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Table 2 Characteristics of participants according to renal function, measured by eGFR

From: Association between renal function and bone mineral density in healthy postmenopausal Chinese women

Variables

Category of eGFRa (ml/min/1.73m2)

p-value

< 90 (n = 273)

≥90 (n = 503)

Age (years)

65.1 ± 6.0

60.4 ± 5.5

< 0.001

Menopausal duration (years)

15.4 ± 7.0

11.0 ± 6.7

< 0.001

Height (cm)

153.8 ± 4.9

153.8 ± 5.3

0.858

Weight (kg)

55.3 ± 7.3

55.5 ± 8.1

0.914

BMI (kg/cm2)

23.4 ± 2.8

23.4 ± 3.1

0.965

BUN (mmol/l)

5.7 (4.8, 6.6)

5.0 (4.2, 5.9)

< 0.001

SCr (μmol/l)

69.1 (65.0, 73.7)

53.3 (44.0, 58.6)

< 0.001

eGFR (ml/min/1.73m2)

80.3 (74.1, 86.2)

99.3 (95.3, 104.9)

< 0.001

L1-L4 BMD (g/cm2)

0.924 ± 0.142

0.938 ± 0.152

0.195

Femoral neck BMD (g/cm2)

0.717 ± 0.106

0.744 ± 0.125

0.004

Total hip BMD (g/cm2)

0.796 ± 0.116

0.823 ± 0.129

0.004

TG (mmol/l)

1.5 (1.1, 2.1)

1.4 (1.1, 2.0)

0.991

TC (mmol/l)

5.4 ± 0.9

5.3 ± 0.9

0.169

HDL-C (mmol/l)

1.5 (1.3, 1.7)

1.6 (1.3, 1.8)

0.350

LDL-C (mmol/l)

3.2 ± 0.7

3.1 ± 0.7

0.287

SCa (mmol/l)

2.4 ± 0.1

2.4 ± 0.1

0.849

Cigarette smoking, %

8 (2.9%)

5 (1.0%)

0.074

Alcohol consumption, %

6 (2.2%)

14 (2.8%)

0.623

Physical exercise, %

231 (84.6%)

408 (81.1%)

0.222

Osteoporosis,%

115 (42.1%)

174 (34.6%)

0.038

  1. Data are expressed as mean ± SD, median (25, 75) or number with percentage (%) in parentheses
  2. BMD bone mineral density, BMI body mass index; BUN, blood urea nitrogen, eGFR estimated glomerular filtration rate, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, SCa serum calcium, SCr serum creatinine, TC total cholesterol, TG triglyceride
  3. aeGFR calculated using the CKD Epidemiology Collaboration 2009 equation