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Let’s talk about impact

The eventual impact that Data Zetu is trying to achieve is that data is more frequently and effectively used for decision-making. Our efforts focus particularly on supporting decisions that improve health, economic growth, and gender outcomes in local communities and governments in Tanzania—and specifically in three priority PEPFAR districts that have a high incidence of HIV/AIDs.

We use the term “impact” carefully. Lasting impact often involves complex culture change that takes time, so we use five outcome measures to ensure that Data Zetu’s legacy can achieve that impact. Learn about them here.

You can also browse our impact through these following pages:

Highlights of our impact (this page)
Data use stories
Indicator table
Insights from our data



The fight against HIV/AIDS will be more successful if people feel that evidence can and should inform their decisions. 59% of trainees in our target districts—subnational areas of highest priority to PEPFAR—report a positive change in their perceived value of data after working with Data Zetu. Track other progress towards our indicators here.
Millions of orphaned and vulnerable children (OVCs) are affected by HIV/AIDS in sub-Saharan Africa. Working with the dLab, we provided data literacy training to The Mango Tree, an NGO in rural Tanzania supporting OVCs. This led to a “seismic shift” towards improved forecasting for service delivery, budget allocations, and beneficiary identification. Track other data use stories to fight HIV/AIDS here.
Adolescent girls and young women (AGYW), who account for 74% of new in HIV infections in the region, have a key role to play in combating HIV/AIDS. That’s why 51% of the people we’ve engaged are youth, and nearly two-thirds of our female participants (61%) are youth. Learn more insights here.


DISCLAIMER: The data and insights presented here are not necessarily statistically representative and are not published as official statistics. Rather, they represent a small subsection of the population who have interacted with Data Zetu activities and voluntarily provided their feedback to inform our impact monitoring efforts.