Comparing the Self-Reported Health, Happiness, and Marital Happiness of a Multinational Sample of Consensually Non-Monogamous Adults with Those of the U.S. General Population: Additional Comparisons by Gender, Number of Sexual Partners, Frequency of Sex, and Marital Status.

The primary objective of this cross-sectional study was to examine the associations of self-reported health, happiness, marital happiness, frequency of sexual activity, and number of partners from a multinational survey of individuals who are consensually non-monogamous (CNM) or open to being CNM, completed in 2012 with 4062 respondents. We compared data from this survey with the 2010-2014 US General Social Surveys (GSS). This study explored these variables and their predictors by gender (including 612 non-binary-gendered CNM individuals), marital status, number of partners, sexual frequency, age, education, and income and were broken down by behavioral sexual orientation, marital status, and other relevant categories. Respondents in our CNM sample generally reported being as healthy (sometimes healthier; e.g., all respondents M-W Z = 7.66, p < .001, η2 = 0.007), happy (frequently happier; e.g., multiple-partnered Z = 15.43, p < .001, η2 = 0.069), happy in their marriages (in some cases happier; e.g., multiple-partnered females Z = 2.61, p = .009, η2 = 0.067), and reported having more frequent sexual activity (e.g., all Z = 29.54, p < .001, η2 = 0.094) with more partners (e.g., all Z = 60.75, p < .001, η2 = 0.393) compared to corresponding individuals within the GSS. This study contributes to knowledge about commonalities and differences between the general population and those who are CNM regarding health, happiness, and happiness in marriage, including differences in optimal number of sexual partners and sexual frequency.