Table 1. Description of the CKiD Preschool Sample (N = 124) at Study Entry.
| Sample Characteristic | % (n) or median [iqr] |
|---|---|
| Age | 3.7 [2.4, 4.6] |
| Male Gender | 69% (87) |
| Maternal Education (N=123) | |
| High School or less | 39% (48) |
| Some College | 33% (40) |
| College or more | 28% (35) |
| Glomerular Diagnosis | 6% (8) |
| Percent of Life with CKD | 100 [100, 100] |
| GFR* | 50.1 [38.3, 61.2] |
| Elevated Proteinuria (N=113) | 8% (9) |
| Hypertension** | 56% (71) |
| Anemia*** | 21% (26) |
| Low birth weight (N=124) | 20% (25) |
| Small for Gestational Age (N=121) | 16% (19) |
| Premature birth (N=122) | 19% (23) |
| Presence of Seizures (N=125) | 11% (14) |
*
iohexol GFR if available (N=108), eGFR if not (N=16)
**
defined as casual systolic or diastolic blood pressure ≥95th percentile for age, gender and height; current use of any antihypertensive medication; or self-report of hypertension.
***
defined as hemoglobin <5th percentile of normal for age and gender or taking an erythropoiesis-stimulating agent.