Table 5.
Demographic characteristics, comorbid conditions, and intensive care unit (ICU) admission of hospitalized for SARS-CoV-2, stratifying by death within 30 days from the first positive swab and waves.
| First Wave (1 March–15 April 2020) |
Second Wave (15 October–15 December 2020) |
Third Wave (1 March–15 April 2021) |
|||||
|---|---|---|---|---|---|---|---|
| No Death N/Day a (%) |
Death N/Day a (%) |
No Death N/Day a (%) |
Death N/Day a (%) |
No Death N/Day a (%) |
Death N/Day a (%) |
p-Value b | |
| Age group | |||||||
| ≤65 | 54.2 (46.7%) | 4.4 (9.1%) ***,c | 61.3 (37.4%) | 4.2 (7.8%) ***,d | 61.5 (41.9%) | 3.8 (10.8%) ***,e | <0.001 |
| 66–75 | 26.6 (22.9%) | 9.3 (19.1%) | 39.2 (23.9%) | 8.8 (16.2%) | 39.6 (26.9%) | 8.1 (23.2%) | |
| 76–85 | 25.3 (21.9%) | 20.5 (42.0%) | 44.2 (26.9%) | 22.8 (41.7%) | 34.2 (23.3%) | 13.6 (38.8%) | |
| 86+ | 9.9 (8.5%) | 14.5 (29.8%) | 19.3 (11.8%) | 18.8 (34.3%) | 11.6 (7.9%) | 9.5 (27.2%) | |
| Gender | |||||||
| F | 47.8 (41.2%) | 18.3 (37.6%) **,c | 68.1 (41.5%) | 21.2 (38.8%) **,d | 62.7 (42.7%) | 13.8 (39.3%) *,e | 0.49 |
| M | 68.3 (58.8%) | 30.4 (62.4%) | 95.8 (58.5%) | 33.4 (61.2%) | 84.3 (57.3%) | 21.2 (60.7%) | |
| Charlson Comorbidity Index | |||||||
| 0 | 63.2 (54.5%) | 16.4 (33.7%) ***,c | 82.9 (50.5%) | 19.0 (34.7%) ***,d | 82.1 (55.8%) | 13.8 (39.4%) ***,e | 0.006 |
| 1 | 29.6 (25.5%) | 14.5 (29.8%) | 45.9 (28.0%) | 15.7 (28.8%) | 38.6 (26.3%) | 10.0 (28.7%) | |
| 2–3 | 17.9 (15.4%) | 12.4 (25.6%) | 27.3 (16.7%) | 14.0 (25.7%) | 21.4 (14.6%) | 8.0 (22.9%) | |
| 4+ | 5.3 (4.6%) | 5.3 (10.9%) | 7.9 (4.8%) | 5.9 (10.8%) | 4.9 (3.3%) | 3.1 (8.9%) | |
| ICU admission | |||||||
| No | 87.3 (75.2%) | 32.5 (66.9%) ***,c | 128.0 (78.0%) | 36.9 (67.6%) ***,d | 115.2 (78.4%) | 22.7 (65.0%) ***,e | 0.18 |
| Yes | 28.7 (24.8%) | 16.1 (33.1%) | 36.0 (22.0%) | 17.7 (32.4%) | 31.8 (21.6%) | 12.3 (35.0%) | |
a N/day average number of cases per day; b Comparisons of dead patients among the three waves tested by Chi-square or Fisher test; c Comparison between alive and dead patients during the first wave tested by Chi-square or Fisher test; d Comparison between alive and dead patients during the second wave tested by Chi-square or Fisher test; e Comparison between alive and dead patients during the third wave tested by Chi-square or Fisher test; *** p < 0.001; ** p < 0.01; * p < 0.05.