Table 3 Association between dietary antioxidants intake and childhood eczema in age subgroups

Original data

Vitamin E (mg)

0.97 (0.83–1.14)

0.95 (0.85–1.06)

0.95 (0.88–1.02)

β-carotene (mcg)

1.01 (1.01–1.01)

1.00 (1.00–1.00)

1.00 (1.00–1.00)

Vitamin C (mg)

1.00 (0.99–1.01)

1.00 (0.99–1.00)

1.00 (1.00–1.00)

Zinc (mg)

0.87 (0.76–0.98)

0.94 (0.88–1.01)

0.97 (0.93–1.02)

Selenium (mcg)

1.00 (0.98–1.01)

1.00 (0.99–1.01)

1.00 (1.00–1.01)

Retinol (mcg)

1.01 (1.01–1.01)

1.00 (1.00–1.00)

1.00 (1.00–1.00)

Normalized data

Vitamin E (mg)

0.88 (0.41–1.92)

0.76 (0.44–1.32)

0.77 (0.54–1.10)

β-carotene (mcg)

2.12 (1.30–3.47)

1.09 (0.87–1.36)

1.03 (0.85–1.24)

Vitamin C (mg)

0.89 (0.50–1.59)

0.80 (0.58–1.12)

0.96 (0.77–1.19)

Zinc (mg)

0.38 (0.16–0.90)

0.66 (0.41–1.07)

0.83 (0.62–1.11)

Selenium (mcg)

0.89 (0.39–2.05)

0.89 (0.56–1.41)

1.09 (0.80–1.48)

Retinol (mcg)

1.79 (1.01–3.21)

0.84 (0.60–1.16)

1.14 (0.91–1.43)

Vitamin E

< 3.82

Ref

Ref

Ref

[3.82, 6.28)

0.45 (0.15–1.34)

0.91 (0.47–1.73)

1.04 (0.61–1.79)

≥ 6.28

0.52 (0.10–2.67)

1.73 (0.76–3.94)

0.86 (0.45–1.67)

P for trend

β-carotene

< 230

Ref

Ref

Ref

[230, 613)

1.20 (0.48–2.98)

0.56 (0.30–1.06)

0.81 (0.48–1.36)

≥ 613

1.56 (0.62–3.93)

0.56 (0.29–1.10)

0.98 (0.57–1.70)

P for trend

Vitamin C

< 35.5

Ref

Ref

Ref

[35.5, 96.1)

0.99 (0.37–2.68)

1.04 (0.58–1.87)

1.32 (0.81–2.17)

≥ 96.1

1.49 (0.53–4.21)

0.90 (0.46–1.77)

0.89 (0.51–1.55)

P for trend

Zinc

< 7.47

Ref

Ref

Ref

[7.47, 11.83)

0.31 (0.11–0.86)

0.45 (0.25–0.83)

1.34 (0.77–2.32)

≥ 11.83

0.15 (0.04–0.68)

0.34 (0.16–0.74)

0.64 (0.31–1.31)

P for trend

Selenium

< 68.8

Ref

Ref

Ref

[68.8, 104.4)

0.76 (0.29–2.02)

0.93 (0.51–1.67)

0.91 (0.52–1.60)

≥ 104.4

1.30 (0.31–5.45)

0.67 (0.30–1.48)

1.38 (0.71–2.67)

P for trend

Retinol

< 253

Ref

Ref

Ref

[253, 500)

0.84 (0.32–2.18)

0.82 (0.44–1.55)

1.18 (0.72–1.95)

≥ 500

1.91 (0.66–5.52)

1.31 (0.68–2.55)

1.36 (0.77–2.39)

P for trend