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Table 1 OBS components

From: Association between oxidative balance score and rheumatoid arthritis in female: a cross-sectional study

OBS components

Property

0

1

2

DOBS components

    

 Dietary fiber (g/d)

A

< 11.3

11.3–17.4

≥ 17.4

 Carotene (mcg/d)

A

< 688.5

688.5-2488.147

≥ 2488.147

 Riboflavin (mg/d)

A

< 1.3595

1.3595–1.96025

≥ 1.96025

 Niacin (mg/d)

A

< 16.59475

16.59475–23.6026

≥ 23.6026

 Total folate (mcg/d)

A

< 261.5

261.5–389

≥ 389

 Vitamin B6 (mg/d)

A

< 1.3071

1.3071–1.9224

≥ 1.9224

 Vitamin B12 (mcg/d)

A

< 2.576

2.576–4.44

≥ 4.44

 Vitamin C (mg/d)

A

< 40.2

40.2-90.492

≥ 90.492

 Vitamin E (mg/d)

A

< 5.075

5.075-

≥ 7.985

 Calcium (mg/d)

A

< 624.083

624.083

≥ 937

 Magnesium (mg/d)

A

< 208.5

208.5–290

≥ 290

 Zinc (mg/d)

A

< 7.21

7.21-10.319

≥ 10.319

 Copper (mg/d)

A

< 0.851

0.851–1.2024

≥ 1.2024

 Selenium (mcg/d)

A

< 76.35

76.35-108.292

≥ 108.292

 Iron (mg/d)

P

≥ 14.015

9.776–14.015

< 9.776

 Total fat (g/d)

P

≥ 76.465

56.861–76.465

< 56.861

LOBS components

    

 Physical activity (MET-minute/week)

A

< 600

600–3000

≥ 3000

 Alcohol (g/d)

P

≥ 15

0–15

0

 Body mass index (kg/m2)

P

≥ 30.000

25.000–30.000

< 25.000

 Cotinine (ng/mL)

P

≥ 0.096

0.015–0.096

< 0.015

  1. A for the antioxidant, P for the pro-oxidant