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Table 2 Comparison between demographic, clinical and laboratory variables at study enrolment in patients with a high and a low coronary calcium score

From: Coronary calcification as a predictor of cardiovascular mortality in advanced chronic kidney disease: a prospective long-term follow-up study

Variable CaCs ≥400 HU (n = 84) CaCs < 400 HU (n = 53) p
Age (years) 65.2 (±11.7) 56.3 (±14.9) < 0.001*
Haemodialysis vintage (months) 56.2 (±65.1) 29.8 (±43.8) 0.025*
Haemodialysis (%) 71.1 (n = 59) 28.9 (n = 24) 0.004
Hypertension (%) 62 (n = 76) 38 (n = 46) 0.58
Diabetes mellitus (%) 83.8 (n = 32) 16.2 (n = 6) < 0.001
Smoker (%) 66.7 (n = 20) 33.3 (n = 10) 0.10
Previous stroke event (%) 15 (n = 12) 5.8 (n = 3) 0.16
Previous cardiologic event (%) 88.2 (n = 31) 11.2 (n = 4) < 0.001
Antiplatelet use (%) 81.2 (n = 39) 18.8 (n = 9) < 0.001
Calcium salt use (%) 63.4 (n = 46) 36.6 (n = 26) 0.59
Phosphate binder use (%) 48.8 (n = 40) 31.4 (n = 15) 0.07
Vitamin D use (%) 64.8 (n = 47) 35.2 (n = 25) 0.37
Cholesterol (mg/dl) 170 (±39.6) 183 (±49.1) 0.085
LDL- cholesterol (mg/dl) 87.8 (±36.7) 101 (±40.2) 0.12
HDL-cholesterol (mg/dl) 43.1 (±11.1) 44.1 (±11.6) 0.72
Triglycerides (mg/dl) 177 (±107) 145 (±87.4) 0.01*
Uric acid (mg/dl) 6.97 (±1.59) 7.01 (±1.48) 0.89
HbA1c (%) 6.69 (±1.69) 6.17 (±1.41) 0.39
Albumin (g/dl) 3.94 (±0.41) 4.21 (±0.43) 0.001
eGFR (ml/min/m2) 12.3 (±9.65) 16.8 (±10.9) 0.045*
Creatinine (mg/dl) 7.58 (±3.75) 6.48 (±3.77) 0.01*
Urea (mg/dl) 152 (±48.9) 150 (±49.8) 0.75
Phosphorous (mg/dl) 4.87 (±1.32) 4.85 (±1.58) 0.39*
Calcium (mg/dl) 9.35 (±0.7) 9.41 (±0.75) 0.65
Calcium - phosphorus product 45.3 (±12.1) 45.6 (±15.4) 0.48*
Bicarbonate (mmol/l) 19.7 (±5.09) 19.3 (±4.83) 0.62
Intact PTH (pg./ml) 333 (±414) 324 (±326) 0.52*
TSH (uIU/ml) 4.52 (±10.9) 1.8 (±1.1) 0.48*
C-reactive protein (mg/l) 15.7 (±27.6) 12.8 (±23.4) 0.43*
  1. *Kruskal-Wallis test, as appropriate