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Madagascar Health and Environmental Research study in north-eastern Madagascar (MAHERY)
Madagascar Health and Environmental Research study in north-eastern Madagascar logo
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Sample details

The MAHERY study was set up in 2004 to understand the human health impacts of environmental change (e.g., deforestation, unsustainable hunting, biodiversity loss, climate change, etc.) in Madagascar. The current study, set in north-eastern Madagascar, is divided into two communities (A and B) and two cohorts (1 and 2). Cohort 1 was formed in 2008 and conducted within Community A (near Makira Natural Park), consisting of 28 households. It focused primarily on pre-adolescent children (12 years of age and younger) and excluded girls who had reached menarche. Cohort 2 was formed in 2013 and included Community A, where Cohort 1 was conducted, but also expanded to Community B (approximately 10 km west of Community A, more embedded within the rainforest). The initial 28 households enrolled in Cohort 1 were expanded to 95 households in Community A, and an additional 57 households were enrolled in Community B.

Study design
Household panel

Number of participants at first data collection

28 (households)

Age at first data collection

Varied (participants)

Participant year of birth

Varied (participants)

Participant sex
All

Representative sample at baseline?
No

Sample features

Adolescents
Dataset details

Country

Madagascar

Year of first data collection

2008

Primary Institutions

Harvard University

University of California, Berkeley (UC Berkeley)

Links

mahery.org/

Profile paper DOI

doi.org/10.1093/ije/dyx071

Funders

Bill & Melinda Gates Foundation

Department for Environment, Food & Rural Affairs (Defra)

Margot Marsh Biodiversity Foundation

Mohamed bin Zayed Species Conservation Fund

National Geographic Society

Ongoing?
Yes

Data types collected

Quantitative data collection
  • Activity log (e.g. food, sleep, exercise)
  • Interview – face-to-face
  • Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
Qualitative data collection
  • None
Neuroimaging data collection
  • None
Linked or secondary data
  • None
Features

Engagement

  • Community engagement
  • Keywords

    Biological samples/biospecimens
    Community
    Diet and nutrition
    Disease
    Environmental measures
    Genetics
    Household panel
    Socioeconomics
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