Table 3 Characteristics and baseline data of older patients treated with USPD within six months

Age (years)

73.33 ± 5.95

71.76 ± 5.71

-1.723

0.086

Male (n, %)

22 (48.9)

151 (45.2)

0.216

0.642

Etiology (n, %)

-

-

3.181

0.671

 Glomerulonephritis

12 (26.7)

111 (33.2)

-

-

 Diabetic nephropathy

17 (37.8)

107 (32.0)

-

-

 Hypertensive nephropathy

10 (22.2)

56 (16.8)

-

-

 Interstitial nephritis

3 (6.7)

18 (5.4)

-

-

 Polycystic kidney

0 (0.0)

6 (1.8)

-

-

 Others

3 (6.7)

36 (10.8)

-

-

Co-morbidities (n, %)

 Hypertension

40 (88.9)

305 (91.3)

0.286

0.593

 Diabetes

24 (53.3)

143 (42.8)

1.780

0.182

NYHA-FC (n, %)

-

-

3.885

0.048

 0

12 (26.7)

138 (41.3)

-

-

 I–II

13 (28.9)

112 (33.5)

-

-

 III–IV

20 (44.4)

84 (25.1)

-

-

Abdominal surgery history (n, %)

6 (13.3)

49 (14.7)

0.057

0.811

Laboratory Index

 WBC (*10⁹/L)

8.28 (5.69, 11.18)

6.60 (5.25, 8.33)

-2.827

0.005

 Hb (g/L)

85.00 (74.50, 98.00)

84.00 (72.56, 95.00)

-0.447

0.655

 Alb (g/L)

31.40 (29.20, 35.03)

33.68 (30.10, 36.83)

-1.992

0.046

 eGFR (ml/min/1.73m2)

5.28 (4.18, 7.05)

5.28 (4.14, 7.04)

-0.396

0.692

 K (mmol/L)

4.69 ± 0.99

4.62 ± 0.89

-0.479

0.632

 Ca (mmol/L)

1.98 ± 0.37

1.96 ± 0.30

-0.399

0.690

 P (mmol/L)

1.83 (1.25, 2.39)

1.80 (1.43, 2.14)

-1.723

0.086