Figure 1.

Study profile. Note: The continuous line represents the number of cases that met each of the cutoff criteria. Meanwhile, the dashed line informs the number of patients that were removed from the original dataset. The analysis period considered is from February 25, 2020, to April 30, 2021. We considered all hospitalizations in this period and divided them into two waves. The first wave corresponds to the period from February 25, 2020, to November 5, 2020. The second wave corresponds to the period from November 6, 2020, to April 30, 2021. SARS-CoV-2 = Severe acute respiratory syndrome coronavirus 2. RT-PCR = Reverse transcription polymerase chain reaction.