When discussing vaccines with a friend, they brought up a study:

Analysis of health outcomes in vaccinated and unvaccinated children: Developmental delays, asthma, ear infections and gastrointestinal disorders by Brian S. Hooker and Neil Z Miller

This article claims the study is peer reviewed, but I'm not sure how to verify that.

Is this study peer reviewed?

  • Please don't post pseudo-answers in the comments.
    – Oddthinking
    Commented Jan 2, 2023 at 8:26
  • If it were an actual study and properly peer-reviewed then it wouldn't have been published, would it? Commented Jan 2, 2023 at 14:38

1 Answer 1


It seems to be peer-reviewed, but that's not really conclusive of the study's quality. The article itself admits in its abstract that it's only looking at correlation, not causation:

In this study, which only allowed for the calculation of unadjusted observational associations

They also used a convenience sample, children that showed up at 3 clinics. And they also admit that:

There are undoubtedly demographic differences within the two groups studied (vaccinated versus unvaccinated), especially regarding socioeconomic status and maternal education.

One of the authors of the paper discloses (in it) that he's on the board of Children's Health Defense, an organization known for campaigning against vaccines, more or less openly; e.g. that wiki page says a WaPo investigation concluded they funded Facebook ads drumming up the risks of vaccines. The other author of the paper in question is affiliated with a more obscure organization, but its name probably speaks for itself: Thinktwice Global Vaccine Institute. As such, this paper is the kind of information you'd expect such groups to focus on...

The journal itself, which has a wiki page shows that it's a relatively new journal, with papers that (insofar) aren't cited often. And it seems to be less selective in the kind of papers it accepted, in that it is a "mega journal", typically

accepting articles for publication based on whether they are technically sound rather than selecting for perceived importance

And from the journal's own suggestion for related papers, it's easy to find a similar (2019) one on the correlation between HPV vaccines and asthma; an author of this other paper, Mark Geier is better known because his older publication have been roundly criticized (for their wrong conclusions and questionable methodology) by some high-profile academic/medical association, e.g. by the Institute of Medicine or the American Academy of Pediatrics.

N.B., as it turns out David Gorski's blog has (much) longer critical piece on the 2020 study.

  • The wiki page refers to Sage Open, which is a different journal than Sage Open Medicine. Commented Dec 28, 2020 at 17:39
  • @DavidHammen: good point. The latter seems to be even more obscure scijournal.org/impact-factor-of-open-medicine.shtml However, the "mega journal" aspect seems to apply as well "SAGE Open Medicine does not limit content due to page budgets or thematic significance. Papers are subjected to rigorous peer review and are selected based on whether the research is sound and deserves publication" Commented Dec 28, 2020 at 19:13
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    And how are vaccines supposed to be related to head injury? If anything that seems like a control--which the study failed badly. Commented Jan 2, 2023 at 21:47
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    @LorenPechtel In general that's the difficulty with a bunk science articles. Sometimes the "bunk" part is buried in relatively small details that take a long time and careful reading to uncover, more time than it takes to promulgate the bunk research. Commented Jan 5, 2023 at 19:53

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