Table 2.
Comparison of the clinical characteristics of fully vaccinated and non-vaccinated hospitalized COVID-19 patients cohorts
| Fully vaccinated cohort | Non-vaccinated COVID-19 patients cohorts |
|||
|---|---|---|---|---|
| Karagiannidis et al. [17] | Myers et al. [18] | Petrilli et al. [19] | ||
| No. of patients | 152 | 10 021 | 377 | 2741 |
| No. of hospitals | 17 | 920 | 21 | 4 |
| Time period | January–April 2021 | February–April 2020 | March 2020 | March–April 2020 |
| Country | Israel | Germany | California, USA | New York, USA |
| Inclusion | All fully vaccinated patients with PCR-confirmed COVID-19 and admitted to hospital | All patients with PCR-confirmed COVID-19 and admitted to hospital | All patients with PCR-confirmed COVID-19 and admitted to hospital | All patients with PCR-confirmed COVID-19 and admitted to hospital |
| Age (years), mean ± SD or median (IQR) | 71 ± 14.3 | 68 ± 17.3 | 61 (50–73) | 63 (51–74) |
| Hypertension | 71% | 55.6% | 43.5 | 62% |
| Diabetes mellitus | 48% | 27.9% | 31.3 | 34.7% |
| Heart failure | 32% | 19.6% | 5.8 | 12.8% |
| Chronic lung disease | 24% | 13.6% | 7.4 | 16.5% |
| Chronic kidney disease | 27% | 22.8% | 12.7 | 21.2% |
| BMI >30 kg/m2 | 32% | 5.9% | NR | 39.5% |
| Cancer | 24% | NR | 4.8 | 10.8% |
Abbreviations: BMI, body mass index; COVID-19, coronavirus disease 2019; IQR, interquartile range; NR, not reported; SD, standard deviation.