Table 1.
Demographic and clinical characteristics.
| Time Period | |||
|---|---|---|---|
| Characteristic* | Period 1 | Period 2 | p-value for difference† |
| Patient Visits (N) | N=345 | N=506 | |
| Age, years | 12 [9, 15] | 13 [9, 16] | 0.018 |
| Male | 63% (217) | 62% (312) | 0.72 |
| Black race | 20% (70) | 24% (119) | 0.28 |
| Hispanic Ethnicity | 14% (48) | 15% (73) | 0.92 |
| Baseline household income ($US) | 0.20 | ||
| ≤ 36K | 41% (136) | 40% (198) | |
| 36–75K | 32% (106) | 27% (134) | |
| >75K | 28% (93) | 33% (163) | |
| Baseline maternal education | 0.012 | ||
| High school | 46% (154) | 36% (176) | |
| Some college | 25% (85) | 29% (144) | |
| College or more | 29% (97) | 35% (175) | |
| Years of CKD | |||
| Non-glomerular | 11 [8, 15] | 11 [8, 15] | 0.14 |
| Glomerular | 5 [3, 10] | 6 [2, 9] | 0.92 |
| Glomerular CKD | 23% (81) | 33% (165) | 0.004 |
| GFR (mL/min/1.73m2) | 38 [27, 52] | 58 [41, 72] | <0.001 |
| Urine Protein:Creatinine uP/C | 0.67 [0.23, 1.67] | 0.25 [0.08, 0.87] | <0.001 |
| Normal (<0.5) | 42% (141) | 63% (307) | <0.001 |
| Significant (0.5–2.0) | 36% (120) | 25% (122) | |
| Nephrotic (≥2.0) | 21% (71) | 12% (57) | |
| BMI (%ile) | 61 [35, 88] | 69 [36, 92] | 0.18 |
| Overweight (BMI %ile≥85) | 28% (98) | 34% (164) | 0.096 |
| Growth failure (HT %ile<5) | 22% (75) | 14% (70) | 0.003 |
| Low Birth weight | 17% (56) | 20% (93) | 0.41 |
*
Median [IQR] for continuous variables; %(n) for categorical variables.
†
Based on Wilcoxon rank sum tests for continuous variables and Fisher’s exact tests for categorical variables.
Missing data: Hispanic, n=12; income, n=21; maternal education, n=20; uP/C, n=33; BMI%ile, n=25; low birth weight, n=47.