Impact of narrative nursing-based life review nursing on dignity and depression in elderly Alzheimer’s disease patients

Table 3 Comparison of Cornell Scale for Depression in Dementia scores between the two groups, mean ± SD (scores)

	CSDD score
	Before treatment	After treatment
Control group (n = 60)	13.13 ± 1.69	6.72 ± 0.83
Combined group (n = 60)	13.03 ± 1.26	5.42 ± 0.94
t	0.367	8.031
P value	0.714	< 0.001

This table compares Cornell Scale for Depression in Dementia (CSDD) scores between the two groups before and after the intervention. Within-group comparisons (before: After treatment) were conducted using paired t-tests, and between-group comparisons at each time point were conducted using independent samples t-tests. Before treatment, there was no significant difference in CSDD scores between groups (P > 0.05). After treatment, both groups showed significant reductions in CSDD scores compared to baseline (both P < 0.001), with the combined group achieving significantly lower scores than the control group (P < 0.001). CSDD: Cornell Scale for Depression in Dementia.