Table 5 The levels of Ca, P, and iPTH in different-age groups.

From: The current status of chronic kidney disease-mineral and bone disorder management in China

 

All patients (n = 7053)

18–44 (n = 1414)

45–59 (n = 3016)

 ≥ 60 (n = 2623)

P

Corrected Ca patients, n

5583

1049

2388

2146

 

Corrected Ca (mmol/L)

2.21 (2.05, 2.37)

2.22 (2.06, 2.39)

2.21 (2.06, 2.37)

2.20 (2.05, 2.36)

0.041

Corrected Ca, n (%)

< 2.1

1747 (31.3)

308 (29.4)

738 (30.9)

701 (32.7)

0.145

2.1–2.5

3214 (57.6)

611 (58.2)

1379 (57.7)

1224 (57.0)

0.788

> 2.5

622 (11.1)

130 (12.4)

271 (11.3)

221 (10.3)

0.192

P patients, n

6413

1279

2747

2387

 

P (mmol/L)

1.78 (1.40, 2.18)

1.89 (1.49, 2.30)

1.83 (1.44, 2.22)

1.67 (1.32, 2.07)

< 0.001

P, n (%)

< 0.87

260 (4.1)

37 (2.9)

92 (3.3)

131 (5.5)a

< 0.001

0.87–1.45

1561 (24.3)

255 (19.9)

614 (22.4)

692 (29.0)a

< 0.001

1.46–1.78

1423 (22.2)

257 (20.1)

599 (21.8)

567 (23.8)b

0.032

> 1.78

3169 (49.4)

730 (57.1)

1442 (52.5)

997 (41.8)a

< 0.001

iPTH patients, n

5610

1154

2405

2051

 

iPTH (pg/mL)

314.3 (164.0, 560.0)

400.7 (217.9, 681.0)

314.3 (164.0, 560.0)

266.1 (146.1, 463.1)

< 0.001

iPTH, n (%)

< 150

1249 (22.3)

191 (16.6)

527 (21.9)

531 (25.9)a

< 0.001

150–300

1448 (25.8)

222 (19.2)

612 (25.4)

614 (29.9)a

< 0.001

301–600

1639 (29.2)

394 (34.1)c

676 (28.1)

569 (27.7)

< 0.001

601–800

439 (7.8)

111 (9.6)

192 (8.0)

136 (6.6)b

0.010

> 800

835 (14.9)

236 (20.5)

398 (16.5)

201 (9.8)a

< 0.001

  1. aPatients over 60 years old compared with the other two age groups, P-int < 0.05.
  2. bPatients over 60 years old compared with patients under 45 years old, P-int < 0.05.
  3. cPatients under 45 years old compared with the other two age groups, P-int < 0.05.