Publication date: Feb 05, 2025
Owing to their vulnerability to public health crises, adolescents’ mental health status, and related risk factors in the post-pandemic era in China require examination. This study aimed to lay a foundation for subsequent interventions and mental disorder prevention among adolescents. An anonymous online survey was conducted January 8-18, 2023. The survey comprised two parts. The first part collected personal information. The second part included the nine-item Patient Health Questionnaire, seven-item Generalized Anxiety Disorder Scale, and Pittsburgh Sleep Quality Index. Of 50,666 adolescent participants, 46. 8% displayed depressive symptoms, 31. 5% showed anxiety symptoms, and 47. 9% experienced difficulties initiating sleep within 30 min, while 4. 9% manifested depressive, anxiety, and insomnia symptoms simultaneously. Chi-square tests revealed significant variations in the prevalence of these conditions according to age, sex, coronavirus disease-2019 (COVID-19) infection status, family infection status, and increased screen time (P