Table 1 Characteristics of the participants at baseline
Characteristic | Second booster (n = 328,597) | First booster (n = 234,868) | All participants (n = 563,465) |
|---|---|---|---|
Age (years), mean ± s.d. | 74.4 ± 8.4 | 71.1 ± 8.1 | 73.0 ± 8.4 |
Distribution, n (%) | |||
60–69 years | 111,776 (34) | 123,786 (53) | 235,562 (42) |
70–79 years | 134,656 (41) | 74,717 (32) | 209,373 (37) |
80–100 years | 82,165 (25) | 36,365 (15) | 118,530 (21) |
Female sex, n (%) | 128,927 (52) | 171,422 (55) | 300,349 (53) |
Population sector, n (%) | |||
General Jewish | 310,271 (94) | 198,410 (84) | 508,681 (90) |
Ultra-Orthodox Jewish | 7,608 (2) | 9,587 (4) | 17,195 (3) |
Arab | 10,718 (3) | 26,871 (11) | 37,589 (7) |
SES score, median (IQR) | 7 (2) | 6 (2) | 6 (2) |
BMI (kg m−2), mean ± s.d. | 27.8 ± 4.9 | 28.1 ± 5.2 | 27.9 ± 5.1 |
Clinical risk factors, n (%) | |||
Asthma | 21,502 (7) | 13,974 (6) | 35,476 (6) |
Chronic heart failure | 18,937 (6) | 11,597 (5) | 30,534 (5) |
Chronic kidney failure | 28,587 (9) | 14,896 (6) | 43,483 (8) |
COPD | 19,161 (6) | 13,454 (6) | 32,615 (6) |
Diabetes | 111,481 (34) | 75,753 (32) | 187,234 (33) |
Hypertension | 192,741 (59) | 118,246 (50) | 310,987 (55) |
Ischemic heart disease | 73,225 (22) | 42,364 (18) | 115,589 (21) |
Obesity | 112,692 (34) | 82,053 (35) | 194,745 (35) |
Lung cancer | 2,976 (1) | 1,671 (1) | 4,647 (1) |
History of stroke | 29,638 (9) | 18,975 (8) | 48,613 (9) |
History of TIA | 14,934 (5) | 8,610 (4) | 23,544 (4) |
Current or former smoking | 137,625 (42) | 100,744 (43) | 238,369 (42) |
