Table 1.
Characteristics of Patients With CKD in the Kidney Failure Risk Equation Validation Cohort by CKD Severity (Residents Aged 18+ on March 31, 2007).
| Patients with CKD by severity (October 1, 2006 to March 31, 2007) |
||
|---|---|---|
| Mild to severe (Stage G3) |
Severe or kidney failure (stage G4-G5) |
|
| 1196 | 316 | |
| Demographics | ||
| Age group, y | ||
| 18-65 | 40.90% | 42.10% |
| 65+ | 59.00% | 57.90% |
| Average age (SD), y | 67 (13) | 66 (14) |
| Male | 50.30% | 49.70% |
| Laboratory parameters | ||
| Urine albumin-to-creatinine ratio, mg/g | ||
| <30 | 42.40% | 21.20% |
| 30-300 | 35.10% | 30.10% |
| ≥300 | 22.50% | 48.70% |
| Serum creatinine, mg/dL | 1.4 | 2.8 |
| Glomerular filtration rate, mL/min/1.73 m2 | 47.9 | 21.3 |
| Seen by nephrologist in previous 5 y | 31.20% | 76.60% |
| Comorbid conditions | ||
| Diabetes prevalenceb | 76.60% | 73.10% |
| Ischemic heart disease prevalencec | 37.90% | 38.00% |
| Congestive heart failure prevalenceb | 17.40% | 27.90% |
| Atrial fibrillation prevalenceb | 5.90% | 5.70% |
| Outcomes | ||
| End-stage kidney disease prevalence | 4.80% | 29.80% |
| Mortality rate | 26.30% | 32.90% |
Note. CKD = chronic kidney disease.
a
CKD severity based on heat map categories in chapter 2 of “Kidney Disease: Improving Global Outcomes (KDIGO) CKD Work Group: KDIGO 2012 clinical practice guideline for the evaluation and management of chronic kidney disease (2013)”.
b
2004/2005-2006/2007.
c
2002/2003-2006/2007.