We investigated the relation between benign ovarian tumours and lactose amo
ng 746 case women identified at seven New York metropolitan hospitals and 4
04 community controls, age and hospital frequency matched to the expected c
ase distribution. No increase in risk was found for lactose (highest quarti
le versus lowest: adjusted odds ratio = 0.82 (95% CI 0.57-1.20) or for any
other lactose foods. (C) 2000 Cancer Research Campaign http://www.bjcancer.
com.