| Characteristic | Overall N = 2001 |
Booster N = 1001 |
No Booster N = 1001 |
p-value2 |
|---|---|---|---|---|
| NA | ||||
| Age — yr | 67 ± 10 | 66 ± 9 | 68 ± 11 | 0.069 |
| Age group — no. (%) | 0.3 | |||
| ≥65 yr | 102 (51) | 55 (55) | 47 (47) | |
| 50–64 yr | 98 (49) | 45 (45) | 53 (53) | |
| Female sex — no. (%) | 0.8 | |||
| Female | 90 (45) | 46 (46) | 44 (44) | |
| Male | 110 (55) | 54 (54) | 56 (56) | |
| Population sector — no. (%) | 0.8 | |||
| Arab population | 62 (31) | 31 (31) | 31 (31) | |
| General Jewish population | 60 (30) | 28 (28) | 32 (32) | |
| Ultra-Orthodox Jewish population | 78 (39) | 41 (41) | 37 (37) | |
| Clinical risk factors — no. (%) | ||||
| Diabetes | 106 (53) | 50 (50) | 56 (56) | 0.4 |
| Chronic obstructive pulmonary disease | 96 (48) | 53 (53) | 43 (43) | 0.2 |
| Asthma | 91 (46) | 46 (46) | 45 (45) | 0.9 |
| Chronic kidney failure | 107 (54) | 62 (62) | 45 (45) | 0.016 |
| Hypertension | 109 (55) | 54 (54) | 55 (55) | 0.9 |
| Ischemic heart disease | 102 (51) | 49 (49) | 53 (53) | 0.6 |
| Chronic heart failure | 98 (49) | 47 (47) | 51 (51) | 0.6 |
| Obesity | 89 (45) | 49 (49) | 40 (40) | 0.2 |
| History of smoking | 122 (61) | 60 (60) | 62 (62) | 0.8 |
| 1 Mean ± SD; n (%) | ||||
| 2 Wilcoxon rank sum test; Pearson’s Chi-squared test | ||||