Kealy et al. (2016) found that 21% of psychiatric residents were suffering symptoms of burnout. A number of problems call that finding into question. First, the writers used a one-item measure to assess burnout. Second, mounting evidence suggests that burnout is a depressive syndrome. Third, unresolvable job stress is related to depression. Given burnout's overlap with depression and the diagnostic blur around burnout, research on the impact of job stress should connect with depression, which is nosologically well characterized and diagnosable using clinically validated instruments.
Schonfeld, I.S., Laurent, E., Vandel, P., & Bianchi, R. (2016). Burnout and depression in psychiatric residents. Canadian Journal of Psychiatry, 61, 737-738. doi:10.1177/0706743716664333