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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

VariablesCategory of eGFRa (ml/min/1.73m2)p-value
< 90 (n = 273)≥90 (n = 503)
Age (years)65.1 ± 6.060.4 ± 5.5< 0.001
Menopausal duration (years)15.4 ± 7.011.0 ± 6.7< 0.001
Height (cm)153.8 ± 4.9153.8 ± 5.30.858
Weight (kg)55.3 ± 7.355.5 ± 8.10.914
BMI (kg/cm2)23.4 ± 2.823.4 ± 3.10.965
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 ± 0.1420.938 ± 0.1520.195
Femoral neck BMD (g/cm2)0.717 ± 0.1060.744 ± 0.1250.004
Total hip BMD (g/cm2)0.796 ± 0.1160.823 ± 0.1290.004
TG (mmol/l)1.5 (1.1, 2.1)1.4 (1.1, 2.0)0.991
TC (mmol/l)5.4 ± 0.95.3 ± 0.90.169
HDL-C (mmol/l)1.5 (1.3, 1.7)1.6 (1.3, 1.8)0.350
LDL-C (mmol/l)3.2 ± 0.73.1 ± 0.70.287
SCa (mmol/l)2.4 ± 0.12.4 ± 0.10.849
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