Table 2.

Comparison of adverse reactions at the 2nd and 3rd vaccinations.

	2nd vaccination	3rd vaccination	P value†
Fever – no. (%)	25 (48.1)	23 (45.1)	0.80
Highest fever degree – no. (%)
37.0–37.4 °C	6 (11.5)	6 (11.5)	0.50
37.5–37.9 °C	11 (21.2)	6 (11.5)
≥38.0 °C	8 (15.4)	11 (21.2)
Fatigue – no. (%)	35 (67.3)	31 (59.6)	0.39
Headache – no. (%)	11 (21.2)	21 (40.4)	0.02
Swelling of axillary lymph nodes – no. (%)	3 (5.8)	21 (40.4)	<0.01

^†The McNemar test was performed for comparisons of discordant pairs.