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Patients with peritonitis (n=23)
|
Patients without peritonitis (n=67)
|
p-value
|
|---|
|
Sex (male, %)
|
60.9
|
58.0
|
0.921
|
|
Age at PD initiation (median, years)
|
64 [54–80]
|
64 [52–70]
|
0.426
|
|
Performance status at PD initiation (0-4) (n)
|
0 (16)
|
0 (60)
|
N/A
|
|
1 (5)
|
1 (7)
|
|
2 (1)
|
2(0)
|
|
3 (1)
|
3(0)
|
|
4(0)
|
4(0)
|
|
Diabetes* (%)
|
43.5
|
53.6
|
0.331
|
|
Hypertension (%)
|
29.6
|
70.4
|
0.003
|
|
Serologic tests time-average concentration
|
|
Albumin* (median, g/dL)
|
3.6 [2.7–3.8]
|
3.6 [3.4–3.8]
|
0.597
|
|
Potassium* (median, mEq/L)
|
4.2 [3.8–4.7]
|
4.1 [3.9–4.4]
|
1.000
|
|
Magnesium (median, mg/dL)
|
2.1 [1.9–2.2]
|
2.1 [1.9–2.3]
|
0.441
|
|
Corrected calcium (median, mg/dL)
|
9.3 [8.8–9.5]
|
9.0 [8.7–9.4]
|
0.204
|
|
Inorganic phosphorus (median, mg/dL)
|
5.1 [4.6–5.9]
|
5.0 [4.7–5.3]
|
0.224
|
|
Intact PTH (median, pg/mL)
|
288 [201–369]
|
253 [163–350]
|
0.378
|
|
Use of medications
|
|
RAS blocker (%)
|
35.0
|
65.7
|
0.002
|
|
Calcium channel blocker (%)
|
55.0
|
74.6
|
0.036
|
|
Diuretic (%)
|
80.0
|
88.1
|
0.258
|
|
Oral vitamin D* (%)
|
55.0
|
74.6
|
0.036
|
|
Dose of oral vitamin D (μg/day)
|
0.49±0.21
|
0.38±0.20
|
0.011
|
|
Vitamin D started with SHPTH (%)
|
100.0
|
89.6
|
0.035
|
|
Phosphate binder (%)
|
77.5
|
88.1
|
0.148
|
|
Precipitated calcium carbonate (%)
|
55.0
|
73.1
|
0.055
|
|
Non-calcium-containing phosphate binder (%)
|
50.0
|
50.8
|
0.941
|
|
Calcimimetics (%)
|
17.5
|
16.4
|
0.885
|
|
Laxative* (%)
|
15.0
|
25.4
|
0.206
|
|
Erythropoiesis-stimulating agent (%)
|
95.0
|
89.6
|
0.326
|
|
Immunosuppressant* (%)
|
2.5
|
6.0
|
0.411
|
|
Other factors
|
|
PD against patient’s choice* (%)
|
4.2
|
4.5
|
0.446
|
|
Smoking history* (%)
|
34.8
|
49.3
|
0.229
|
|
Indoor pet breeding* (%)
|
17.4
|
16.4
|
0.914
|
|
Psychiatric disorder* (%)
|
17.4
|
3.0
|
0.017
|
|
Public assistance* (%)
|
4.3
|
3.0
|
0.753
|
|
Assisted PD (%)
|
17.4
|
3.0
|
0.017
|
|
Use of exchange devise (%)*
|
95.7
|
71.6
|
0.054
|
|
Living environment (apartment, %)*
|
43.5
|
49.3
|
0.632
|
|
Job (%)*
|
30.4
|
46.3
|
0.185
|
- PD peritoneal dialysis, PTH parathyroid hormone, SHPTH secondary hyperparathyroidism, RAS renin-angiotensin-aldosterone system
- Modifiable risk factors of peritonitis reported in previous studies are marked with asterisks
