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. 2021 May 17;13(5):1701. doi: 10.3390/nu13051701

Table 2.

Association of the PAC-score, polyphenol classes and sub-classes and total antioxidant capacity with Δage, by means of regression coefficients (β) with 95% confidence interval (95%CI).

Biological Aging (Δage)
Dietary Factors β (95%CI) 1 p Value β (95%CI) 2 p Value
PAC-score −0.30 (−0.49, −0.12) 0.001 −0.27 (−0.52, −0.02) 0.03
Polyphenol classes/sub-classes (mg/d)
Flavonols −0.28 (−0.47, −0.10) 0.003 −0.21 (−0.44, 0.01) 0.06
Isoflavones −0.12 (−0.30, 0.06) 0.18 0.13 (−0.17, 0.44) 0.40
Lignans −0.17 (−0.35, 0.01) 0.06 −0.02 (−0.34, 0.29) 0.89
Flavones −0.02 (−0.19, 0.15) 0.84 −0.02 (−0.19, 0.16) 0.84
Flavanones −0.02 (−0.20, 0.16) 0.82 0.23 (−0.01, 0.47) 0.06
Flavanols −0.04 (−0.22, 0.13) 0.60 0.02 (−0.14, 0.19) 0.78
Anthocyanidins −0.25 (−0.43, −0.09) 0.05 −0.15 (−0.37, 0.07) 0.17
Total antioxidant capacity
 FRAP −0.01 (−0.21, 0.20) 0.93 −0.13 (−0.34, 0.07) 0.20
 TEAC −0.03 (−0.24, 0.17) 0.74 −0.14 (−0.34, 0.07) 0.19
 TRAP −0.01 (−0.20, 0.18) 0.94 −0.14 (−0.34, 0.05) 0.16

1 Regression coefficients (95%CI) obtained from a model controlled for age, sex and energy intake. 2 Regression coefficients (95%CI) obtained from a model controlled for age, sex, energy intake, body mass index, cardiovascular disease, cancer, diabetes, educational level, hormone replacement therapy, hyperlipidaemia, hypertension, leisure-time, menopausal status, physical activity, smoking habit and dietary fiber (g/d). FRAP = ferric-reducing antioxidant power (mmol Fe2+). TEAC = trolox equivalent antioxidant capacity (mmol Trolox). TRAP = radical-trapping antioxidant parameter (mmol Trolox).