The study, published by the British Medical Journal was first launched among 46,000 British women at an average age of 29 when the survey began 36 years ago.
The participants were divided into two groups, with roughly half of the women taking oral contraceptives.
During 36 years of study, many women backed out from the study, so the investigators used two alternative data sets to get a comparative view of the results.
The University of Aberdeen, author of the study, found no increased risk of cancer among contraceptive users. Instead, the study showed there were reduced risk of up to 12 percent on which the data batch was examined.
