Incidence and risk factors of post-traumatic stress disorder in patients after endoscopic submucosal dissection for early gastric cancer

Table 6 Comparison of patient characteristics between the clinical post-traumatic stress disorder group and the mild-to-moderate post-traumatic stress disorder group

Item	Category/unit	Clinical PTSD group (n = 18)	Mild-to-moderate PTSD group (n = 38)	Test statistic	P value
Gender	Male	10 (55.6)	23 (60.5)	χ2 = 0.137	0.711
	Female	8 (44.4)	15 (39.5)
Age (years)		64.8 ± 7.3	59.6 ± 8.5	t = 2.239	0.029
3-month postoperative SAS score (points)		58.3 ± 8.6	48.2 ± 7.9	t = 4.392	< 0.001
3-month postoperative SDS score (points)		64.7 ± 9.2	53.5 ± 8.4	t = 4.635	< 0.001
3-month postoperative SSRS score (points)		24.1 ± 5.2	30.8 ± 5.7	t = -4.242	< 0.001
Combined with ulcer	Yes	11 (61.1)	15 (39.5)	χ2 = 2.546	0.111
	No	7 (38.9)	23 (60.5)

Clinical post-traumatic stress disorder (PTSD) group defined as PTSD Checklist-Civilian Version total score ≥ 50, Mild-to-moderate PTSD group defined as PTSD Checklist-Civilian Version total score 38-49. SAS: Self-Rating Anxiety Scale; SDS: Self-Rating Depression Scale; SSRS: Social Support Rating Scale; PTSD: Post-traumatic stress disorder.