Cancer Prevention Study
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The Cancer Prevention Study (frequently abbreviated CPS) is the name of a series of cohort studies conducted in the United States by the American Cancer Society.
The first Cancer Prevention Study, known as CPS-I, recruited subjects between October 1959 and February 1960. This study included more than 1 million men and women.[1] The participants were followed until 1972.[2] The study showed that the increase in lung cancer mortality rates in women during the study's time period occurred only in smoking women.[2] It has been described as "a key guide to national policy and changing public attitudes" with regard to the link between cigarette smoking and lung cancer.[3]