Calcium intake may explain the reduction of colorectal cancer odds by dietary selenium - a case-control study in Poland

Table 3 Dietary selenium-calcium interplay in the risk of colorectal cancer (CRC). Stratum specified odds ratios with 95% confidence intervals for multivariable logistic regression^a which includes a considered exposure (dietary selenium intake) and an effect modifier (dietary calcium intake)

Calcium Selenium	< 1000 mg/day	1000 to < 1500 mg/day	> = 1500 mg/day
< 60 μg/day	1 (ref.)	0.711 (0.408–1.237)	1.109 (0.306–4.016)
60 to < 80 μg/day	0.634 (0.435–0.923)	0.767 (0.433–1.358)	0.296 (0.091–0.959)
≥80 μg/day	0.419 (0.211–0.830)	0.452 (0.225–0.908)	0.091 (0.025–0.328)

^aadjusted for age [years], sex, BMI [kg/m²], pure alcohol consumption [g/week], average adult lifetime leisure-time physical activity [METs-h/week], smoking (non smoker, past smoker, current smoker), fish consumption [yes/no], total dietary fibre [g/day], vitamin C [mg/day] and vitamin E [mg/day], taking mineral supplements [yes/no]

ISSN: 2055-0928