Table 1.

Distribution of characteristics at index visit by BMI categories, % (N) or Median [IQR]

Variable	Normal BMI	Overweight		Obese
	N = 560	N = 112	P Valuea	N = 127	P Valuea
N of unique Children	340	88		86
Age at index visit	11.16 [8.11, 14.25]	12.11 [9.26, 14.54]	0.017	12.04 [9.51, 15.12]	0.002
Year since CKD onset at index visit	10.05 [7.27, 13.26]	10.12 [7.20, 13.07]	0.797	9.94 [6.22, 13.38]	0.378
Male	63% (351)	61% (68)	0.695	65% (83)	0.572
Black Race	16% (88)	20% (22)	0.305	26% (33)	0.006
Household income < $36,000	36% (200)	45% (50)	0.074	44% (56)	0.078
Maternal education: college or more	33% (183)	29% (33)	0.506	24% (31)	0.069
Glomerular diagnosis	12% (65)	21% (24)	0.005	28% (35)	<0.001
eGFR (ml/min|1.73m2)	48.8 [37.7, 62.0]	53.4 [42.3, 66.1]	0.023	54.8 [41.8, 66.2]	0.010
Urine protein creatinine ratio	0.26 [0.11, 0.71]	0.33 [0.11, 1.05]	0.242	0.40 [0.11, 0.88]	0.233
Currently taking corticosteroid (systemic)	2.3% (13)	4.5% (5)	0.200	7.1% (9)	0.006
High triglycerides	37% (208)	54% (60)	0.005	65% (83)	<0.001
Low HDL cholesterol	8% (42)	18% (20)	<0.001	24% (30)	<0.001
Hypertension	51% (284)	49% (55)	0.448	69% (88)	<0.001
High glucose	14% (77)	14% (16)	0.881	18% (23)	0.208
Counts of CMRFs
0	28% (157)	18% (20)	0.107	9% (12)	<0.001
1	43% (240)	42% (47)		31% (39)
2	22% (121)	29% (32)		36% (46)
3	7% (39)	11% (12)		21% (27)
4	1% (3)	1% (1)		2% (3)

^aBased-on comparison with normal BMI group