Joint trajectories of loneliness, depressive symptoms, and social anxiety from middle childhood to early adolescence: associations with suicidal ideation.

This study examined the joint trajectories of loneliness, depressive symptoms, and social anxiety from middle childhood to early adolescence and their associations with suicidal ideation. A total of 643 Chinese elementary school students (55.2% male; Mage = 9.01; SD = 0.75; range = 7 to 11 years at T1) completed measures on six occasions at 6-month intervals. Parallel process latent class growth models revealed five distinct trajectories of loneliness, depressive symptoms, and social anxiety: "congruent-low" (45.1%), "moderately low with predominant loneliness and depressive symptoms" (15.7%), "moderate with predominant loneliness and depressive symptoms" (4.2%), "moderately low with predominant social anxiety" (24.9%), and "congruent-high" (10.1%). The highest suicidal ideation was observed among adolescents who persistently experienced two or three symptoms, followed by those who persistently experienced one predominant symptom, and finally, adolescents who persistently experienced low levels of all three symptoms. The findings highlight the importance of individual differences considerations in understanding the joint patterns of loneliness, depressive symptoms, and social anxiety among youth during the transition into adolescence and the need for more sophisticated intervention programs tailored to the unique characteristics of the relevant trajectories to reduce the risk of suicidal ideation.