Table 4 Characteristics and baseline data of older patients treated with USPD after six months

Age (years)

72.31 ± 6.25

71.58 ± 5.51

-0.954

0.342

Male (n, %)

40 (47.1)

111 (44.6)

0.157

0.692

Etiology (n, %)

-

-

8.784

0.118

 Glomerulonephritis

23 (27.1)

88 (35.3)

-

-

 Diabetic nephropathy

37 (43.5)

70 (28.1)

-

-

 Hypertensive nephropathy

12 (14.1)

44 (17.7)

-

-

 Interstitial nephritis

5 (5.9)

13 (5.2)

-

-

 Polycystic kidney

0 (0.0)

6 (2.4)

-

-

 Others

8 (9.4)

28 (11.2)

-

-

Comorbidities (n, %)

 Hypertension

80 (94.1)

225 (90.4)

1.128

0.288

 Diabetes

43 (50.6)

100 (40.2)

2.814

0.093

NYHA-FC (n, %)

-

-

3.881

0.275

 0

31 (36.5)

107 (43.0)

-

-

 I–II

26 (30.6)

86 (34.5)

-

-

 III–IV

28 (32.9)

56 (22.5)

-

-

Abdominal surgery history (n, %)

13 (15.3)

36 (14.5)

0.035

0.851

Laboratory Index

 WBC (*10⁹/L)

6.63 ± 2.13

7.38 ± 3.64

2.315

0.021

 Hb (g/L)

82.00 (71.00, 94.00)

85.00 (73.00, 96.50)

-1.059

0.290

 Alb (g/L)

32.93 (30.40, 36.10)

33.98 (30.50, 37.00)

-0.721

0.471

 eGFR (ml/min/1.73m2)

5.94 (4.38, 7.37)

5.94 (4.38, 7.37)

-1.667

0.095

 K (mmol/L)

4.03 (4.01, 4.76)

4.67 (4.07, 5.32)

-3.450

0.001

 Ca (mmol/L)

2.01 ± 0.32

1.94 ± 0.29

-1.863

0.063

 P (mmol/L)

1.68 ± 0.51

1.92 ± 0.66

3.060

0.002