Table 2.
Association between vaccination against COVID-19 and mortality in bivariate analysis.
| Variables | Mortality after 28 Days | Mortality after 90 Days | ||||||
|---|---|---|---|---|---|---|---|---|
| No (n = 961) | Yes (n = 592) | p | No (n = 939) | Yes (n = 614) | p | |||
| n (%) | n (%) | n (%) | n (%) | |||||
| Vaccinated * | 0.003 | 0.012 | ||||||
| Unvaccinated | 903 (61.1) | 576 (38.9) | 884 (59.8) | 595 (40.2) | ||||
| At least one dose | 58 (78.4) | 16 (21.6) | 55 (74.3) | 19 (25.7) | ||||
| Age (years) ** | 50.4 ± 16.2 | 63.1 ± 14.7 | 0.001 | 50.1 ± 16.2 | 63.1 ± 14.6 | 0.001 | ||
| Sex * | 0.001 | 0.001 | ||||||
| Female | 447 (69.1) | 200 (30.9) | 437 (67.5) | 210 (32.5) | ||||
| Male | 514 (56.7) | 392 (43.3) | 502 (55.4) | 404 (44.6) | ||||
| Symptoms at the onset of the disease | ||||||||
| Dyspnea * | 0.001 | 0.001 | ||||||
| No | 564 (78.9) | 142 (20.1) | 556 (78.7) | 150 (21.3) | ||||
| Yes | 397 (46.9) | 450 (53.1) | 383 (45.2) | 464 (54.8) | ||||
| Fever * | 0.009 | 0.013 | ||||||
| No | 636 (64.3) | 353 (35.7) | 621 (62.8) | 368 (37.2) | ||||
| Yes | 325 (57.6) | 239 (42.4) | 318 (56.4) | 246 (43.6) | ||||
| Cough * | 0.001 | 0.001 | ||||||
| No | 198 (48.1) | 213 (51.8) | 190 (46.2) | 221 (53.8) | ||||
| Yes | 763 (66.8) | 379 (33.2) | 749 (65.6) | 393 (34.4) | ||||
| Comorbidity | ||||||||
| Hypertension * | 0.001 | 0.001 | ||||||
| No | 945 (65.0) | 509 (35.0) | 923 (63.5) | 531 (36.5) | ||||
| Yes | 14 (14.4) | 83 (85.6) | 14 (14.4) | 83 (85.6) | ||||
| Type 2 diabetes * | 0.001 | 0.001 | ||||||
| No | 953 (62.7) | 568 (37.3) | 931 (61.2) | 590 (38.8) | ||||
| Yes | 6 (20.0) | 24 (80.0) | 6 (20.0) | 24 (80.0) | ||||
| Chronic kidney disease * | 0.001 | <0.001 | ||||||
| No | 955 (62.3) | 578 (37.7) | 934 (60.9) | 599 (39.1) | ||||
| Yes | 4 (22.2) | 14 (77.8) | 3 (16.7) | 15 (83.3) | ||||
| Obesity * | <0.001 | <0.001 | ||||||
| No | 954 (62.9) | 562 (37.1) | 932 (61.5) | 584 (38.5) | ||||
| Yes | 5 (14.3) | 30 (85.7) | 5 (14.3) | 30 (85.7) | ||||
| Cancer * | 0.822 | 0.453 | ||||||
| No | 938 (61.9) | 578 (38.1) | 918 (60.5) | 598 (39.5) | ||||
| Yes | 21 (60.0) | 14 (40.0) | 19 (54.3) | 16 (45.7) | ||||
| Neurological * | <0.001 | <0.001 | ||||||
| No | 956 (62.6) | 570 (37.4) | 934 (61.2) | 592 (39.8) | ||||
| Yes | 3 (12.0) | 22 (88.0) | 3 (12.0) | 22 (88.0) | ||||
* p-value obtained through chi-squared test. ** p-value obtained through Student’s t-test for independent samples and equal two-tailed variances.