Skip to main content

View full-text article in PMC

. Author manuscript; available in PMC: 2015 Mar 20.

Published in final edited form as: Biomarkers. 2014 Jul 2;19(6):471–480. doi: 10.3109/1354750X.2014.937361

Table 1.

Oxidative balance score (OBS) assignment scheme.

OBS components	Score assignment scheme
Zeaxanthin^a	0=low (1st tertile), 1=medium (2nd tertile); 2=high (3rd tertile)
Cryptoxanthin^a	0=low (1st tertile), 1=medium (2nd tertile); 2=high (3rd tertile)
Lycopene^a	0=low (1st tertile), 1=medium (2nd tertile); 2=high (3rd tertile)
α-carotene^a	0=low (1st tertile), 1=medium (2nd tertile); 2=high (3rd tertile)
β-carotene^a	0=low (1st tertile), 1=medium (2nd tertile); 2=high (3rd tertile)
α-tocopherol^a	0=low (1st tertile), 1=medium (2nd tertile); 2=high (3rd tertile)
γ-tocopherol^a	0=low (1st tertile), 1=medium (2nd tertile); 2=high (3rd tertile)
Ferritin^b	0=high (3rd tertile), 1=medium (2nd tertile); 2=low (1st tertile)
Physical activity	0=low (1st tertile), 1=medium (2nd tertile); 2=high (3rd tertile)
Smoking history	0=current smoker, 2=never smoker
Aspirin	0=never, 2=regular user
Other NSAID	0=never, 2=regular user
Alcohol	0=current drinker, 2=never drinker

NSAID = non-steroidal anti-inflammatory drug (not including aspirin); PUFA = polyunsaturated fatty acids.

^a

Plasma derived measurement.

^b

Serum derived measurement.