Variables  Non late referral  Late referral 
Age (years)  75<  75>  75<  75> 
Number  135 83 44 23
Gender (male/female)  (78/57)  (47/36)   (28/16)   (11/12) 
eGFR (mL/min/1.73 m2)  21.7± 4.3  22.7 ± 3.9  23.1 ± 5.1  23.1 ± 4.9 
SBP (mmHg)  128.6 ± 18.2  130.5 ± 16.3  145.2 ± 13.1  141.2 ± 11.9 
DBP (mmHg)  81.5 ± 6.7  75.3 ± 15.9  83.6 ± 4.9  73.2 ± 11.4 
HR (beats/min)  72.3 ± 6.6  68.1 ± 4.3  71.6 ± 7.5  66.6 ± 7.2 
Serum albumin (g/dL)  4.1 ± 0.4  3.9± 0.7  3.6± 0.9  3.8± 1.2 
Hemoglobin (g/dL)  12.6 ± 0.7  12.1 ± 0.9  11.3 ± 0.7  11.2 ± 0.9 
Total cholesterol (mg/dL)  200.6± 35.3  180.8 ± 28.7  201.3± 36.7  172.1 ± 35.3 
Phosphate (mg/dL)  3.6± 1.1  3.3± 1.0  5.0± 1.8*  4.8± 0.7* 
Calcium (mg/dL)  9.6 ± 0.5  9.8± 0.3  8.1 ± 1.1*  8.4± 1.5* 
Urinary protein excretion (g/gCr)  1.12 ± 0.66  1.00 ± 0.88  1.42 ± 1.34  1.31 ± 1.21 
Values are expressed as mean±SD. * indicates P<0.05 compared with the values of total.
Table 5: Comparison of baseline characteristics between non late referral population and patients with late referral.