fisher's exact test.

  • c iPTH, immunoreactive parathyroid hormone.