Table 1 Characteristics of cognitive frailty in patients with chronic kidney disease

Age (years)

82.0 ± 8.6

76.5 ± 9.0

 < 0.001

Sex, n(%)

 Male

87 (56.5%)

520 (60.4%)

0.363

 Female

67 (43.5%)

341(39.6%)

Marital status, n(%)

 Married

93(60.4%)

695(80.7%)

 < 0.001

 Divorced /Widowed

61(39.6%)

166(19.3%)

BMI (kg/m²)

23.23 ± 3.67

25.07 ± 3.80

 < 0.001

Smoking

53 (34.4%)

308 (35.8%)

0.746

Drinking, n(%)

40 (26.0%)

198(23.0%)

0.422

Educational level

 illiteracy, n(%)

16(10.4%)

17(2.0%)

 < 0.001

 Primary school, n(%)

36(23.4%)

133(15.4%)

 Junior high school, n(%)

48(31.2%)

350(40.7%)

 High school or above, n(%)

54(35.4%)

361(41.9%)

SSRS, n(%)

 Low level, n(%)

71(46.1%)

152(17.8%)

 < 0.001

 High level, n(%)

83(53.9%)

708(82.2%)

Depression, n(%)

70(45.5%)

121(14.1%)

 < 0.001

CCI

6.59 ± 1.93

3.11 ± 1.72

 < 0.001

Grip strength(kg)

14.73 ± 5.84

21.28 ± 7.01

 < 0.001

Calf circumference(cm)

31.64 ± 5.73

34.95 ± 5.23

 < 0.001

Serum albumin (g/L)

35.22 ± 5.27

36.16 ± 5.67

0.056

CHOL(mmol/L)

4.14 ± 1.17

4.45 ± 1.41

0.010

LDL(mmol/L)

1.85 ± 0.84

2.06 ± 1.26

0.053

eGFR(ml/min)

31.88 ± 20.94

39.87 ± 24.20

 < 0.001

HGB(g/L)

106.78 ± 20.93

114.09 ± 21.01

 < 0.001

Albuminuria, n(%)

52 (33.8%)

154 (17.9%)

 < 0.001