“…The majority of studies were cross-sectional in design (n=9), but two case-control studies, an observational prospective cohort study and a retrospective cohort study were also reviewed. The studies sampled male (n=7), female (n=4) and mixed-sex (n=2) populations, examining mood (11 studies) [14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24], anxiety (10 studies) [14, 15, 16, 17, 18, 19, 21, 22, 23, 25], distress/burnout (6 studies) [14, 15, 16, 17, 18, 23], disordered eating (5 studies) [14, 15, 16, 17, 23], sleep disturbance (6 studies) [15, 16, 17, 18, 23, 26], alcohol use (6 studies) [14, 15, 17, 18, 23, 24], substance misuse (1 study) [23] and gambling (1 study) [23]. Full details of the studies are reported in Table 1…”