Table 7. Serum Carotenoid (mg/ml) and plasma vitamin C (mg/dl) in 4 areas and correlations with carotenoid intakes, vitamin C intakes assessed with either DR1 and FFQ2.
Sex | Spearman correlation | ||||||
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Carotenoids | DR | FFQ | |||||
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Mean | SD | Median | crude | energy - adjusted3 | crude | energy - adjusted3 | |
Men (n=86) | |||||||
Total carotene | 0.35 | 0.25 | 0.27 | 0.25 | 0.25 | 0.30 | 0.21 |
Alpha-carotene | 0.06 | 0.03 | 0.05 | 0.38 | 0.38 | 0.38 | 0.34 |
Beta-carotene | 0.29 | 0.23 | 0.22 | 0.21 | 0.20 | 0.28 | 0.18 |
Lycopene | 0.09 | 0.03 | 0.08 | 0.28 | 0.34 | 0.30 | 0.26 |
Vitamin C | 1.17 | 0.27 | 1.13 | -0.01 | -0.13 | -0.07 | -0.20 |
Women (n=100)4 | |||||||
Total carotene | 0.57 | 0.33 | 0.50 | 0.25 | 0.26 | 0.12 | 0.08 |
Alpha-carotene | 0.08 | 0.04 | 0.07 | 0.40 | 0.43 | 0.30 | 0.30 |
Beta-carotene | 0.49 | 0.31 | 0.41 | 0.26 | 0.25 | 0.11 | 0.03 |
Lycopene | 0.10 | 0.04 | 0.09 | 0.34 | 0.37 | 0.19 | 0.10 |
Vitamin C | 1.31 | 0.31 | 1.32 | 0.07 | -0.02 | 0.06 | -0.14 |
1DR, dietary records.
2FFQ, food frequency questionnaire.
3Energy was adjusted by residual model for intake.
4For vitamin C, women (n=99).
For n=86, r>0.22 = p<0.05, r>0.28 = p<0.01, r>0.35 = p<0.001.
For n=100, r>0.20 = p<0.05, r>0.26 = p<0.01, r>0.33 = p<0.001.