Nursing interventions based on Snyder’s hope theory for depression following percutaneous coronary interventions: A clinical study

Table 1 Depression status

Group	SDS		HAMD		BDI
	Before	After	Before	After	Before	After
Control group (n = 75)	63.80 ± 5.44	52.16 ± 2.78a	21.27 ± 2.32	10.68 ± 1.24a	11.16 ± 1.42	5.78 ± 0.96a
Observation group (n = 75)	64.12 ± 5.56	47.32 ± 2.24a	21.18 ± 2.16	6.54 ± 1.18a	11.18 ± 1.48	4.12 ± 0.72a
t	0.356	11.741	0.246	20.946	0.084	11.980
P value	0.722	< 0.001	0.806	< 0.001	0.933	< 0.001

^aP < 0.05 indicates statistically significant differences when compared with the same group before care.

Scores are expressed as mean ± SD. SDS: Self-Rating Depression Scale; HAMD: Hamilton Depression Scale; BDI: Beck Depression Inventory.