Table 2.

Levels of antioxidants among lung cancer cases and controls, by sex

Men
Women
Cases n = 136Controls n = 272Cases n = 71Controls n = 142
Antioxidants, median (interquartile range)
From plasma (ng/mL)
    α-Tocopherol13,898 (9,612-17,881)13,132 (10,227-17,011)13,266 (10,436-17,948)13,912 (11,154-20,354)
    β + γ-Tocopherol1,464 (688-2,724)1,484 (680-2,397)1,635 (857-2,718)1,510 (826-2,753)
    Total tocopherols15,878 (12,457-20,606)15,491 (12,365-18,511)15,481 (13,030-20,703)16,268 (13,637-21,079)
    β-Cryptoxanthin136 (82-223)175 (111-288)174 (90-315)178 (99-310)
    α-Carotene35 (22-61)53 (34-83)45 (24-97)49 (30-87)
    β-Carotene149 (73-273)213 (130-429)214 (126-422)212 (126-391)
    Lutein + zeaxanthin373 (275-520)398 (297-552)406 (261-535)371 (271-499)
    Lycopene261 (171-362)320 (212-432)268 (174-362)248 (173-359)
    Total carotenoids1,202 (895-1,633)1,502 (1,096-1,853)1,317 (863-1,977)1,307 (957-1,722)
    Retinol1,211 (926-1,655)1,191 (996-1,563)1,085 (777-1,427)1,113 (871-1,516)
From serum
    Selenium (μg/g of sodium)0.13 (0.12-0.15)0.13 (0.12-0.15)0.13 (0.12-0.15)0.13 (0.12-0.14)
From urine
    15-Isoprostane F2t (ng/mg of creatinine)4.27 (3.55-5.52)3.77 (2.93-4.86)5.14 (4.22-6.68)4.94 (3.83-6.53)