Weight trends in United States living kidney donors: Analysis of the UNOS database

doi:10.5500/wjt.v5.i3.137

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World Journal of Transplantation

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2220-3230

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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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
18-34	31.7
35-49	44.5
50-64	22.5
≥ 65	1.3
Gender
Male	40.2
Female	59.8
Race/ethnicity
Asian	3.7
Black	13.3
Hispanic	14.1
White	67.5
Other	1.4
BMI
Mildly thin	0.8
Normal	35.6
Overweight	40.5
Mildly obese	18.9
Moderate/morbid obese	4.2
Living donor relationship
Biological	61.5
Spouse/life partner	12.9
Non-biological	25.6
Education
No HS diploma or GED	1.8
HS or GED	25.3
Attended college/technical school	22.1
Associate/bachelors degree	19.9
Graduate degree	8.1
Unknown	22.7
Region
1	4.4
2	14.3
3	8.8
4	7.7
5	18.2
6	2.6
7	13.8
8	6.1
9	8.1
10	8.5
11	7.4

BMI: Body mass index; GED: General education degree; HS: High school.

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 category	Moderate/morbid	Mild obese	Overweight
vs normal weight	obese OR (95%CI)	OR (95%CI)	OR (95%CI)
Relationship
Biological	1.34 (1.19, 1.51)^a	1.19 (1.11, 1.27)^a	1.08 (1.03, 1.14)^a
Partner/spouse	1.64 (1.39, 1.93)^a	1.31 (1.19, 1.43)^a	1.18 (1.09, 1.27)^a
Non-biological	Ref.	Ref.	Ref.
Age x gender
Males
18-34 yr	Ref.	Ref.	Ref.
35-49 yr	1.65 (1.38, 1.97)^a	1.84 (1.67, 2.02)^a	1.82 (1.69, 1.97)^a
50-64 yr	1.32 (1.04, 1.69)^a	1.76 (1.56, 1.98)^a	1.78 (1.61, 1.96)^a
≥ 65 yr	1.40 (0.66, 2.97)	1.47 (0.99, 2.16)	1.40 (1.03, 1.92)^a
Females
18-34 yr	Ref.	Ref.	Ref.
35-49 yr	1.03 (0.90, 1.17)	1.30 (1.20, 1.41)^a	1.23 (1.15, 1.32)^a
50-64 yr	0.86 (0.72, 1.02)	1.21 (1.10, 1.33)^a	1.43 (1.33, 1.55)^a
≥ 65 yr	0.51 (0.25, 1.04)	0.73 (0.52, 1.04)	1.27 (1.01, 1.61)^a
Ethnicity/race x gender
Males
Asian	0.31 (0.18, 0.55)^a	0.22 (0.17, 0.30)^a	0.49 (0.42, 0.58)^a
Black	1.18 (0.95, 1.46)	0.99 (0.87, 1.12)	0.84 (0.76, 0.93)^a
Hispanic	1.46 (1.16, 1.85)^a	1.34 (1.18, 1.52)^a	1.21 (1.09, 1.35)^a
White	Ref.	Ref.	Ref.
Other	1.60 (0.85, 3.00)	1.23 (0.84, 1.79)	1.13 (0.82, 1.54)
Females
Asian	0.15 (0.07, 0.30)^a	0.33 (0.26, 0.42)^a	0.54 (0.47, 0.63)^a
Black	2.75 (2.36, 3.22)^a	2.41 (2.17, 2.66)^a	1.82 (1.66, 1.99)^a
Hispanic	1.49 (1.24, 1.78)^a	1.50 (1.35, 1.66)^a	1.49 (1.37, 1.62)^a
White	Ref.	Ref.	Ref.
Other	2.06 (1.34, 3.17)^a	1.83 (1.40, 2.41)^a	1.57 (1.25, 1.99)^a
Education
No HS diploma or GED	Ref.	Ref.	Ref.
HS or GED	2.03 (1.26, 3.28)^a	1.08 (0.88, 1.32)	0.91 (0.77, 1.07)
Attended college/technical school	1.91 (1.18, 3.10)^a	1.02 (0.83, 1.26)	0.93 (0.79, 1.10)
Associate/bachelors degree	1.40 (0.86, 2.28)	0.80 (0.65, 0.99)^a	0.80 (0.67, 0.94)^a
Graduate degree	1.04 (0.62, 1.73)	0.61 (0.49, 0.76)^a	0.67 (0.56, 0.80)^a
Unknown	1.84 (1.14, 2.98)^a	1.03 (0.84, 1.27)	0.92 (0.77, 1.08)
Region
1	1.18 (0.88, 1.57)	1.26 (1.08, 1.48)^a	1.14 (1.01, 1.29)^a
2	1.23 (0.99, 1.52)	1.09 (0.97, 1.23)	0.99 (0.90, 1.08)
3	1.08 (0.85, 1.37)	1.19 (1.05, 1.36)^a	1.13 (1.02, 1.25)^a
4	1.51 (1.19, 1.90)	1.46 (1.28, 1.66)^a	1.15 (1.03, 1.28)^a
5	0.78 (0.63, 0.97)^a	0.99 (0.88, 1.11)	0.99 (0.91, 1.09)
6	0.85 (0.58, 1.26)	0.98 (0.81, 1.19)	1.07 (0.92, 1.24)
7	1.49 (1.21, 1.83)^a	1.31 (1.17, 1.47)^a	1.03 (0.94, 1.13)
8	0.71 (0.53, 0.95)^a	0.92 (0.79, 1.06)	1.04 (0.93, 1.16)
9	Ref.	Ref.	Ref.
10	1.30 (1.03, 1.64)^a	1.33 (1.17, 1.52)^a	1.13 (1.02, 1.26)^a
11	1.06 (0.83, 1.35)	1.23 (1.08, 1.41)^a	1.11 (0.99, 1.23)
Year	0.75 (0.69, 0.80)^a	1.20 (1.15, 1.25)^a	1.12 (1.08, 1.15)^a
^aP < 0.05

BMI: Body mass index; GED: General education degree.

Citation: Sachdeva M, Rosen LM, Varghese J, Fishbane S, Molmenti EP. Weight trends in United States living kidney donors: Analysis of the UNOS database. World J Transplant 2015; 5(3): 137-144
URL: https://www.wjgnet.com/2220-3230/full/v5/i3/137.htm
DOI: https://dx.doi.org/10.5500/wjt.v5.i3.137