E.g., the study was not designed or powered to measure the outcome
The study was published in 2010 - interestingly the 1/2 authors is dean of global public health at NYU and a professor of biostats
"The authors do not agree with the retraction." I wonder why?
publichealth.nyu.edu/faculty/melo...
Alex Sundermann, DrPH
A 2010 paper that linked hepatitis B vaccines in infant boys to an increased risk of autism diagnosis was retracted and another study by the same authors is under investigation.
Read more at: https://www.medpagetoday.com/neurology/autism/121745
Research was included in CDC's recent hepatitis B birth vaccination review