For definitions of the levels of evidence, please see the Preambles to the IARC Handbooks (Primary Prevention, Secondary Prevention).
The Handbooks provide a review of the scientific evidence of the cancer-preventive potential of the agents and activities under evaluation.
It is strongly recommended to consult the complete Handbook on these agents and activities. Significant new information might support a different classification.
EVALUATIONS FOR CANCER-PREVENTIVE CHEMICALS AND ACTIVITIES
EVALUATIONS FOR CANCER SCREENING
EVALUATIONS FOR ALCOHOL POLICIES
EVALUATIONS FOR TOBACCO CONTROL POLICIES
Although care was taken in preparing these lists, mistakes may be present.
If you find an error, please notify us at ihb@iarc.who.int.
Last update: 1 May 2025