Examining the relationship between group member gender, gender composition, and outcomes of weight management therapy groups

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 o…