Presently there is a lack of evidence regarding the impact of gender composition of mixed-gender weight management therapy groups on members’ posttreatment outcomes. As such, the current study tested the association between the gender composition of mixed-gender narrative therapy groups for weight management and members’ posttreatment outcomes. Specifically, we examined the variability in group members’ adjusted posttreatment psychological (Outcome Questionnaire-45 [OQ-45]) and obesity-related (Obesity Related Well-Being [ORWELL 97]) symptoms as a function of the quadratic proportion of female members in a group, and the interaction between group member gender and the quadratic proportion of female group members. Pre- and posttreatment OQ-45 and ORWELL 97 data was collected from 32 men and 67 women participating in 15 short-term weight-management therapy groups. Results indicated that the quadratic proportion of female group members was significantly related to adjusted posttreatment OQ-45 scores, such that group members reported fewer psychological symptoms at posttreatment in more proportionally balanced groups of men and women. This relationship was not significant for adjusted posttreatment ORWELL 97 scores. Additionally, in an exploratory analysis we found a significant interaction between group member gender, the proportion of female group members, and group members’ adjusted posttreatment OQ-45 scores, indicating that the relationship between gender composition and adjusted posttreatment OQ-45 scores was stronger for men than women. These preliminary findings suggest that the gender composition of weight management groups is an important factor in group members’ posttreatment psychological outcomes.

中文翻译：

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检查组成员性别、性别构成和体重管理治疗组结果之间的关系。

目前缺乏关于混合性别体重管理治疗组的性别构成对成员治疗后结果的影响的证据。因此，目前的研究测试了混合性别叙事治疗组的体重管理性别构成与成员治疗后结果之间的关联。具体来说，我们检查了小组成员的调整后心理（结果问卷 - 45 [OQ-45]）和肥胖相关（肥胖相关的幸福感 [ORWELL 97]）症状的变异性作为女性成员的二次方比例的函数在一个群体中，以及群体成员性别与女性群体成员的二次方比例之间的交互作用。治疗前和治疗后的 OQ-45 和 ORWELL 97 数据来自参与 15 个短期体重管理治疗组的 32 名男性和 67 名女性。结果表明，女性组成员的二次方比例与调整后的治疗后 OQ-45 评分显着相关，因此在比例更均衡的男性和女性组中，组成员在治疗后报告的心理症状较少。这种关系对于调整后的治疗后 ORWELL 97 分数并不显着。此外，在探索性分析中，我们发现组成员性别、女性组成员比例和组成员调整后的治疗后 OQ-45 分数之间存在显着的交互作用，表明性别构成与调整后的治疗后 OQ-45 分数之间的关系更强男性多于女性。