Table 2. Variables associated with S1-specific IgG and neutralizing Ab of ChAdOx1 nCoV-19 vaccine in multivariate analysis.

Variables			ChAdOx1 nCoV-19 1st dose (n=96)					ChAdOx1 nCoV-19 2nd dose (n=88)
			Standardized β	p-value	Standardized β	p-value	R2	Standardized β	p-value	Standardized β	p-value	R2
Log S1-specific IgG
	Age		0.006	0.96	−0.03	0.77		0.05	0.69	−0.01	0.94
	Female Sex		−0.10	0.40	−0.13	0.29		−0.02	0.91	0.01	0.92
	Occupation
		Office worker	Ref	Ref	Ref	Ref		Ref	Ref	Ref	Ref
		Doctor	0.08	0.56	0.09	0.52		0.11	0.45	0.11	0.44
		Nurse	0.29	0.02	0.35	0.007		0.09	0.50	0.09	0.50
		Paramedic	0.20	0.05	0.21	0.05		0.20	0.09	0.20	0.10
	Local reaction after each dose (sum of symptom score)		0.30	0.003	-	-	0.19	0.29	0.01	-	-	0.11
	Systemic reaction after each dose (sum of symptom score)		-	-	0.08	0.47	0.11	-	-	0.14	0.20	0.05
Log 50% neutralizing Ab
	Age		−0.02	0.84	−0.07	0.53		0.12	0.33	0.09	0.48
	Female Sex		−0.06	0.64	−0.07	0.58		0.07	0.60	0.11	0.44
	Occupation
		Office worker	Ref	Ref	Ref	Ref		Ref	Ref	Ref	Ref
		Doctor	0.21	0.12	0.22	0.11		0.07	0.64	0.07	0.63
		Nurse	0.17	0.18	0.22	0.09		0.05	0.71	0.05	0.73
		Paramedic	0.18	0.11	0.18	0.11		−0.05	0.66	−0.07	0.56
	Local reaction after each dose (sum of symptom score)		0.22	0.04	-	-	0.10	0.19	0.10	-	-	0.05
	Systemic reaction after each dose (sum of symptom score)		-	-	−0.03	0.81	0.06	-	-	−0.003	0.98	0.02

Ref, reference value.