Prospective Study
Copyright ©The Author(s) 2015.
World J Transplant. Sep 24, 2015; 5(3): 137-144
Published online Sep 24, 2015. doi: 10.5500/wjt.v5.i3.137
Table 1 Demographic Characteristics of United States living kidney donors from 1999-2011
Characteristic(%)
Age
18-3431.7
35-4944.5
50-6422.5
≥ 651.3
Gender
Male40.2
Female59.8
Race/ethnicity
Asian3.7
Black13.3
Hispanic14.1
White67.5
Other1.4
BMI
Mildly thin0.8
Normal35.6
Overweight40.5
Mildly obese18.9
Moderate/morbid obese4.2
Living donor relationship
Biological61.5
Spouse/life partner12.9
Non-biological25.6
Education
No HS diploma or GED1.8
HS or GED25.3
Attended college/technical school22.1
Associate/bachelors degree19.9
Graduate degree8.1
Unknown22.7
Region
14.4
214.3
38.8
47.7
518.2
62.6
713.8
86.1
98.1
108.5
117.4
Table 2 Multinomial logistic regression models predicting moderate/morbid obesity (body mass index 35 or greater), mild obesity (body mass index 30 to less than 35) and overweight (body mass index 25 to less than 30) as compared to normal body mass index
Weight categoryModerate/morbidMild obeseOverweight
vs normal weightobese OR (95%CI)OR (95%CI)OR (95%CI)
Relationship
Biological1.34 (1.19, 1.51)a1.19 (1.11, 1.27)a1.08 (1.03, 1.14)a
Partner/spouse1.64 (1.39, 1.93)a1.31 (1.19, 1.43)a1.18 (1.09, 1.27)a
Non-biologicalRef.Ref.Ref.
Age x gender
Males
18-34 yrRef.Ref.Ref.
35-49 yr1.65 (1.38, 1.97)a1.84 (1.67, 2.02)a1.82 (1.69, 1.97)a
50-64 yr1.32 (1.04, 1.69)a1.76 (1.56, 1.98)a1.78 (1.61, 1.96)a
≥ 65 yr1.40 (0.66, 2.97)1.47 (0.99, 2.16)1.40 (1.03, 1.92)a
Females
18-34 yrRef.Ref.Ref.
35-49 yr1.03 (0.90, 1.17)1.30 (1.20, 1.41)a1.23 (1.15, 1.32)a
50-64 yr0.86 (0.72, 1.02)1.21 (1.10, 1.33)a1.43 (1.33, 1.55)a
≥ 65 yr0.51 (0.25, 1.04)0.73 (0.52, 1.04)1.27 (1.01, 1.61)a
Ethnicity/race x gender
Males
Asian0.31 (0.18, 0.55)a0.22 (0.17, 0.30)a0.49 (0.42, 0.58)a
Black1.18 (0.95, 1.46)0.99 (0.87, 1.12)0.84 (0.76, 0.93)a
Hispanic1.46 (1.16, 1.85)a1.34 (1.18, 1.52)a1.21 (1.09, 1.35)a
WhiteRef.Ref.Ref.
Other1.60 (0.85, 3.00)1.23 (0.84, 1.79)1.13 (0.82, 1.54)
Females
Asian0.15 (0.07, 0.30)a0.33 (0.26, 0.42)a0.54 (0.47, 0.63)a
Black2.75 (2.36, 3.22)a2.41 (2.17, 2.66)a1.82 (1.66, 1.99)a
Hispanic1.49 (1.24, 1.78)a1.50 (1.35, 1.66)a1.49 (1.37, 1.62)a
WhiteRef.Ref.Ref.
Other2.06 (1.34, 3.17)a1.83 (1.40, 2.41)a1.57 (1.25, 1.99)a
Education
No HS diploma or GEDRef.Ref.Ref.
HS or GED2.03 (1.26, 3.28)a1.08 (0.88, 1.32)0.91 (0.77, 1.07)
Attended college/technical school1.91 (1.18, 3.10)a1.02 (0.83, 1.26)0.93 (0.79, 1.10)
Associate/bachelors degree1.40 (0.86, 2.28)0.80 (0.65, 0.99)a0.80 (0.67, 0.94)a
Graduate degree1.04 (0.62, 1.73)0.61 (0.49, 0.76)a0.67 (0.56, 0.80)a
Unknown1.84 (1.14, 2.98)a1.03 (0.84, 1.27)0.92 (0.77, 1.08)
Region
11.18 (0.88, 1.57)1.26 (1.08, 1.48)a1.14 (1.01, 1.29)a
21.23 (0.99, 1.52)1.09 (0.97, 1.23)0.99 (0.90, 1.08)
31.08 (0.85, 1.37)1.19 (1.05, 1.36)a1.13 (1.02, 1.25)a
41.51 (1.19, 1.90)1.46 (1.28, 1.66)a1.15 (1.03, 1.28)a
50.78 (0.63, 0.97)a0.99 (0.88, 1.11)0.99 (0.91, 1.09)
60.85 (0.58, 1.26)0.98 (0.81, 1.19)1.07 (0.92, 1.24)
71.49 (1.21, 1.83)a1.31 (1.17, 1.47)a1.03 (0.94, 1.13)
80.71 (0.53, 0.95)a0.92 (0.79, 1.06)1.04 (0.93, 1.16)
9Ref.Ref.Ref.
101.30 (1.03, 1.64)a1.33 (1.17, 1.52)a1.13 (1.02, 1.26)a
111.06 (0.83, 1.35)1.23 (1.08, 1.41)a1.11 (0.99, 1.23)
Year0.75 (0.69, 0.80)a1.20 (1.15, 1.25)a1.12 (1.08, 1.15)a
aP < 0.05