A Modified Menstrual Attitudes Scale: Heteronormative Attitudes, Sexism, and Attitudes Toward Menstruation in Male and Female Adults.

Social shame and stigma surround menstruation, which may compromise women's health and rights in various contexts. Men's attitudes are particularly important because men often hold positions of power that influence women's experience. This study examined factors associated with menstrual attitudes, including heteronormative attitudes, sexism, and family influences. A cross-sectional Qualtrics panel survey (n = 802; aged 18-44; 50.8% female) was performed. We tested a revised menstrual attitudes scale based on items drawn from previously validated measures. Data were analyzed using a structural equation modeling framework. Factor analysis identified and confirmed a 5-factor model for menstrual attitudes. Men endorsed more negative attitudes toward menstruation than women; however, this difference was largely explained by factors other than gender in the structural equation model. After controlling for family and demographic characteristics, attitudes toward openness and secrecy surrounding menstruation were most strongly associated with gender role expectations and hostile sexism. Benevolent sexism was associated with finding menstruation debilitating, denying menstrual symptoms, and endorsing avoidance of activities during menstruation. Heteronormative and sexist attitudes were associated with more negative menstrual attitudes, while increased menstrual knowledge was associated with more positive menstrual attitudes. The difference in menstrual attitudes between males and females was explained largely by heteronormative attitudes and sexism. This suggests that attitudes toward menstruation are closely linked to social ideals about men and women.