Table 2.

Incidence of adverse reactions within 28 d after the last vaccination.

	Zagreb group		Essen group
	N	%	N	%	χ2	P
N	4972	100.0	5587	100.0
Any	1469	29.5(28.3∼30.8)	1351	24.2(23.1∼25.3)	38.675	<0.0001
Grade 1	1217	24.5(23.3∼25.7)	1237	22.1(21.1∼23.2)
Grade 2	191	3.8(3.3∼4.4)	93	1.7(1.4∼2.0)
Grade 3	61	1.2(0.9∼1.6)	21	0.4(0.2∼0.6)