Table 3

Odds ratio and 95% confidence intervals for elevated (cutoff 1 mg/L) serum CRP concentrations by low or high dietary TAC groups in 443 Japanese women aged 18–22 years
Category of dietary TAC
Low (n = 221) High (n = 222)
FRAP (mmol Fe2+/d)*† 7.41 (0.71-10.60) 16.03 (10.61-37.17)
  n (%) with elevated CRP 18 (8.1) 7 (3.2)
  Crude model 1 (ref) 0.37 (0.15-0.90)
  Multivariate model‡ 1 (ref) 0.39 (0.16-0.98)
ORAC (mmol TE/d)*† 12.43 (1.18-16.73) 24.13 (16.78-50.77)
  n (%) with elevated CRP 17 (7.7) 8 (3.6)
  Crude model 1 (ref) 0.45 (0.19-1.06)
  Multivariate model‡ 1 (ref) 0.48 (0.20-1.14)
TEAC (mmol TE/d)*† 4.67 (0.44-6.25) 8.83 (6.26-31.75)
  n (%) with elevated CRP 19 (8.6) 6 (2.7)
  Crude model 1 (ref) 0.30 (0.12-0.75)
  Multivariate model‡ 1 (ref) 0.32 (0.12-0.82)
TRAP (mmol TE/d)*† 4.34 (0.31-6.66) 10.23 (6.71-52.42)
  n (%) with elevated CRP 19 (8.6) 6 (2.7)
  Crude model 1 (ref) 0.30 (0.12-0.75)
  Multivariate model‡ 1 (ref) 0.31 (0.12-0.81)

CRP C-reactive protein, TAC total antioxidant capacity, FRAP ferric reducing ability of plasma, ORAC oxygen radical absorbance capacity, TEAC Trolox equivalent antioxidant capacity, TRAP total radical-trapping antioxidant parameter, TE Trolox equivalent; ref, reference.

* Values are medians (ranges).

† Energy adjustment was performed according to the residual method.

‡ Adjusted for residential region [north (Kanto and Tohoku), central (Tokai and Hokuriku), and south (Kyushu and Chugoku)], size of residential area (city with a population ≥1 million, city with a population <1 million, and town and village), current smoking (yes or no), alcohol drinking (yes or no), dietary supplement use (yes or no), physical activity level (total metabolic equivalents-hours/d, continuous), body mass index (kg/m2, continuous), and n-3 polyunsaturated fatty acid intake (g/d, energy-adjusted, continuous).

Kobayashi et al.

Kobayashi et al. Nutrition Journal 2012 11:91   doi:10.1186/1475-2891-11-91

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