February 20, 2010, 10:42 am
Visualizing More Affordable Care
By Henry Woodbury
The February 2010 issue of Obstetrics & Gynecology features work by Dynamic Diagrams for an article titled Alternatives to a Routine Follow-Up Visit for Early Medical Abortion. The article describes a protocol for assessing a woman’s health after an abortion without routine use of ultrasonography. To quote from the abstract:
We constructed five model algorithms for evaluating women’s postabortion status, each using a different assortment of data. Four of the algorithms (algorithms 1–4) rely on data collected by the woman and on the results of the low-sensitivity pregnancy test. Algorithm 5 relies on the woman’s assessment, the results of the pregnancy test, and follow-up physician assessment (sometimes including bimanual or speculum examination).
A sponsor of the study, Gynuity Health Products, asked Dynamic Diagrams to visualize the data. Our explanation shows the results for the current standard of care and five algorithms tested by the researchers. For each approach we show the total number of cases, the number of women returning to a clinic for a follow-up visit, and the number of women receiving a follow-up ultrasound. In contrasting colors we show specific additional treatment cases in two columns; those identified by the protocol on the left vs. those not necessarily identified by the protocol on the right. In large type we provided the percentage of the number of follow-up ultrasounds to the total number of cases. This combination of rich data points and a key percentage makes it easy to compare the effectiveness of each algorithm. A sample of this visual language (without labels) is shown below:
While we cannot reprint the full text of article, we can provide the visual explanation used as Figure 2: Algorithms identifying women who received additional care after medical abortion (PDF, 409K).
