I noticed that not all healthy control participants seem to have answered the Fox Insight questionnaires in the microbiome sub study. As I understand it, the majority of healthy controls were from data that 23andMe collected separately. I understand that individuals were prescreened to be age and sex, but I am wondering if it is possible to gain more information about the individuals specifically? I am trying to randomly select a group of healthy controls to match with a PD group.
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I’d refer to the Stagaman et al. (2024) publication for details on the controls. The Stagaman Survey Data (2024) may help with selecting a matching cohort.
Some additional resources that might be useful are:
Thanks, @mattk! @MYSchmidt, one distinction I might make (and Matt can correct me if I’m misremembering) is that all of the health controls were recruited via 23andMe. This is because participants of the PD Microbiome sub-study–at least on the MJFF side–were primarily recruited from the pool of prior FIGS (Fox Insight Genetic Substudy, of which a subset of data is available under Tier 1 access as Genetic) participants, and FIGS’ eligibility criteria ruled out anyone without PD (though a few seem to have slipped through…).