PMC:1247560 / 30377-31068 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/1247560","sourcedb":"PMC","sourceid":"1247560","source_url":"https://www.ncbi.nlm.nih.gov/pmc/1247560","text":"Because of the relatively small number of subjects involved (n = 199), our results must be regarded with caution. Many factors can greatly influence the rate of acute infections. We have assessed several potential confounding factors, but unknown factors might still be present. Specifically, we cannot rule out the possibility that the infants in the lowest exposure group (first quartile) had better general health due to an unknown cause or simply due to chance. This would have resulted in RRs above the unity for the three highest quartiles of exposure without any dose–response association, which is similar to what we observed. This should be kept in mind in interpreting our results.","tracks":[]}