@brianjarvis Exactly! Actually looking at the data takes time and expertise that most of us don't have.

Those PowerPoint-style slides you shared are "data storytelling" (as we called it in my international-aid work) using carefully-curated key figures, rather than a deep dive into the messy source research and data.

Data storytelling makes the information more accessible for cancer patients — which is a very good thing — but it also introduces the biases of the person or org creating the slides, and removes the key figures from their original contexts (including the researchers' varying goals, methodologies, and caveats). You can tell many different stories using the same data, depending on what you decide to highlight.