Table 2

Total antioxidant and lipid peroxidation status of the representative sample
All participants (n=815) p value Men (1) (n=390) p value Women (2) (n=425) p value p value (1–2)
ORAC (mmol TE/L plasma) 7.23 (7.08-7.41) 7.22 (7.01-7.44) 7.25 (7.03-7.48) 0.982
ORAC age group (years):
  group I (18–29) 7.21 (6.92-7.51) 1.0 (I-II) 7.61 (7.21-8.04) 1.0 (I-II) 6.89 (6.49-7.3) 1.0 (I-II) 0.347
  group II (30–44) 6.77 (6.52-7.02) 1.0 (I-III) 6.64 (6.31-6.98) 1.0 (I-III) 6.89 (6.53-7.26) 1.0 (I-III) 0.687
  group III (45–64) 7.51 (7.24-7.79) 1.0 (I-IV) 7.24 (6.85-7.63) 1.0 (I-IV) 7.77 (7.39-8.16) 1.0 (I-IV) 0.471
  group IV (65–75) 8.07 (7.5-8.65) 0.817 (II-III) 8.34 (7.61-9.09) 1.0 (II-III) 7.84 (6.99-8.71) 1.0 (II-III) 0.778
0.358 (II-IV) 0.454 (II-IV) 1.0 (II-IV)
1.0 (III-IV) 1.0 (III-IV) 1.0 (III-IV)
TBARS (nmol/mL plasma) 0.93 (0.84-1.03) 0.91 (0.78-1.06) 0.94 (0.81-1.07) 0.244
TBARS age group (years):
  group I (18–29) 0.85 (0.66-1.04) 0.004 (I-II) 0.82 (0.54-1.12) 0.037 (I-II) 0.87 (0.62-1.12) 0.167 (I-II) 0.230
  group II (30–44) 0.93 (0.78-1.09) <0.001 (I-III) 0.92 0.92 (0.71-1.14) <0.001 (I-III) 0.94 (0.73-1.17) 0.04 (I-III) 0.440
  group III (45–64) 0.97 (0.8-1.14) <0.001 (I-IV) 0.97 0.97 (0.73-1.22) 0.034 (I-IV) 0.96 (0.93-1.21) 0.016 (I-IV) 0.852
  group IV (65–75) 0.98 (0.72-1.25) 0.771 (II-III) 0.95 0.95 (0.58-1.34) 0.759 (II-III) 1.01 (0.64-1.38) 1.0 (II-III) 0.361
0.665 (II-IV) 1.0 (II-IV) 0.989 (II-IV)
1.0 (III-IV) 1.0 (III-IV) 1.0 (III-IV)

Values represent geometric mean (IC 95%). ORAC oxygen radical absorbance capacity, TBARS thiobarbituric acid reactive substances. p-value adjusted with bonferroni correction

Romeu et al.

Romeu et al. Nutrition Journal 2013 12:102   doi:10.1186/1475-2891-12-102

Open Data