Table 1 Comparison of demographic and laboratory characteristics of peritonitis and nonperitonitis groups
Clinical characteristics and laboratory parameters | All patients (n = 278) | Peritonitis (n = 44) | Nonperitonitis (n = 234) | p |
|---|---|---|---|---|
Age (years) | 48.61 ± 13.63 | 54.57 ± 12.25 | 47.49 ± 13.61 | 0.001 |
Number of males (n, %) | 159 (57.2) | 25 (56.8) | 134 (57.3) | 0.956 |
PD duration (month) | 21 (10–40.25) | 18.5 (8–37.5) | 23 (10–41) | 0.516 |
Low education (n, %) | 63 (22.7) | 27 (61.4) | 36 (15.4) | < 0.001 |
Hypertension (n, %) | 228 (82) | 36 (81.8) | 192 (82.1) | 0.971 |
Diabetes mellitus (n, %) | 47 (16.9) | 23 (52.3) | 24 (10.3) | < 0.001 |
BMI | ||||
- Mean | 21.16 ± 2.93 | 22.15 ± 3.43 | 20.97 ± 2.79 | 0.036 |
- < 18.5 | 46 (16.5) | 5 (11.4) | 41 (17.5) | |
- 18.5–22.9 | 168 (60.4) | 21 (47.7) | 147 (62.8) | 0.009 |
- ≥ 23 | 64 (23) | 18 (40.9) | 46 (19.7) | |
- Min – Max | 14.4–33.3 | 15.4–31.2 | 14.4–33.3 | N/A |
OH (L) | 1.27 ± 0.18 | 1.49 ± 0.21 | 1.23 ± 0.14 | < 0.001 |
-24 h urine volume (ml) | 180 (130–500) | 195 (146.25–637.5) | 175 (128.75–500) | 0.12 |
- Loss of RKF (n, %) | 200 (71.9) | 28 (63.6) | 172 (73.5) | 0.181 |
- Preservation of RKF (n, %) | 78 (28.1) | 16 (36.5) | 62 (26.5) | |
PET | ||||
- Mean (D4/P) | 0.7 ± 0.08 | 0.73 ± 0.08 | 0.7 ± 0.08 | 0.024 |
- H (n, %) | 20 (7.2) | 6 (13.6) | 14 (6) | |
- HA (n, %) | 175 (62.9) | 28 (63.6) | 147 (62.8) | 0.236 |
- LA (n, %) | 80 (28.8) | 10 (22.7) | 70 (29.9) | |
- L (n, %) | 3 (1.1) | 0 (0) | 3 (1.3) | |
Blood urea (mmol/L) | 19.29 ± 6.11 | 19.16 ± 6.89 | 19.31 ± 5.97 | 0.88 |
Creatinine (μmol/L) | 772.16 (654.9–955.8) | 738.97 (608.43–946.95) | 778.8 (657.55–961.99) | 0.372 |
Kt/V | 1.98 ± 0.3 | 2.00 ± 0.31 | 1.97 ± 0.3 | 0.597 |
Total CCr (L/week/1.73m2) | 62.65 ± 9.3 | 63.13 ± 9.57 | 62.57 ± 9.27 | 0.713 |
Hemoglobin | ||||
- Mean (g/L) | 100.55 ± 16.9 | 95.98 ± 15.06 | 101.41 ± 17.12 | 0.051 |
- Anemia (n, %) | 265 (95.3) | 43 (97.7) | 222 (94.9) | 0.41 |
WBC (g/L) | 6.86 ± 1.48 | 6.94 ± 1.37 | 6.85 ± 1.5 | 0.711 |
Neutrophils (%) | 61.38 ± 8.44 | 61.29 ± 10.77 | 61.39 ± 7.96 | 0.94 |
hs-CRP (mg/L) | 2 (1–4) | 3.95 (2–5.27) | 2 (1–3.7) | < 0.001 |
Glucose (mmol/L) | 4.22 (3.77–4.83) | 4.47 (3.94–5.34) | 4.16 (3.76–4.79) | 0.024 |
Uric acid (μmol/L) | 414.63 ± 83.78 | 427.04 ± 101.02 | 412.3 ± 80.16 | 0.285 |
Na + (mmol/L) | 136.93 ± 3.76 | 136.17 ± 3.38 | 137.07 ± 3.81 | 0.145 |
K+ (mmol/L) | 3.67 ± 0.78 | 3.52 ± 0.58 | 3.7 ± 0.81 | 0.164 |
Ca++ (mmol/L) | 2.05 ± 0.29 | 2.04 ± 0.23 | 2.05 ± 0.31 | 0.83 |
Protein (g/dL) | 6.51 ± 0.69 | 6.45 ± 0.8 | 6.53 ± 0.67 | 0.515 |
Albumin (g/dL) | 3.69 ± 0.48 | 3.36 ± 0.61 | 3.75 ± 0.42 | < 0.001 |
Prealbumin (mg/dL) | 34.35 ± 8.49 | 26.34 ± 5.54 | 35.86 ± 8.1 | < 0.001 |