Beware the “Texas sharp shooter” in rate ratios of progressionBMJ 2007; 334 doi: https://doi.org/10.1136/bmj.39136.475313.FA (Published 01 March 2007) Cite this as: BMJ 2007;334:440
- Anna C Goodman (firstname.lastname@example.org)
- London School of Hygiene and Tropical Medicine, London WC1E 7HT
Glasziou et al's method of calculating rate ratios of progression (stable unchanging condition before v change shortly after the intervention) is appealing,1 but we need to be wary of a “Texas sharp shooter” effect. This effect is usually associated in epidemiology with the problem of interpreting apparent clusters …
Log in using your username and password
Log in through your institution
Register for a free trial to thebmj.com to receive unlimited access to all content on thebmj.com for 14 days.
Sign up for a free trial