Refrigerators Correlated to Drop in Stomach Cancer Deaths (Percent Decrease)
graph by Iryna Suprun; slow reveal by Jenna Laib
(Slide deck includes notes and questions to elicit discourse)
Type of Graph: line graph
Purpose
This slow reveal is designed to support analysis and discussion of both the data and the design choices. The questions in the slidedeck invite learners to examine trends, relationships, and possible interpretations. This graph invites students to notice patterns, estimate values, dig into percentage decrease, and discuss correlation and causation.
About This Graph
This visualization is not provided for reuse or redistribution. Readers and educators are encouraged to view the original visualization in its published context.
Original Visualization:
Suprun, Iryna. “Refrigerator Against Stomach Cancer.” Voronoi: October 24, 2025.
Data Sources:
Our World In Data. “Stomach Cancer Death Rate.”
WHO Mortality Database (2025) – with minor processing by Our World in Data. “Stomach cancer death rate” [dataset]. WHO Mortality Database, “WHO Mortality Database” [original data]. Retrieved November 19, 2025 from https://archive.ourworldindata.org/20250909-093708/grapher/stomach-cancer-death-rate.html (archived on September 9, 2025).
Sobrero, Maurizio. “The co-evolution of technology and structures : the European major home appliance industry, 1945-1992”
https://akiba.or.jp/wp_en/archives/history03/

In The Classroom
There are many different mathematical connections that can be made to this data and data visualization.
Potential Math Content: line graphs, estimating values, percentage decrease, percentages, correlation vs causation, trends over time
Potential Content Connections: health, public health, cancer
Sustainable Development Goal #3: Good Health & Well Being
Discover more from Slow Reveal Graphs
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