Table 6. Factors associated with incidence rate of adverse events: Multiple logistic regression analysis.

	Odds ratio	[95% CI]	p-value‡
Age (continuous)	1.02	[0.99, 1.04]	0.1408
Presence of allergy (1 = yes, 0 = no)	2.00	[1.10, 3.65]	0.0234
Preexisting medical condition (1 = yes, 0 = no)	1.41	[0.95, 2.10]	0.0874
Concurrent medical condition (1 = yes, 0 = no)	1.76	[1.27, 2.44]	0.0007
Preexisting/concomitant medication (1 = yes, 0 = no)	3.01	[1.85, 4.89]	<0.0001
Prior/concomitant therapy (1 = yes, 0 = no)	2.34	[1.49, 3.67]	0.0002
Aged ≥65 years (1 = yes, 0 = no)	1.02	[0.65, 1.62]	0.9225
Second injection (1 = yes, 0 = no)	1.86	[1.03, 3.37]	0.0398

^‡ Calculated using multiple logistic regression analysis