Compliance with requirement for disclosure of financial competing interests in randomised trials published April 1999 to March 2000 Requirement Disclosure Source of study support:   Overall 238/268   Industry sponsored 100   Non-industry sponsored 135   Not disclosed 30 Author-sponsor relationship*:   Overall  69/100   Employment 30   Consultant/honorarium 22   Grants 18   Educational/speakers bureau 7   Stock ownership 7   Advisory board 5   Patent/licences 1 Role of study sponsor*   8/100 * Disclosure of author-sponsor relationship and role of study sponsor applicable to only 100 studies with industry support. Out of the 69 studies that disclosed author-sponsor relationship. Total number of studies is greater than 69 because 24 studies had multiple relations.