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Male Depression Subtypes and Suicidality: Latent Profile Analysis of Internalizing and Externalizing Symptoms in a Representative Canadian Sample

Rice, Simon, M., MPsych(Clin), PhD*; Oliffe, John, L., PhD; Kealy, David, PhD; Ogrodniczuk, John, S., PhD

The Journal of Nervous and Mental Disease: March 2018 - Volume 206 - Issue 3 - p 169–172
doi: 10.1097/NMD.0000000000000739
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Assessment of men's externalizing symptoms has been theorized to assist in the identification of those at risk of suicide. A nationally representative sample of Canadian men (N = 1000; mean, 49.63 years) provided data on internalizing and externalizing symptoms, and history of recent suicide planning and attempt (previous 4 weeks). Latent profile analysis indicted three classification subtypes. Robust effects were observed regarding history of recent suicide planning and attempt. Men with a marked externalizing profile (12.7% of sample), which included substance use, anger, and risk taking, were significantly more likely to have had a recent suicide plan (risk ratio, 14.47; p < 0.001) or to have attempted suicide within the previous 4 weeks (risk ratio, 21.32; p < 0.001) relative to asymptomatic men (67.7% of sample). Because recent suicide attempt was a rare event in the present sample (n = 13), findings need to be replicated in higher-risk populations. Results support primary care screening for both men's internalizing and externalizing depression symptoms.

*Orygen, The National Centre of Excellence in Youth Mental Health, Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia; and †School of Nursing, and ‡Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada.

Send reprint requests to Simon M. Rice, MPsych(Clin), PhD, Orygen, The National Centre of Excellence in Youth Mental Health, Centre for Youth Mental Health, The University of Melbourne, Locked Bag 10, Parkville, Melbourne, Victoria 3052, Australia. E-mail: simon.rice@orygen.org.au.

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