Fig. 1.

Flowchart of the selection process for the final patient sample shows that inclusion criteria were applied to the National Inpatient Sample 2020 database. All eligible patients were matched 1:3 based on propensity scoring to generate the TTS vs non-TTS comparison cohorts.

ICD-10-CM, International Classification of Diseases, Tenth Revision, Clinical Modification; TTS, takotsubo syndrome.