Table 1.

Characteristics and reporting rate of AEFI reports following DPT-IPV/Hib from 2015 to 2020

Variable	Level	Administered doses	AEFI reports	Reporting rate*	χ2	p
		2860884	5726
Gender	Male	1430420	2858	19.98	6.22	>.05
	Female	1430464	2868	20.05
Dose number	1	730223	1066	14.60	201.62	<.01
	2	721654	1304	18.07
	3	711423	1548	21.76
	4	697584	1808	25.92
Category	Vaccine product-related reaction (minor)	2860884	5460	19.09	338.29	<.01
	Vaccine product-related reaction (severe)	2860884	202	0.71
	Vaccination error	2860884	17	0.06
	Coincidental event	2860884	42	0.15
	Anxiety reaction	2860884	5	0.02
Severity	Serious	2860884	227	0.79	280.45	<.01
	Non-serious	2860884	5499	19.22
Type of reporter	Health care provider	2860884	778	2.72	163.82	<.01
	Caregivers	2860884	4941	17.27
	Manufacturer	2860884	7	0.02
Onset from vaccination	0–1d	2860884	3597	12.57	118.5	<.01
	2–3d	2860884	1507	5.27
	4–7d	2860884	367	1.28
	8–14d	2860884	177	0.62
	≥15d	2860884	78	0.27
Administrated alone		2577129	5211	20.22

*: /10000 doses.