Table 2.

Comparison of the incidence of adverse reactions between the two groups.

	Traditional group	Improved group	Total	χ2	P	P (adjust)
Frown	292	190	482	61.07	0.00
Head evasion	141	66	207	45.86	0.00
Hand block	30	6	36	20.02	0.00
Tears	19	3	22	14.18	0.00	0.00
Cough	46	34	80	4.027	0.045
Nausea	347	209	556	99.85	0.00
Vomit	4	0	4	4.585	0.03	0.101