“…However, extant data indicate that these syndromes are highly associated and comorbid (Brown, Campbell, Lehman, Grisham, & Mancill, ; Gorman, ; Kessler et al ., ; Pollack, ), possessing similar genotypic heritabilities (Demirkan et al ., ; Kendler, Prescott, Myers, & Neale, ; Wray et al ., ), symptom structures (Watson et al ., ,b), and psychological intervention responsiveness (Borkovec, Abel, & Newman, ; Brown, Anthony, & Barlow, ). Adult psychiatric inpatients with serious mental illness (SMI: Kessler et al ., ) comprise a clinical population characterized by elevated depression and anxiety (Bauer et al ., ; Cosoff & Hafner, ; Frame & Morrison, ; Nakaya, Ohmori, Komahashi, & Suwa, ; Wu et al ., ), high depression–anxiety comorbidity (Clayton, ; Melartin et al ., ; Mulsant, Reynolds, Shear, Sweet, & Miller, ), and heightened risk for suicide and self‐harm (Mann, Waternaux, Haas, & Malone, ; Nijman et al ., ; Powell, Geddes, Hawton, Deeks, & Goldacre, ). Therefore, understanding the structure of depression–anxiety comorbidity symptomology and its associations with suicide/self‐harm behaviours may have important clinical implications for this population.…”