Table 4. Frequency and median time to the first episode of peritonitis according to clinical factors.
| Variable | N | First PeritonitisFrequency (%) | Median Time to theFirst Episode ofPeritonitis (months) | P value |
| Diabetes | ||||
| No | 864 | 242(28.0) | 13.0 | |
| Yes | 253 | 67(26.5) | 15.3 | 0.959 |
| Cardiovascular disease | ||||
| No | 819 | 222(27.1) | 13.4 | |
| Yes | 298 | 87(29.2) | 13.1 | 0.357 |
| Hypertension | ||||
| No | 797 | 216(27.1) | 13.4 | |
| Yes | 320 | 93(29.1) | 13.1 | 0.374 |
| Malignancy | ||||
| No | 1092 | 301(27.6) | 13.4 | |
| Yes | 25 | 8(32.0) | 7.0 | 0.406 |
| BMI(kg/m2) | ||||
| <18.5 | 177 | 52(29.4) | 22.5 | 0.962 |
| 18.5–24.9 | 761 | 215(28.3) | 11.6 | |
| 25–29.9 | 110 | 32(29.1) | 8.0 | 0.704 |
| ≥30 | 14 | 2(14.3) | 12.7 | 0.341 |
| Ca×P | ||||
| <55 | 930 | 260(28.0) | 14.0 | |
| ≥55 | 143 | 42(29.4) | 5.9 | 0.827 |
| Hemoglobin(g/l) | ||||
| ≥110 | 400 | 100(25.0) | 15.9 | |
| <110 | 679 | 194(28.6) | 13.1 | 0.081 |
| Potassium (mmol/L) | ||||
| ≥3.5 | 686 | 177(25.8) | 11.8 | |
| <3.5 | 400 | 127(31.8) | 16.0 | 0.123 |
| Serum albumin(g/L) | ||||
| ≥38 | 567 | 139(24.5) | 13.4 | |
| <38 | 500 | 160(32.0) | 13.8 | 0.000 |
| Residual urine | ||||
| ≥100 | 797 | 221(27.7) | 15.3 | |
| <100 | 31 | 11(35.5) | 14.6 | 0.201 |
| nPCR(g/kg/d) | ||||
| ≥0.8 | 581 | 158(27.2) | 16.1 | |
| <0.8 | 232 | 65(28.0) | 11.1 | 0.632 |
| Weekly Kt/V | ||||
| ≥1.7 | 720 | 201(27.9) | 14.2 | |
| <1.7 | 95 | 22(23.2) | 23.7 | 0.653 |