This study explored whether post-treatment symptom severity moderated the association between session attendance during an initial treatment episode and subsequent mental health service use. Data on attendance, symptom severity, and service use were gathered from an effectiveness trial testing a modular treatment for youth anxiety, depression, disruptive behavior, and traumatic stress. Multilevel logistic regression analyses showed a significant interaction between attendance and post-treatment symptom severity on subsequent service use, such that attendance significantly predicted subsequent service use when post-treatment symptom severity was in the normal range. Implications regarding the influence of treatment engagement on future help-seeking are discussed.
Keywords: Long-term outcomes; Mental health service use; Modular treatment; Treatment attendance; Treatment engagement.