Table 1 Patient characteristics and clinical factors of patients with or without the history of peritonitis

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