Table 1.

Basic characteristics of the patientsa

Characteristic (n = 684)Mean ± SD (Median) or n (%)
Female (n [%])332 (48.53)
Age (yr)49.9 ± 15.8 (49.0)
Height (cm)164.7 ± 8.3 (165.0)
Weight (kg)64.5 ± 12.4 (63.0)
BSA (m2)1.7 ± 0.18 (1.7)
BMI (kg/m2)23.6 ± 3.6 (23.4)
Plasma creatinine (mg/dl)2.0 ± 1.8 (1.3)
Plasma urea nitrogen (mg/dl)28.4 ± 19.9 (21.5)
Plasma albumin (g/dl)3.99 ± 0.6 (4.1)
rGFR (ml/min per 1.73 m2)55.1 ± 35.1 (49.9)
Causes of CKD
    primary or secondary glomerular        disease264 (38.6)
    hypertension102 (14.9)
    obstructive kidney disease92 (13.5)
    renovascular disease89 (13.0)
    chronic tubulointerstitial disease44 (6.4)
    diabetic nephropathy37 (5.4)
    polycystic kidney disease18 (2.6)
    other causes or causes unknown38 (5.6)
CKD stages
    1125 (18.3)
    2161 (23.6)
    3197 (28.8)
    4101 (14.7)
    5100 (14.6)
  • a BMI, body mass index; BSA, body surface area; CKD, chronic kidney disease; rGFR, reference GFR.