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. 2021 Jul 20;326(3):1–8. doi: 10.1001/jama.2021.8694

Figure 2. Stock of Medical Debt by County and Zip Code Income Decile.

Figure 2.

B, The dots are means, the black horizontal lines are medians, the boxes are the interquartile ranges, and the whiskers are the range (10-90) for stock by zip code income decile as of June 2020. The zip codes were assigned to income deciles using per-capita income estimates from the 5-year American Community Survey (2014-2018), weighting each zip code by its population in the American Community Survey. The median number of zip codes in each income decile was 3474 (interquartile range, 2398-3762) in 2020.