A study into the success of heterosexual and same-sex marriages in the United States has revealed that marriages between two men were more likely to stay together than any other.
Women in same-sex marriages were the most likely to break up.
Researchers from the Los Angeles based law school The Williams Institute found that of the 515 couples it followed for 12 years that:
Male-male couples are 1.5 times as likely to be successful than heterosexual couples.
Female-female couples (29.3%) were twice as likely as male-male couples (14.5%) to terminate their relationship, compared to 18.6% of male-female couples.
“Other studies on heterosexual couples have found that women have higher standards for relationship quality than men,” said study author Esther Rothblum, a professor of women’s studies at San Diego State University and visiting scholar at the Williams Institute at UCLA School of Law. “We suspect that similar dynamics may be at play with the lesbian couples in our study, leading to the higher dissolution rate. At the same time, we found that older couples were less likely to break up, and having children had no impact on the break-up rates.”
The study also found that the legalisation of same-sex marriage in the US made no difference to break-up rates between same-sex couples before or after the law change.