There are a few other studies on this. Maybe I'm reading these incorrectly so would appreciate your analysis. As far as I can interpret, the pattern is legit. What is especially counter-intuitive (unless you have a negative view of the profession, as I do) is that so-called professionals in mental health have a higher divorce rate even than respondents who score high on the "anger scale". So what's that all about?
Divorce among physicians and other healthcare professionals in the United States
https://sci-hub.st/10.1056/NEJM199703133361112
Medical Specialty and the Incidence of Divorce
https://sci-hub.st/10.1056/NEJM199703133361112
Some callouts:
> Survey results from 2008 through 2013 included responses from more than 40,000 physicians; 200,000 other health professionals—dentists, pharmacists, nurses and health care executives; and more than 6 million other adults who reported currently being employed and ever being married. While 24 percent of physician respondents had ever been divorced, the probability of being divorced was 25 percent among dentists, 31 percent among health care executives and 33 percent among nurses. Only pharmacists, at 23 percent, were less likely than physicians to have been divorced. Lawyers had a 27 percent probability of being divorced, and *in all non-health-care occupations, the probability of ever being divorced was 35 percent.*
> A subsequent, larger study of 1118 medical graduates of Johns Hopkins University found cumulative rates of divorce of 29% *with rates higher among psychiatrists (50%)* and surgeons (33%) but was limited by its analysis of physicians from a single institution.
> The choice of specialty was significantly associated (P>0.001) with the risk of divorce (Fig. 1 and Table 2). The cumulative incidence of divorce was highest
for *psychiatrists (50 percent)*, followed by surgeons (33 percent) and “other” physicians (31 percent). Among internists, pediatricians, and pathologists, the incidence of divorce was similar (22 to 24 per-
cent).
> When we examined psychological variables, we found that physicians in the highest quartile for the anger scale had a higher risk of divorce than those
scoring in the lower three quartiles. *Moreover, the cumulative incidence of divorce among the physicians with the highest anger scores was higher than
that of any other subgroup, with the exception of those practicing psychiatry.*