Sexual Orientation, Pubertal Timing, Inhibitory Control, and Adolescent Depressive Symptoms: A Birth Cohort Study.

Area of Science:

• Adolescent Health
• Developmental Psychology
• Mental Health Research

Background:

• Sexual orientation and mental health disparities are significant public health concerns.
• Understanding the developmental pathways linking sexual orientation to mental health is crucial.
• Pubertal timing and inhibitory control are key developmental factors in adolescence.

Purpose of the Study:

• To investigate the association between adolescent sexual orientation and depressive symptoms.
• To examine the mediating role of pubertal timing and inhibitory control in this association.
• To analyze these relationships within a large, diverse adolescent cohort.

Main Methods:

• Utilized data from the Avon Longitudinal Study of Parents and Children (ALSPAC).
• Assessed sexual orientation and depressive symptoms in adolescents.
• Objectively measured pubertal timing using age at peak height velocity.
• Evaluated inhibitory control at age 15.5 years.

Main Results:

• Sexual minority adolescents reported earlier pubertal timing and higher depressive symptoms compared to heterosexual peers.
• Earlier pubertal timing was associated with increased depressive symptoms in sexual minority youth.
• The pathway through earlier pubertal timing leading to worse inhibitory control did not explain the disparity in depressive symptoms.

Conclusions:

• Pubertal timing is a small contributor to sexual orientation disparities in depressive symptoms among adolescents.
• The findings highlight the complex interplay between pubertal development, sexual orientation, and mental health.
• Interventions addressing pubertal timing may offer a partial avenue for mitigating mental health disparities in sexual minority youth.