Table 2. Demographic characteristics of those who are alive or dead at different landmark.
| Variable | Died less than 3 months on PD (n = 31) | Survived the first 3 months on PD (n = 1688) | P value | Died during 3 to 24 months on PD (n = 163) | Survived the first 24 months on PD (n = 1208) | P value |
|---|---|---|---|---|---|---|
| Age (years) | 64.9 ± 17.0 | 47.2 ± 15.4 | <0.001 | 61.3 ± 14.2 | 47.0 ± 14.6 | <0.001 |
| Male gender (%) | 13 (41.9) | 1006 (59.6) | 0.047 | 86 (52.8) | 700 (57.9) | 0.209 |
| Body mass index (kg/m2) | 22.4 ± 3.1 | 21.5 ± 3.1 | 0.296 | 21.8 ± 3.4 | 21.5 ± 3.0 | 0.242 |
| Diabetes (%) | 8 (25.8) | 429 (25.4) | 0.960 | 89 (54.6) | 296 (24.5) | <0.001 |
| CVD (%) | 16 (51.6) | 663 (39.3) | 0.164 | 112 (68.7) | 451 (37.3) | <0.001 |
| Comorbidity score | 6 (4–8) | 3 (2–5) | <0.001 | 6 (4–7) | 3 (2–5) | <0.001 |
| 24 h urine output (ml) | 825 (505–1288) | 1000 (600–1500) | 0.324 | 700 (300–1100) | 1000 (600–1500) | <0.001 |
| mGFR (ml/min per 1.73 m2) | 5.4 (4.2–6.9) | 6.5 (5.0–8.5) | 0.011 | 7.2 (5.2–9.5) | 6.5 (5.1–8.5) | 0.034 |
| Systolic pressure (mmHg) | 139 ± 20 | 136 ± 20 | 0.427 | 135 ± 21 | 136 ± 20 | 0.497 |
| Diastolic pressure (mmHg) | 76 ± 14 | 84 ± 14 | 0.003 | 76 ± 15 | 84 ± 14 | <0.001 |
| Hemoglobin (g/dl) | 7.6 ± 2.0 | 10.2 ± 2.0 | <0.001 | 9.5 ± 2.1 | 10.3 ± 2.0 | <0.001 |
| WBC (109/L) | 7.5 (6.2–12.0) | 6.6 (5.3–8.0) | 0.001 | 7.4 (6.3–8.9) | 6.5 (5.3–8.0) | <0.001 |
| N/L | 4.63 (2.45–9.91) | 2.83 (2.13–3.85) | <0.001 | 3.48 (2.40–4.75) | 2.76 (2.12–3.72) | <0.001 |
| Albumin (g/dl) | 3.0 ± 0.7 | 3.7 ± 0.5 | <0.001 | 3.4 ± 0.5 | 3.7 ± 0.5 | <0.001 |
| ALT (U/L) | 22 (16–28) | 14 (10–22) | <0.001 | 14 (10–19) | 14 (10–22) | 0.366 |
| AST (U/L) | 13 (8–22) | 19 (15–25) | 0.001 | 17 (15–23) | 19 (15–25) | 0.147 |
| ALP (U/L) | 90 (56–120) | 70 (56–88) | 0.060 | 77 (62–102) | 70 (56–88) | 0.001 |
| Calcium (mg/dl) | 8.25 ± 0.98 | 9.05 ± 0.92 | <0.001 | 8.90 ± 0.97 | 9.06 ± 0.92 | 0.039 |
| Phosphorus (mg/dl) | 5.51 ± 1.95 | 4.37 ± 1.35 | 0.004 | 4.44 ± 1.80 | 4.30 ± 1.29 | 0.354 |
| iPTH (pg/ml) | 270 (145–520) | 221 (97–401) | 0.101 | 161 (49–360) | 240 (105–409) | 0.001 |
| Urea nitrogen (mg/dl) | 136 (106–177) | 94 (76–118) | <0.001 | 89 (67–113) | 94 (76–116) | 0.067 |
| Creatinine (mg/dl) | 8.4 (6.3–9.6) | 7.9 (6.3–10.0) | 0.830 | 6.6 (5.5–8.7) | 7.7 (6.3–9.7) | <0.001 |
| Total cholesterol (mg/dl) | 178 (152–230) | 193 (162–224) | 0.413 | 197 (155–241) | 193 (166–224) | 0.529 |
| Triglyceride (mg/dl) | 127 (97–244) | 124 (89–178) | 0.166 | 140 (99–223) | 123 (88–174) | 0.001 |
| HDL (mg/dl) | 33.3 (24.0–40.6) | 45.6 (37.1–56.7) | <0.001 | 41.4 (32.3–52.2) | 46.4 (37.9–57.2) | <0.001 |
| LDL (mg/dl) | 104.0 (91.3–138.4) | 109.8 (87.0–133.4) | 0.985 | 111.4 (82.1–146.8) | 110.2 (88.2–133.8) | 0.479 |
| Uric acid (mg/dl) | 7.95 ± 2.70 | 7.10 ± 1.94 | 0.105 | 6.71 ± 1.65 | 7.10 ± 2.02 | 0.021 |
Abbreviations: ALP, alkaline phosphatase; ALT, alanine aminotransferase; AST, aspartate aminotransferase; CVD, cardiovascular disease; HDL, high density lipoprotein; iPTH, intact parathyroid hormone; LDL, low density lipoprotein; mGFR, measured glomerular filtration rate; N/L, neutrophil to lymphocyte ratio; PD, peritoneal dialysis; WBC, white blood cell. The boldface indicated that P values less than 0.05 are considered statistically significant.