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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: Med Care. 2018 Aug;56(8):673–678. doi: 10.1097/MLR.0000000000000940

Figure 1. Changes in the proportion of the three grouped 30-day readmission diagnoses, overall and stratified by age group.

Figure 1

Overall, there was a non-linear U-shaped change in the proportion of respiratory-related conditions (red) as the readmission diagnosis with an inflection point at day 8 after discharge. The proportion of cardiac-related conditions (yellow) had a similar non-linear pattern with inflection points at day 6 and day 22. By contrast, the proportion of the other conditions (blue) had a different pattern with an inflection point at day 6. Compared to patients aged 65-84 years, those aged ≥85 years appeared to have a greater magnitude of changes, with delayed inflection points for the other conditions (at days 3 and 12).

Marks (×) indicate the infliction points.