Validation of the Kidney Failure Risk Equation in the Colombian Population

Table 1

Baseline demographic and clinical characteristics.

Characteristics	Predialysis program; N = 5477; n (%)
Demographics
Age, mean (SD), years	72.0 (13.4)
<65 years	1323 (24.2)
≥65 years	4154 (75.8)
Sex, n (%)
Male	2840 (51.8)
Female	2637 (48.2)
Ethnicity, n (%)
Others	5439 (99.3)
Afro-American	38 (0.7)
Comorbid conditions
Diabetes	1993 (36.4)
Cardiovascular disease,^a	799 (14.6)
Laboratory data
GFR, mL/min/1.73 m^2 baseline, mean (SD)	36.1 (13.6)
30–59	3523 (64.3)
15–29	1659 (30.3)
<15	295 (5.4)
Serum creatinine, mean (SD), mg/dL	1.9 (0.8)
Urine albumin-to-creatinine ratio, mg/g, median (IQR)	112 (30, 496)
<30	1325 (24.2)
30–299	2331 (42.6)
≥300	1821 (33.2)
Outcomes
Observation time, days	683 (132.5)
Kidney failure events
Hemodialysis	101
Peritoneal dialysis	211
Kidney transplantation	4
Mortality rate per 100 person-year	4.6 [4.2–5.0]
KRT rate per 100 person-year	3.0 [2.9–3.6]

GFR, glomerular filtration rate; IQR, interquartile range; SD, standard deviation. ^aCardio-vascular disease is defined as the presence of coronary artery disease or peripheral vascular disease. KRT: kidney replacement therapy.