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 |