Table 1.

Baseline characteristics by type of CKD

Characteristic	Overall (n=651)	Glomerular Disease (n=195)	Nonglomerular Disease (n=456)
Age, yr	11 [8–15]	14 [11–16]	10 [7–14]
Sex (male)	404 (62)	106 (54)	298 (65)
Black race	131 (20)	59 (30)	72 (16)
Hispanic ethnicity	86 (13)	27 (14)	59 (13)
Premature birth (<36 wk)	74 (12)	21 (11)	53 (12)
eGFR	53 [40–67]	62 [45–78]	50 [38–62]
Time with CKD, yr	8.2 [3.9–12.4]	3.4 [1.3–7.6]	9.5 [6.3–13.2]
Hypertension	117 (18)	30 (15)	87 (19)
BUN	24 [18–32]	23 [17–30]	25 [18–33]
Serum albumin level	4.4 [4.1–4.6]	4.2 [3.8–4.5]	4.4 [4.2–4.6]
Hemoglobin level	12.7 [11.7–13.7]	12.3 [11.5–13.5]	12.8 [11.8–13.7]
Urine protein/creatinine, mg/g	0.32 [0.12–0.94]	0.61 [0.21–1.76]	0.24 [0.11–0.69]
Treatment with RAAS inhibitor	370 (57)	159 (82)	211 (46)

Hypertension is defined as a systolic or diastolic BP ≥95 percentile for age, height, and sex. Sample size differs due to missing data: time with CKD (n=640), hemoglobin level (n=639), Hispanic ethnicity (n=643), premature (n=627), and serum albumin level (n=649). Median [IQR] or frequency (percentage, %). RAAS, renin-angiotensin-aldosterone system.