Table 1.

Characteristics of live kidney donors at the time of donation, United States, October 1, 1987 – July 31, 2014^a

	n=125,427
Age, median years [IQR]b	40 [31–48]
18–39	49
40–49	29
50–59	17
60+	4
Female (%): b	59
Race/Ethnicity (%): b
White/Other	75
Black	13
Hispanic	12
Education (%):c
High School or less	35
Attended College	28
Graduate or more	37
Relationship (%): b
Parent/Child	30
Sibling/Other related	39
Unrelated	31
Body-mass Index (BMI), median kg/m2 d d[IQR]d	27 [24–30]
<25	32
25–29	41
30–34	21
35+	5
Creatinine, median mg/dL [IQR]e	0.8 [0.7–1.0]
eGFR, median ml/min/1.73m2 [IQR] e,f	98 [84–110]
<80	18
80–99	35
100+	47
Blood pressure, mmHgg
SBP, median [IQR]	120 [111–130]
<120	45
80–139	47
140+	8
DBP, median [IQR]	74 [68–80]
<80	69
80–89	26
90+	5
Year Of Transplant (%):b
1987–1993	11
1994–1997	11
1998–2001	16
2002–2005	21
2006–2009	20
2010–2014	21

^aData before April 1, 1994 were left censored

^bData on age, sex, race/ethnicity, donor/recipient relationship, and year of transplant were available throughout the study

^cNot available before 1999; 50% with missing values in 2000; 30% with missing values in 2005; and 10% with missing values in 2009

^dNot available before 1998; 57% with missing values in 1999; 20% with missing values in 2000; and 10% with missing values in 2005

^eNot available before 1999; 49% with missing values in 1999; 11% with missing values in 2000; and 6% with missing values in 2001

^fEstimated using the CKD-EPI equation (41)

^gNot available before 1999; 43% with missing values in 1999; 20–30% with missing values from 2000–2003; 9–16% with missing values from 2004–2007