Letters
Macrolides and infantile hypertrophic pyloric stenosis
Authors’ reply to de Vries
BMJ 2014; 349 doi: https://doi.org/10.1136/bmj.g5206 (Published 19 August 2014) Cite this as: BMJ 2014;349:g5206
- Marie Lund, PhD student1,
- Björn Pasternak, postdoctoral fellow1,
- Jan Wohlfahrt, chief statistician1,
- Mads Melbye, professor12
- 1Department of Epidemiology Research, National Health Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
- 2Department of Medicine, Stanford University School of Medicine, Stanford, USA
- mxd{at}ssi.dk
We thank de Vries for his valuable comments about our study.1 2 He states that the finding of an incidence rate ratio of 29.8 (95% confidence interval 16.4 to 54.1) for exposure from infant macrolide use during the first two weeks after birth is “either a very strong association or too good to be true.”
This association …
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