Association between the Oxidative Balance Score and Telomere Length from the National Health and Nutrition Examination Survey 1999-2002
Table 2
The baseline characteristics of males by quartiles of the OBS: National Health and Nutrition Examination Survey, United States, 1999–2002a.
Characteristics
Total (1697)
Q1 (434)
Q2 (382)
Q3 (472)
Q4 (409)
Age (year)
0.05
Race/ethnicity
<0.01
Non-Hispanic white (%)
1019
226 (73.20)
223 (78.70)
286 (78.96)
284 (84.07)
Non-Hispanic black (%)
232
94 (11.81)
51 (5.73)
61 (6.27)
26 (2.85)
Mexican American (%)
334
92 (7.46)
76 (5.55)
91 (5.23)
75 (5.66)
Other race (%)
45
8 (2.86)
17 (5.17)
9 (2.45)
11 (3.51)
Other Hispanic (%)
67
14 (4.67)
15 (4.85)
25 (7.09)
13 (3.91)
Education
<0.01
Less than 9th grade
132
40 (3.02)
32 (3.92)
45 (3.99)
15 (1.77)
9-11th grade
237
84 (15.06)
54 (9.85)
55 (10.05)
44 (5.61)
High school grad/GED
395
114 (25.77)
95 (27.58)
112 (23.67)
74 (17.64)
Some college or associate degree
436
117 (32.20)
100 (29.22)
126 (29.27)
93 (22.88)
College graduate or above
497
79 (23.95)
101 (29.43)
134 (33.03)
183 (52.13)
Family PIR
<0.01
≤1.3
293
98 (17.45)
79 (13.66)
61 (9.4)
55 (9.24)
1.3-3.5
615
170 (35.80)
134 (33.65)
189 (36.24)
122 (24.77)
>3.5
789
166 (46.75)
169 (52.69)
222 (54.35)
232 (65.79)
Energy (kcal)
<0.01
CRP (mg/dL)
0.14 (0.06, 0.31)
0.16 (0.07, 0.34)
0.15 (0.07, 0.33)
0.14 (0.06, 0.31)
0.13 (0.06, 0.27)
<0.01
Telomere (T/S ratio)
1.03 (0.88, 1.21)
1.04 (0.88, 1.21)
1.04 (0.87, 1.19)
1.00 (0.87, 1.22)
1.03 (0.88, 1.20)
<0.01
Log-transformed telomere (T/S ratio)
0.62
GED: general equivalent diploma; PIR: the ratio of family income to poverty; CRP: C-reactive protein. aData were expressed as the , median (), or counts (weighted percentages).
