Skip to main content
. 2012 Jul 31;9:70. doi: 10.1186/1743-7075-9-70

Table 1.

Characteristics of participants by categories of dietary total antioxidant capacity at baseline: Tehran Lipid and Glucose Study¹

  (n = 1938)
Q1 Q2 Q3 Q4 P2
Total antioxidant capacity
 
 
 
 
 
Range
< 842
842-958
959-1080
> 1080
 
Median
764
906
1014
1161
 
Age at baseline (yr)
37.0 ± 0.6
40.2 ± 0.5
41.4 ± 0.5
43.0 ± 0.5
<0.001
Men (%)
53.9
46.8
39.0
34.5
<0.001
Physical activity (Met-h/week)
 
 
 
 
 
Job activity
29.2 ± 2.3
26.7 ± 2.3
22.5 ± 2.3
26.0 ± 2.3
0.25
Leisure time activity
8.2 ± 0.7
9.9 ± 0.7
10.2 ± 0.7
12.0 ± 0.7
0.005
Total
37.5 ± 2.5
36.6 ± 2.4
32.7 ± 2.4
38.1 ± 2.4
0.41
Current smoker (%)
13.7
11.0
10.8
9.2
0.16
Education status (%)
 
 
 
 
 
Illiterate
2.5
1.7
2.3
2.7
0.73
Primary education
7.5
3.2
6.5
0
0.81
Academic education
81.1
90.3
83.9
91.3
0.81
Advanced academic education 11.3 6.5 9.7 8.7 0.81

1Data are age- and sex-adjusted mean ± SEM.

2P for trend across quartiles of dietary phytochemical index was calculated using Chi square test or linear regression models with adjustment for sex and age.