A 2010 peer reviewed study found vaccinated boys had double the autism rate of unvaccinated boys — why has this never been properly followed up?

So I never believed the anti vac people and still don't but do think its strange that statistically significant studied were never followed up on??

I went through the actual data of the Gallagher & Goodman 2010 study and here is what it found.

Across 7,373 boys from the National Health Interview Survey 1997-2002:

• 9 out of 1,267 vaccinated boys developed autism — 0.71%
• 22 out of 6,114 unvaccinated boys developed autism — 0.36%

Odds ratio 3.0, p = 0.031. Statistically significant. After controlling for race, maternal education, and household structure.

The study does not claim causation. It finds a statistically significant association and calls for larger follow up research. That follow up has never been done at adequate scale with proper controls.

There may be additional confounding variables not captured in the model. That is a legitimate scientific question. But the study is intact, the data is real, and the result is statistically significant.

Dismissing this debate entirely seems premature when the definitive study has never been done.