Sex-Based Differences in Lifestyle Behaviours, Self-Esteem, and Academic Performance: A Structural Equation Model in High-Socioeconomic-Status School-Aged Youth from Southern Spain

The findings underscore the complex interplay between lifestyle behaviours, psychosocial factors, and AP in school-aged youth. Regardless of SES, interventions should focus on reducing ST, promoting PA and MD adherence, and enhancing SE whilst considering sex-specific patterns.