Table 2.

Association of the risk factors with adverse effects after receiving the mRNA Pfizer vaccine.

Factors		Total (n)	Side effects	Odds ratio	P-value
Age group	<35 years	210	118 (56.2%)	0.539 (0.369–0.787)	0.001
	35–54 years	413	304 (73.6%)	1.172 (0.832–1.649)	0.363
	≥55 years	267	188 (70.4 %)	1
Gender	Male	391	264 (67.5%)	1.088 (0.818–1.446)	0.562
	Female	499	346 (69.3%)
Educational status	Highschool/diploma	431	278 (64.5%)	1.283 (1.056–1.559)	0.014
	Graduate/post graduate	459	332 (72.3%)
Income status	≤ 10,000 AED	278	174 (62.6%)	1.568 (1.204–2.041)	<0.001
	Above 10,000 AED	264	201 (76.1%)
Ethnicity	Emirati	352	252 (71.6%)	1.267 (0.945–1.698)	0.121
	Non-Emirati	538	358 (66.5%)
Comorbidities	With comorbidities	280	206 (73.6%)	1.419 (1.037–1.943)	0.030
	No comorbidities	610	404 (66.2%)
Previous COVID-19 infection	Yes	171	129 (75.4%)	1.520 (1.038–2.225)	0.035
	No	719	481 (66.9%)