Among baseline partnered men (which is where partnership dissolution is
well-defined), I find a 6.8pp increase in men leaving their baseline partners
(s.e. 2.9), which rises to 12.1pp after 1.5+ years (s.e. 6.1). Unlike women,
partnered men leave existing relationships with weight loss.
I don't have a prior for this topic so yes, it is new information. The perhaps surprising part is the difference between men and women. The paper found that partnered men who take GLP-1 are more likely to exit partnership than women in a similar data context. I think a defendable no-priors null hypothesis would be that there is little to no difference. Here the data shows a difference.
https://www.nber.org/system/files/working_papers/w35387/w353...
An tangential part of the paper is partnered men: