Conflict of Interest in Oncology Publications: A Survey of Disclosure Policies and Statements

Most oncology journals had conflict-of-interest policies, with 94% requiring financial disclosure and 42% also seeking nonfinancial disclosures. However, only 61% of higher-impact journals consistently published disclosure statements in over 90% of articles, and no nonfinancial conflicts were published in any reviewed article. Only 52% of journals published disclosures for editorials and commentaries. Given these inconsistencies in disclosure practices across oncology journals, standardized, comprehensive conflict-of-interest reporting policies are necessary.