A 1-year analysis of adverse events following COVID-19 vaccination in Lebanon: a retrospective study

Table 7 Reported serious cases by system organ class (SOC)

System organ class	Total N = 68 (100%)	PZ N = 55 (80.88%)	AZ N = 13 (19.12%)	p value
Cardiovascular disorders^a	46 (67.6)	38 (69.1)	8 (61.5)	0.743
Nervous system disorders^b	8 (11.7)	6 (10.9)	2 (15.4)	0.643
Infections and infestations^c	7 (10.3)	6 (10.9)	1 (7.7)	1.0
Respiratory, thoracic, and mediastinal disorders^d	2 (3.0)	2 (3.6)	0 (0.0)	1.0
Blood and lymphatic system disorders^f	1 (1.5)	0 (0.0)	1 (7.7)	0.191
Surgical and medical procedures^g	1 (1.5)	0 (0.0)	1 (7.7)	0.191
Immune system disorders^e	3 (4.4)	3 (5.5)	0 (0.0)	1.0

Results are presented as frequency (N) and percentage (%)
System Organ Classes (SOC) are groupings by etiology (such as infections and infestations), manifestation site (such as gastrointestinal disorders) or purpose (such as surgical and medical procedures)
^aIncludes case reports of cardiac arrest, cerebrovascular accident, myocardial infarction, myocarditis, pericarditis, atrial fibrillation, extensive portal vein thrombosis, unstable angina, Kounis syndrome, and thrombotic disorders
^bIncludes case reports of Guillain–Barré syndrome, acute disseminated encephalomyelitis, amyotrophic lateral sclerosis, cerebral hemorrhage, and epilepsy
^cIncludes case reports of pneumonia, acute bronchitis, and sepsis
^dIncludes case reports of dyspnea, polypnea, and pulmonary edema
^eIncludes case reports of acute severe urticaria, anaphylactic shock, and hyperstimulation of the immune system
^fIncludes case reports febrile neutropenia and vaccine-induced immune thrombotic thrombocytopenia (VITT)
^gIncludes case reports of post-surgical bleeding

ISSN: 2052-3211