. Author manuscript; available in PMC: 2012 Feb 1.

Published in final edited form as: Kidney Int. 2011 Jun 8;80(4):423–430. doi: 10.1038/ki.2011.155

Table 1.

Descriptive statistics (percentor median [interquartile range]) of clinical and demographic characteristics of the MACS and CKiD populations at baseline.

Characteristic	MACS (n= 527)	CKiD (n= 514)
Age (years)	50.9 [46.0, 57.1]	11.1 [7.7, 14.7]
Male	100%	62%
Race
White	57%	66%
Black	35%	23%
Other	8%	12%
Height (m)	1.76 [1.71, 1.80]	1.40 [1.20, 1.58]
Weight (kg)	80.7 [72.6, 90.4]	36.3 [23.7, 54.8]
BMI (kg/m²)	26.2 [23.9, 28.8]	18.3 [16.2, 22.0]
BSA (m²)	2.00 [1.87, 2.14]	1.19 [0.89, 1.57]
HIV infected	70%	0%
Serum creatinine (mg/dl)	0.92 [0.79, 1.08]	1.30 [1.00, 1.80]
GFR_2,2 (ml/min\|1.73m²)	109.2[94.9, 125.2]	44.0 [32.8, 56.0]

BMI, body mass index; BSA, body surface area;

MACS, Multicenter AIDS Cohort Study; CKiD, Chronic Kidney Disease in Children Cohort Study