Table 1.

OBS assignment

Component	Score Assignment
Plasma zeaxanthin	0 = low (first tertile), 1 = medium (second tertile), 2 = high (third tertile)
Plasma cryptoxanthin	0 = low (first tertile), 1 = medium (second tertile), 2 = high (third tertile)
Plasma lycopene	0 = low (first tertile), 1 = medium (second tertile), 2 = high (third tertile)
Plasma α-carotene	0 = low (first tertile), 1 = medium (second tertile), 2 = high (third tertile)
Plasma β-carotene	0 = low (first tertile), 1 = medium (second tertile), 2 = high (third tertile)
Plasma α-tocopherol	0 = low (first tertile), 1 = medium (second tertile), 2 = high (third tertile)
Serum ferritin	2 = low (first tertile), 1 = medium (second tertile), 0 = high (third tertile)
Physical activity	0 = low (first tertile), 1 = medium (second tertile), 2 = high (third tertile)
Alcohol use	0 = current drinker, 1 = former drinker/missing, 2 = never drinker
Smoking	0 = current smoker, 1 = former smoker/missing, 2 = never smoked
Aspirin use	0 = no regular user, 1 = unknown/missing, 2 = regular user
NSAID use	0 = no regular user, 1 = unknown/missing, 2 = regular user
Weight status	0 = obese, 1 = overweight, 2 = normal weight

BMI, body mass index; NSAIDs, nonsteroidal anti-inflammatory drugs; OBS, oxidative balance score.

Normal weight = BMI <25 kg/m², overweight = BMI between 25.0 and 29.9 kg/m², and obese = BMI ≥30 kg/m².