Gut microbiome cross-sectional study in African women
AWI-Gen 2 Microbiome Project
1,820 samples from women aged 42-86 across Burkina Faso, Ghana, Kenya, and South Africa (AWI-Gen Wave 2 sub-study), examining the gut microbiome in a cross-sectional design. machine-written summary
Sequencing depth per sample · this project all projects
Sampling design and relatedness
longitudinal
239 of 917 people sampled more than once (1,142 samples; median 5, up to 5 per person) · follow-up median 2.3 y (max 3.2 y) · median interval between samples 5 mo(time from collection dates).
Each row is one person (36 shown of 239); dots are samples at days since that person's first sample.
Prevotella 18.4%Faecalibacterium 3.4%Roseburia 2.9%Vescimonas 2.7%Cryptobacteroides 2.5%Blautia_A 2.3%Ruminococcoides 2.3%Succinivibrio 1.9%Hominicoprocola 1.8%Bacteroides 1.8%Bifidobacterium 1.4%Phocaeicola 1.3%not assigned to a genus 5.4%other genera 51.7%
Genera, mean relative abundance over 1,630 profiled gut samples of this project (Sandpiper SingleM profiles, GTDB R232; low-depth and non-metagenome profiles left out).
Participant engagement and feedback in microbiome projects: a case of AWI-Gen 2. 2026PMID 42517623PMC13483426own_data
Details
Archive description
These data are part of the AWI-Gen 2 Microbiome Project, a large international study of the gut microbiome of approximately 1,800 women from Burkina Faso, Ghana, Kenya, and South Africa.
How this project entered the registry
Classified as human gut / stool shotgun DNA metagenome of adult by sonnet_x2 with confidence 0.75. Assay shotgun_dna.
hoststudy.description · “gut microbiome of approximately 1,800 women”
body sitestudy.description · “gut microbiome of approximately 1,800 women”
life stagestudy.description · “1,800 women from Burkina Faso, Ghana”
Evidence examples (one per field × route)
sample
field
value
route
conf.
source
quote
SAMN43510926
collection_date
2019-12-06
R1
0.90
biosample.attribute:collection_date
2019-12-06
SAMN43510926
country
ZA
R1
0.90
sample.attr.geo_loc_name
South Africa: Agincourt
SAMN43510926
latitude
-24.8200
R1
0.90
biosample.attribute:lat_lon
24.82 S 31.26 E
SAMN43510926
location_locality
Agincourt
R1
0.85
biosample.attribute:geo_loc_name
South Africa: Agincourt
SAMN43523415
location_region
Gauteng
R1
0.60
biosample.attribute:lat_lon
26.24 S 27.84 E
SAMN43527872
location_site
DIMAMO
R1
0.85
biosample.attribute:geo_loc_name
South Africa: DIMAMO
SAMN43510926
longitude
31.2600
R1
0.90
biosample.attribute:lat_lon
24.82 S 31.26 E
SAMN43510926
subject_id
AG001
R1
0.85
sample.attr.participant_id
AG001
Sequencing
1,820 runs over 1,820 samples · mean 4.60 Gbp per run (median 4.56 Gbp, total 8,375.81 Gbp; 1,820 runs with a base count) · layout PAIRED 1,820 · platform ILLUMINA 1,820 · models Illumina NovaSeq 6000 (1,820) · 90% of runs with a Sandpiper profile · first public 2025-01-04