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Table 1 Baseline clinical characteristics of PD patients (n = 1089)

From: The cut-off values of handgrip strength and lean mass index for sarcopenia among patients on peritoneal dialysis

Variates

Total

(n = 1089)

Development cohort

(n = 762)

Validation cohort

(n = 327)

P

Age (years)a

56.4 ± 11.1

56.5 ± 15.2

56.1 ± 15.0

0.640

Male, n (%)

554 (50.8)

382 (50.1)

172 (52.4)

0.509

BMI (kg/m2)

23.2 ± 3.8

23.3 ± 3.8

23.0 ± 4.0

0.146

DM, n (%)

424 (38.9)

297 (39.0)

127 (38.7)

0.946

CVD, n (%)

431 (39.5)

293 (38.5)

138 (42.1)

0.280

Height (cm)

164.3 ± 8.5

164.3 ± 8.5

164.4 ± 8.7

0.867

Weight (kg)

62.1 ± 12.5

62.1 ± 12.0

62.1 ± 13.5

0.947

Handgrip strength (kg)

22.0 ± 10.9

22.0 ± 10.9

21.8 ± 10.7

0.664

Lean body mass (kg)

42.6 ± 8.5

42.6 ± 9.4

42.7 ± 8.9

0.917

Lean mass index (kg/m2)

15.6 ± 1.9

15.6 ± 1.9

15.6 ± 2.0

0.900

Laboratory and nutrition data

    

 Serum albumin (g/L)

35.6 ± 4.6

35.4 ± 4.7

35.8 ± 4.4

0.188

 Hemoglobin (g/L)

101.8 ± 15.8

101.7 ± 16.0

102.2 ± 15.4

0.677

 Hs-CRP (mg/L)

2.2 (0.8, 6.1)

2.2 (0.9, 6.1)

2.2 (0.7, 6.1)

0.994

 Urea nitrogen (mmol/L)

23.0 ± 6.3

23.0 ± 6.5

22.9 ± 6.0

0.959

 Serum creatinine (umol/L)

712.6 ± 247.5

710.7 ± 247.3

717.0 ± 248.3

0.700

 Serum calcium (mmol/L)

2.20 ± 0.2

2.2 ± 0.2

2.2 ± 0.2

0.131

 Serum phosphorus (mmol/L)

1.6 ± 0.4

1.6 ± 0.4

1.6 ± 0.4

0.949

 Serum sodium (mmol/L)

139.2 ± 2.6

139.1 ± 2.6

139.2 ± 2.6

0.531

 Serum potassium (mmol/L)

4.4 ± 0.6

4.4 ± 0.6

4.4 ± 0.6

0.687

 HDL-cholesterol (mmol/L)

1.1 ± 0.3

1.1 ± 0.3

1.1 ± 0.4

0.299

 LDL-cholesterol (mmol/L)

2.6 ± 0.8

2.6 ± 0.8

2.6 ± 0.8

0.874

 Total cholesterol (mmol/L)

4.8 ± 1.2

4.9 ± 1.3

4.8 ± 1.1

0.244

 Triglycerides (mmol/L)

1.5 (1.1, 2.1)

1.5 (1.1, 2.0)

1.5 (1.2, 2.2)

0.239

 iPTH (pg/mL)

170.0 (82.3, 329.5)

178.9 (84.0, 336.7)

158.6 (76.8, 313.3)

0.246

 Total CCr (L/w/1.73 m2)

69.3 ± 28.8

68.8 ± 28.4

70.4 ± 29.6

0.432

 Total Kt/V

1.9 ± 0.6

1.9 ± 0.6

1.9 ± 0.6

0.646

 RRF (ml/min)

3.2 (1.7, 5.4)

3.2 (1.8, 5.1)

3.5 (1.5, 5.8)

0.345

  1. aValues are expressed as a mean ± standard deviation, percentage or median with upper and lower quartile or percentage
  2. PD peritoneal dialysis, BMI body mass index, DM diabetes mellitus, CVD cardiovascular disease, Hs-CRP high-sensitive C-reactive protein, HDL high density lipoprotein, LDL low density lipoprotein, iPTH intact parathyroid hormone, Total CCr total creatinine clearance, Total Kt/V total urea clearance, RRF residual renal function