Three journals raise doubts on validity of Canadian studies

doi:10.1136/bmj.328.7434.257

Correction for White, BMJ 328 (7431) 67.

BMJ 2004;328:257 (31 January), doi:10.1136/bmj.328.7434.257

Correction

Three journals raise doubts on validity of Canadian studies

Three errors crept into this news article by Caroline White(10 January, p 67). In the sixth paragraph we inadvertentlyreferred to datasets in two papers being the same, instead oftwo sets of patients being the same. In the following paragraph,we referred to the number of digits remembered by patients aspart of a memory test. The numbers given in the submitted paperrefer to scores, however, so cannot be reliably converted intodigits. The relevant sentence should therefore read: "One wasthe implausibly high score relating to the number of digitsremembered by the participants." Lastly, Dr Jack Strawbridgeis director of faculty relations (not labour relations) at MemorialUniversity.