Creatinine-Based Estimations of Kidney Function Are Unreliable in Obese Kidney Donors

Table 1

Characteristics of potential kidney donors with measured glomerular filtration rate.

	Normal (BMI < 30); (𝑛=83)	Class I Obesity (BMI 30–35); (𝑛=49)	Class II/III Obesity (BMI > 35); (𝑛=32)	𝑃 value
Age (yrs)	39.1±12.4	39.1±10.0	35.7±9.7	0.30
Weight (kg)	76.5±10.7	96.1±10.9	107.6±16.3	<0.001
BMI	26.5±2.5	32.3±1.4	40.0±4.3	<0.001
Male	42 (51%)	25 (51%)	5 (16%)	0.002
Ethnicity				0.14
White	24 (29%)	9 (18%)	5 (16%)
Black	30 (36%)	21 (43%)	20 (62%)
Hispanic	24 (29%)	13 (27%)	6 (19%)
Other	5 (6%)	6 (12%)	1 (3%)

Abbreviations: BMI—body mass index (kg/m²).