fig1

Figure 1. Definition of the GDMT initiation time. (A) The patient did not receive GDMT treatment during hospitalization but started GDMT after discharge, the GDMT initiation time is considered to be the length of the hospital stay; (B) The patient started GDMT treatment at admission or before admission and continued GDMT throughout the entire hospital stay, the GDMT initiation time is considered as 0; (C) The patient initiated GDMT treatment during hospitalization and continued it after discharge, the GDMT initiation time is considered as the interval between the initiation and the admission time; (D) The patient discontinued GDMT treatment during hospitalization and did not resume it, the GDMT initiation time is considered as the interval between the discontinuation and the discharge time; (E) The patient discontinued GDMT treatment during hospitalization and then resumed it during the same hospital stay, the GDMT initiation time is considered as the interval between the resumption and discontinuation times. GDMT: Guideline-directed medical therapy.