A high school's leave data

It takes leave-taking behavior as an important behavioral indicator of the psychological state of senior high school students. Using 379 leave records from the Class of 2023 at a high school across three consecutive semesters (Semesters 4–6), the research adopts content analysis and individual case tracking methods to examine the characteristic patterns of leave-taking behavior among senior students.</p><p dir="ltr">The findings show that leave-taking behavior exhibits significant “temporal clustering” around key dates.

The stated reasons for leave have shifted from “specific physical symptoms” (62%) to “vague malaise” (55%), reflecting a trend toward the somatization of psychological stress. Frequently absent students can be categorized into three types: cumulative somatization type, long-term semi-detached type, and intermittent collapse type. Leave-taking behavior also demonstrates a group contagion effect.</p><p dir="ltr">Based on these findings, the study constructs an early warning indicator system for psychological crises, featuring a “three-tier early warning + home-school collaboration” framework.