Table 2.
Characteristics of participants according to renal function, measured by eGFR
| 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 |
Data are expressed as mean ± SD, median (25, 75) or number with percentage (%) in parentheses
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
aeGFR calculated using the CKD Epidemiology Collaboration 2009 equation