First of all, there is a HUGE caveat to the end of that article. They looked at physicians who graduated medical school between 1948 and 1964, and marriage data through the 80s. Something tells me the social situation surrounding dating and marriage may have changed since then. This isn't to say that the study doesn't have some telling insights, but many of the statistics may have changed drastically since then. Particularly the statistics about women, since the sample size for female physicians was likely quite small, considering the time period. Therefore the data on female physician divorce rates could be substantially skewed for a number of reasons. For one, I imagine that the few women driven enough to pursue a career in medicine back then, amid a society that espoused much more rigid gender roles, and likely discouragement from family, friends, and colleagues, were probably much more career-oriented than most people, even most medical students. Thus they may have been more likely to forego romantic relationships, or put them second to their career if they did get married. Another huge factor was probably that men were not as accustomed to seeing females as peers back then, and this may have led to males (particularly those without similar educational achievement) to feel insecure and dissatisfied in their marriages with physician women. When you grew up with a working father and housewife mother, as was more the norm in the early to mid twentieth century, you're less likely to be accepting of a relationship where your wife takes over what you see as a masculine role in the relationship.
Today, many of these social factors are vastly different. While there is still disparity between male and female educational and career attainment at the highest levels, and the primary breadwinner of the household is still more likely to be male, a huge amount of progress towards equality has been made. There are roughly equal numbers of male and female medical students across the country, and fewer barriers (both social and institutional) for women to attend medical school and become successful as physicians. Thus, it may now be more possible for women to have a stable marriage and excel at their jobs, whereas before it may have been extraordinarily difficult. Additionally, dual-earner households are much more common today than when this study was conducted. The man working, female staying at home dynamic is far from ubiquitous now, and many if not most men have grown up in households where both parents worked. And while having the female be the one in the relationship with the higher educational attainment/higher salary is still uncommon, it's not unheard of, and probably wouldn't shake the foundation of a marriage the way it would have in the fifties and sixties.
Basically, I think and hope that the statistics, particularly those about gender, have changed since the mid-twentieth century. Primarily because it represents progress, but also because I am a woman in a long term relationship with a man who has a lower degree of education than I will, and who I will eventually out-earn, and I don't want our relationship to be statistically less likely to succeed just because of my chosen profession.
