Table 7. Joint display: group differences and corresponding interpretations.

Subgroup comparison	Quantitative outcome	Qualitative theme	Integrated interpretation
Males vs females	Males showed significantly greater reduction in DIFa (P=.03); females showed significantly greater reduction in EOTb (P=.046).	Males: expression-focused use (daily emotional recording). Females: reflection-focused use (reviewing coloring works).	Sex differences align with interaction styles: expression vs reflection drives divergent benefits.
Borderline vs definite alexithymia	Borderline group showed significantly greater reduction in EOT (P=.04).	Borderline: high perceived control, lightweight tool use. Definite: low perceived control, negative usability experiences.	Higher control vs lack of control explains greater improvement in the Borderline group.
Severe vs definite alexithymia	Severe group showed significantly greater reduction in EOT (P=.01).	Severe: high therapeutic reliance, goal-oriented use. Definite: low therapeutic reliance, weaker user experience.	Stronger reliance vs low engagement drives greater benefits in the Severe group.

^aDIF: Difficulty Identifying Feelings.

^bEOT: Externally Oriented Thinking.