Table 5 Comparison of variables before and after propensity score matching in type IV and type V groups
Variable | Before matching | After matching | ||||
|---|---|---|---|---|---|---|
IV | V | P value | IV | V | P value | |
n (%male) | 97,927 (62.1) | 68,480 (71.2) | < 0.0001 | 39,351 (69.4) | 39,351 (69.4) | 0.914 |
Age, years | 70.9 ± 11.8 | 66.2 12.1 | < 0.0001 | 67.5 ± 11.8 | 67.5 ± 11.3 | 0.465 |
Vintage, months | 61 (28–121) | 79 (38–145) | < 0.0001 | 74 (36–140) | 76 (37–141) | 0.272 |
Diabetes mellitus, % | 54.2 | 53.9 | 0.063 | 52.8 | 53.1 | 0.443 |
Comorbid CVD, % | 35.2 | 31.7 | < 0.0001 | 34.1 | 34.1 | 0.988 |
Systolic BP, mmHg | 150 ± 25 | 152 ± 24 | < 0.0001 | 152 ± 24 | 152 ± 24 | 0.547 |
Diastolic BP, mmHg | 76 ± 14 | 79 ± 15 | < 0.0001 | 79 ± 14 | 79 ± 14 | 0.548 |
Heart rate, bpm | 74 ± 13 | 75 ± 13 | < 0.0001 | 75 ± 13 | 75 ± 13 | 0.656 |
BMI, kg/m2 | 21.3 ± 3.9 | 22.3 ± 4.2 | < 0.0001 | 22.1 ± 3.9 | 22.1 ± 3.9 | 0.766 |
Serum UN, mg/dL | 59.6 ± 15.8 | 61.4 ± 15.4 | < 0.0001 | 61.0 ± 15.2 | 61.0 ± 15.2 | 0.486 |
Creatinine, mg/dL | 9.4 ± 2.8 | 10.6 ± 2.7 | < 0.0001 | 10.3 ± 2.6 | 10.3 ± 2.6 | 0.749 |
β2MG, mg/L | 26.9 ± 6.9 | 27.3 ± 6.3 | < 0.0001 | 27.2 ± 6.4 | 27.2 ± 6.4 | 0.709 |
Kt/V | 1.47 ± 0.31 | 1.49 ± 0.30 | < 0.0001 | 1.49 ± 0.29 | 1.49 ± 0.30 | 0.557 |
Serum albumin, g/dL | 3.5 ± 0.5 | 3.6 ± 0.4 | < 0.0001 | 3.6 ± 0.4 | 3.6 ± 0.4 | 0.612 |
Hemoglobin, g/dL | 10.8 ± 1.3 | 10.9 ± 1.3 | < 0.0001 | 10.9 ± 1.2 | 10.9 ± 1.2 | 0.860 |
CRP, mg/dL | 0.16 (0.06–0.50) | 0.14 (0.05–0.41) | < 0.0001 | 0.14 (0.06–0.41) | 0.13 (0.05–0.40) | 0.922 |
Calcium, mg/dL | 8.7 ± 0.7 | 8.7 ± 0.7 | < 0.0001 | 8.7 ± 0.7 | 8.7 ± 0.7 | 0.120 |
Phosphate, mg/dL | 5.1 ± 1.4 | 5.3 ± 1.5 | < 0.0001 | 5.3 ± 1.4 | 5.3 ± 1.4 | 0.226 |
Intact-PTH, pg/mL | 127 (69–205) | 136 (77–215) | < 0.0001 | 133 (74–210) | 135 (77–212) | 0.114 |
nPCR, g/kg/day | 0.84 ± 0.18 | 0.86 ± 0.17 | < 0.0001 | 0.86 ± 0.17 | 0.86 ± 0.17 | 0.270 |