Table 1.
Demographic characteristics and ICSRs after receiving the mRNA-based COVID-19 vaccines (n = 555,033).
| Characteristics | Pfizer–BioNTech Vaccine (BNT162b2) (n = 266,369) |
Moderna Vaccine (mRNA-1273) (n = 288,664) |
|||
|---|---|---|---|---|---|
| Serious ICSR (n = 28,267) |
Non-Serious ICSR (n = 238,102) |
Serious ICSR (n = 23,231) |
Non-Serious ICSR (n = 265,433) |
||
| n (%) | n (%) | n (%) | n (%) | ||
| Sex | Female | 15,368 (54.4) | 172,592 (72.5) | 12,132 (52.2) | 196,952 (74.2) |
| Male | 12,899 (45.6) | 65,510 (27.5) | 11,099 (47.8) | 68,481 (25.8) | |
| Age (years) | Average ± SD | 60.9 ± 19.0 | 48.4 ± 16.7 | 63.0 ± 18.5 | 52.5 ± 17.5 |
| 18–64 | 14,784 (52.3) | 192,886 (81.0) | 10,907 (47.0) | 187,333 (70.6) | |
| over 65 | 13,483 (47.7) | 45,216 (19.0) | 12,324 (53.1) | 78,100 (29.4) | |
| Time to onset of AEFIs (days) | 0–7 | 12,004 (42.5) | 194,233 (81.6) | 10,612 (45.7) | 199,417 (75.1) |
| >7 | 15,398 (54.5) | 32,432 (13.6) | 11,934 (51.4) | 51,702 (19.5) | |
| Unknown | 865 (3.1) | 11,437 (4.8) | 685 (3.0) | 14,314 (5.4) | |
| Emergency room or urgent care visit | Visit | 12,024 (42.5) | 29,810 (12.5) | 9041 (38.9) | 22,932 (8.6) |
| No visit | 16,243 (57.5) | 208,292 (87.5) | 14,190 (61.1) | 242,501 (91.4) | |
| Doctor or other healthcare provider office/clinic visit | Visit | 8005 (28.3) | 55,531 (23.3) | 5915 (25.5) | 50,206 (18.9) |
| No visit | 20,262 (71.7) | 182,571 (76.7) | 17,316 (74.5) | 215,227 (81.1) | |
| Prognosis after the AEFIs | Recovered | 4734 (16.8) | 79,115 (33.2) | 4639 (20.0) | 97,522 (36.7) |
| Not recovered | 14,290 (50.6) | 94,345 (39.6) | 11,226 (48.3) | 90,091 (33.9) | |
| Unknown | 9243 (32.7) | 64,642 (27.2) | 7366 (31.7) | 77,820 (29.3) | |
| Top 5 comorbidity * | Hypertension | 6247 (22.1) | 23,523 (9.9) | 5215 (22.5) | 24,228 (9.1) |
| Type 2 diabetes mellitus | 3470 (12.3) | 10,763 (4.5) | 2992 (12.9) | 11,357 (4.3) | |
| Hyperlipidemia | 3028 (10.7) | 8912 (3.7) | 2543 (11.0) | 9485 (3.6) | |
| Asthma | 1428 (5.1) | 14,640 (6.2) | 1068 (4.6) | 13,541 (5.1) | |
| Hypothyroid disease | 1339 (4.7) | 8756 (3.7) | 1206 (5.2) | 8682 (3.3) | |
| Unknown or vague description | 12,751 (45.1) | 130,241 (54.7) | 10,907 (47.0) | 168,965 (63.7) | |
* A report may contain more than one comorbidity.