Table 4.
Multivariable-adjusted* mean difference in global cognitive performance†(1995–2001) by quartiles of individual carotenoids and tocopherols (1989–1990)
Mean Difference in Global Score (95% Confidence Interval) | |||||
---|---|---|---|---|---|
Plasma Antioxidant | 1st Q (REF | 2nd Q | 3rd Q | 4th Q | P for linear trend |
α-carotene | 0 | 0.18 (−0.04, 0.31) | 0.07 (−0.07, 0.21) | −0.01 (−0.13, 0.15) | 0.57 |
β-carotene | 0 | 0.07 (−0.06, 0.20) | 0.04 (−0.09, 0.18) | −0.05 (−0.19, 0.09) | 0.50 |
Lutein / Zeaxanthin | 0 | 0.08 (−0.05, 0.21) | 0.12 (−0.01, 0.26) | 0.07 (−0.07, 0.20) | 0.37 |
Lycopene | 0 | 0.13 (0.00, 0.26) | 0.06 (−0.08, 0.19) | −0.01 (−0.14, 0.12) | 0.24 |
β-cryptoxanthin | 0 | −0.01 (−0.14, 0.12) | 0.01 (−0.13, 0.15) | 0.03 (−0.11, 0.17) | 0.83 |
Retinol | 0 | 0.13 (−0.01, 0.26) | 0.05 (−0.09, 0.19) | 0.08 (−0.05, 0.22) | 0.44 |
α-tocopherol | 0 | −0.05 (−0.18, 0.07) | −0.02 (−0.16, 0.11) | 0.06 (−0.08, 0.20) | 0.27 |
γ-tocopherol | 0 | 0.01 (−0.12, 0.14) | −0.15 (−0.28, −0.01) | −0.03 (−0.17, 0.10) | 0.35 |
Adjusted for the same covariates in the footnotes to Table 2