Postoperative depression and anxiety in patients undergoing intestinal tumor surgery: Incidence, predictors, and impact on quality of life

Table 2 Psychological state assessment

Time point	HAMD (score)	χ2/t	P value	SAS (score)	χ2/t	P value
Day 3	10.80 ± 3.20	-	-	46.72 ± 5.80	-	-
Day 7	9.20 ± 3.10	3.271	0.001	44.38 ± 5.40	2.794	0.006
Day 30	7.20 ± 2.60	5.812	< 0.001	41.83 ± 4.90	4.831	< 0.001

P < 0.05 indicated significant difference. HAMD: Hamilton Depression Scale; SAS: Self-Rating Anxiety Scale.