2.1. Study design and setting
A single-center prospective cross-sectional study was conducted between August 1st, 2018, and February 28th, 2020 in the cardiology outpatient department of the National Institute of Cardiology ”Ignacio Chávez” a tertiary hospital in Mexico City that provides high specialty cardiovascular care to uninsured population. This study complied with the edicts of the Declaration of Helsinki and was approved by the Institutional Ethics Board (REF. INCAR-DG-DI-CI-003-2022). Informed consent was obtained from all patients. The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions