Table 1 Characteristics of adult non-indigenous Australian patients who commenced renal replacement therapy (2000–2010) and underwent PD at some stage
Factor | Major city | Inner regional | Outer regional | Remote | p-value |
|---|---|---|---|---|---|
N | 5285 | 1503 | 731 | 138 | |
Age, median (IQR) | 63 (50, 72) | 64 (52, 71) | 64 (52, 72) | 64 (51, 72) | 0.64 |
Male | 57.8% | 57.7% | 59.2% | 60.9% | 0.80 |
Body mass index (kg/m2) | <0.001 | ||||
Underweight (<18.5) | 4.2% | 2.5% | 3.4% | 1.4% | |
Normal (18.5–24.9) | 40.3% | 38.9% | 37.2% | 43.5% | |
Overweight (25–29.9) | 33.9% | 34.0% | 36.6% | 22.5% | |
Obese (> = 30) | 21.6% | 24.5% | 22.7% | 32.6% | |
Chronic lung disease | 13.7% | 15.9% | 14.1% | 21.0% | 0.02 |
Coronary artery disease | 34.7% | 34.9% | 32.1% | 33.3% | 0.60 |
Peripheral vascular disease | 20.0% | 20.7% | 17.8% | 22.5% | 0.30 |
Cerebrovascular disease | 14.3% | 15.6% | 13.3% | 16.7% | 0.40 |
Diabetes | 40.2% | 32.5% | 33.9% | 33.3% | <0.001 |
Primary renal disease | <0.001 | ||||
Glomerulonephritis | 1422 (26.9%) | 430 (28.6%) | 184 (25.2%) | 34 (24.6%) | |
Diabetes | 1633 (30.9%) | 341 (22.7%) | 176 (24.1%) | 38 (27.5%) | |
Hypertension | 523 (9.9%) | 149 (9.9%) | 78 (10.7%) | 25 (18.1%) | |
Polycystic | 313 (5.9%) | 103 (6.9%) | 47 (6.4%) | 8 (5.8%) | |
Reflux | 243 (4.6%) | 75 (5.0%) | 26 (3.6%) | 6 (4.3%) | |
Other | 1151 (21.8%) | 405 (26.9%) | 220 (30.1%) | 27 (19.6%) | |
Late referral | 21.2% | 23.4% | 24.2% | 25.4% | 0.10 |
Current smoking | 10.6% | 12.0% | 13.7% | 14.5% | 0.03 |
Race | <0.001 | ||||
Caucasian | 77.4% | 97.0% | 94.7% | 94.2% | |
Asian | 12.9% | 1.7% | 3.1% | 2.2% | |
Other | 9.7% | 1.3% | 2.2% | 3.6% | |
Creatinine (umol/L) at entry, median (IQR) | 631 (490, 827) | 635 (490, 813) | 673 (536, 855) | 729 (540, 910) | <0.001 |
PD at commencement of dialysis | 3446 (65.2%) | 1002 (66.7%) | 433 (59.2%) | 82 (59.4%) | 0.002 |
PD facility size (incident patients in study period) | <0.001 | ||||
1–49 patients | 139 (2.6%) | 86 (5.7%) | 53 (7.3%) | 26 (18.8%) | |
50–199 patients | 314 (5.9%) | 488 (32.5%) | 266 (36.4%) | 32 (23.2%) | |
200+ patients | 4829 (91.4%) | 929 (61.8%) | 412 (56.4%) | 80 (58.0%) | |
Peritonitis cases per year (Poisson mean and 95%CI) | 0.55 (0.53–0.56) | 0.55 (0.51–0.58) | 0.59 (0.54–0.64) | 0.71 (0.59–0.84) | 0.014 |
Time per patient spent on PD in months, median (IQR) | 16.4 (7.1–29.3) | 15.8 (7.7–29.3) | 17.0 (7.6–27.8) | 17.0 (7.8–31.7) | 0.81 |