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Vulnerability and resiliency to suicidal behaviours in young people
D M Fergusson1, A L Beautrais, L J Horwood
1Christchurch Health and Development Study and Canterbury Suicide Project, Christchurch School of Medicine, Christchurch, New Zealand.
Background:
We aimed to examine factors that influence vulnerability/resiliency of depressed young people to suicidal ideation and suicide attempt.
Method:
Data were gathered during a 21-year longitudinal study of a birth cohort of 1,265 New Zealand young people. Measures included: suicide attempt; suicidal ideation; major depression; childhood, family, individual and peer factors.
Results:
Young people who developed major depression had increased rates of suicidal ideation (OR = 54: 95% CI 4.5-6.6) and suicide attempt (OR = 12.1; 95% CI 7.9-18.5). However, the majority of depressed young people did not develop suicidal ideation or make suicide attempts, suggesting that additional factors influence vulnerability or resiliency to suicidal responses. Factors influencing resiliency/vulnerability to suicidal responses included: family history of suicide; childhood sexual abuse; neuroticism; novelty seeking; self-esteem; peer affiliations; and school achievement. These factors operated in the same way to influence vulnerability/resiliency among those depressed and those not depressed.
Conclusions:
Vulnerability/resiliency to suicidal responses among those depressed (and those not depressed) is influenced by an accumulation of factors including: family history of suicide, childhood sexual abuse, personality factors, peer affiliations and school success. Positive configurations of these factors confer increased resiliency, whereas negative configurations increase vulnerability.