Table 4.

VAS and NRS scores ($\overline{x}\pm s$, points).

Grouping	Cases	VAS		NRS
		Before nursing	After nursing	Before nursing	After nursing
Control group	100	4.63 ± 0.89	3.76 ± 0.53a	4.88 ± 1.22	3.42 ± 0.57a
Research group	100	4.65 ± 0.81	2.44 ± 0.87b	4.91 ± 1.27	2.06 ± 0.56b
t value		0.166	12.957	0.170	17.019
P value		0.868	P ≤ 0.001	0.864	0.031

Note: the control group before and after nursing, ^aP < 0.05; the research group before and after nursing, ^bP < 0.05.