Parent psychological symptoms were examined in a randomized controlled trial comparing family‐based treatment (FBT) and adolescent‐focused therapy (AFT) for anorexia nervosa, and were explored across treatments and in relation to treatment outcomes. Moderator and mediator analyses were completed with parent symptoms as predictors and weight remission and recovery status as outcome variables. Few parents had clinically significant symptoms at presentation. At the end of treatment (EOT), parents had decreased psychological symptoms in both treatment arms. Higher baseline levels of overall maternal symptomology and improvement in maternal symptomology were non‐specific predictors of adolescent weight outcome at EOT and 12‐month follow up. Mothers with few to no depressive symptoms had children with the greatest improvement in weight at EOT when assigned to family treatment. In sum, parent symptoms did not appear to negatively impact on the treatment outcome among adolescents with anorexia nervosa. Practitioner points Parent involvement is considered best practice in the treatment of adolescent anorexia nervosa (AN). There are limited data on psychological symptoms among parents of individuals with AN, and their impact on treatment outcome. Among a sample of adolescents with AN, parent psychological symptoms improved across individual and family treatment. Future studies may wish to explore the impact of maternal depression on refeeding efforts in family‐based treatment. 患神经性厌食症青少年的家长的心理症状：对其存在和在治疗结果中的角色的描述性研究 在一个比较家庭为本治疗和青少年导向疗法的随机控制实验中, 家长的心理症状得到了调查, 以研究其在不同疗法中的情况及其与治疗结果的关系。以家长症状作为预测变量, 体重恢复和康复状态作为结果变量, 进行了调节变量分析和中介变量分析。参与研究时, 几乎没有家长显示出具有临床意义的心理症状。治疗结束时, 在两种疗法下, 家长的心理症状都有所减少。较高的母亲总体症状特征基线水平和母亲症状特征的改善是治疗结束时和12个月之后跟进时青少年体重的非特定预测变量。很少到几乎没有抑郁症状的母亲的孩子, 在接受了家庭治疗过后, 于治疗结束时在体重上呈现出最大的进步。总体来说, 家长症状似乎并不会对患有神经性厌食症的青少年的治疗结果产生不利影响。 对实务工作者的启示 在治疗青少年神经性厌食症的过程中, 家长参与被认为是最佳实践。 关于神经性厌食症患者家长的心理症状及其对治疗效果影响的数据很少。 在一个患有神经性厌食症的青少年的样本中, 家长的心理症状在个体治疗和家庭治疗中都得到了改善。 今后的研究可以考察母亲抑郁症对于家庭为本治疗中的再进食努力的影响。 关键词：神经性厌食症；家长精神机能障碍；家庭为本治疗；青少年导向心理治疗；治疗结果