| Antioxidant | PC | |
| r-value | p-value | |
| Dietary intake of lycopene | −0.396 | 0.041* |
| Dietary intake of beta-carotene | −0.217 | 0.278 |
| Dietary intake of retinol | 0.394 | 0.042* |
| Serum lycopene | −0.502 | 0.008* |
| Serum beta-carotene | −0.064 | 0.751 |
| Serum retinol | 0.084 | 0.678 |