Table 1 Total patients in the database and patients ≥ 80 years of age hospitalized with COVID-19 included in registry during the first and successive waves

Total patients in the SEMI-COVID-19 Registry database

17123

4338

21461

 Patients 10–79 years old

12578(73.5)

2930 (67.5)

15,508 (72.3)

 <0.001

 Patients ≥ 80 years old

4545 (26.5)

1408 (32.5)

5953 (27.7)

  80–84 years

1772 (10.3)

499 (11.5)

2271(10.6)

 <0.001

  85–89 years

1622 (9.5)

484 (11.2)

2106 (9.8)

 <0.001

  90–94 years

864 (5.0)

321 (7.4)

1185 (5.5)

 <0.001

   ≥ 95 years

287 (1.7)

104 (2.4)

391 (1.8)

 <0.001