Incidence and influencing factors of post-traumatic stress symptoms in patients after surgery for acute intestinal obstruction

Figure 1 Patient flow diagram. Flow diagram of patient selection, showing the number of patients who underwent surgery for acute intestinal obstruction between January 2021 and July 2025, those excluded according to the exclusion criteria (including patients who died before the 3-month assessment or were lost to follow-up), and the 311 patients with complete data included in the final analysis. PCL-C: Post-Traumatic Stress Disorder Checklist-Civilian Version; SAS: Self-rating Anxiety Scale; SDS: Self-rating Depression Scale; SSRS: Social Support Rating Scale; WHOQOL-BREF: World Health Organization Quality of Life Brief Version.