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. 2023 Mar 31;13:5258. doi: 10.1038/s41598-023-31730-5

Table 1.

Information for studies used in our analyses.

Variable Consortium or study PMID Year Total sample size Ethnic groups
Gut microbiota MiBioGen 33462485 2021 18340

European (13266)

Admixed (2571)

Hispanic (1097)

East Asian (811)

Middle-East (481)

African American (114)

Alzheimer’s disease ADc12 19001172 2008 2571

European (2320)

African American (251)

dbGaP phs000168.v2.p2 NIA/LOAD consent 1 and 2 1278 cases/1293 controls
GenADA

17998437

19013250

2008 1577 European (1577)
dbGaP phs000219.v1.p1 799 cases/778 controls

Information for the data used in this study. The Multi-ethnic cohorts of the MiBioGen study include 16 European cohorts (n = 13266), one Middle Eastern cohort (n = 481), one East Asian cohort (n = 811), one American Hispanic/Latin cohort (n = 1097), one African-American cohort (n = 114), and four cohorts of multi-ancestry individuals (n = 2571). The Multi-ethnic cohort of the NIA/LOAD study contains African-American (n = 251) and Caucasian individuals (n = 2320).