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

Table 3 Comparison of Social Support Rating Scale dimension scores between post-traumatic stress disorder group and non- post-traumatic stress disorder group (mean ± SD, points)

Dimension	Time point	PTSD group (n = 56)	Non-PTSD group (n = 160)	t value	P value
Objective support1	Preoperative	7.8 ± 1.9	8.9 ± 2.0	-3.565	< 0.001
	3 months postoperative	6.9 ± 2.1	9.2 ± 1.9	-7.323	< 0.001
Subjective support2	Preoperative	13.5 ± 2.6	16.2 ± 2.8	-6.304	< 0.001
	3 months postoperative	11.8 ± 2.8	17.3 ± 2.7	-12.739	< 0.001
Utilization of social support3	Preoperative	11.1 ± 2.1	13.5 ± 2.2	-7.094	< 0.001
	3 months postoperative	10.0 ± 2.3	13.6 ± 2.1	-10.489	< 0.001

¹Objective support score range 3-11 points.

²Subjective support score range 4-20 points.

³Utilization of social support score range 3-12 points.

PTSD: Post-traumatic stress disorder.