Viz of the Month: December 2025

Authors: Kristen Savage & Emma Spielfogel

About this viz: This upset chart shows the different California Teachers Study data sources and the distribution of coverage across those data sources. The viz was created by designating whether each participant has data for each respective data source using a 0/1 binary indicator.

The horizontal bar chart on the left of the viz show the total count of participants in each data source. The bar chart at the top of the viz shows the total count of participants with data from all the data sources highlighted in that column. For example, the first column in the top bar chart shows participants with data from Questionnaires 1 - 6 and ambulatory surgery, emergency department, and inpatient discharge data.

Access the code: https://github.com/California-Teachers-Study/cts-viz-of-the-month/tree/main/2025-12