Inappropriateness of randomised trials for complex phenomena

doi:10.1136/bmj.330.7482.95

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Are the results of the term breech trial generalisable?

Mary Hannah, director (Mary.Hannah@sw.ca)

University of Toronto Maternal Infant and Reproductive Health Research Unit, Centre for Research in Women's Health, Suite 751,790 Bay Street, Toronto, ON, Canada M6G 1N8

EDITOR—In the term breech trial planned caesarean section was associated with a lower risk of death and initial serious morbidity, for singleton breech babies at term, compared with planned vaginal birth, although no benefit of planned caesarean was evident at 2 years of age.1 2

Kotaska does not believe that these results …