Corrections
Odds ratios should be avoided when events are common
BMJ 1998; 317 doi: https://doi.org/10.1136/bmj.317.7172.1595p (Published 05 December 1998) Cite this as: BMJ 1998;317:1595Article usage
Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.