Background Several risk factors for suicide have been identified. We assessed the relative
risks and population attributable risks of suicide associated with various socioeconomic
factors and with previous mental illness that necessitated hospital admission. Our aim was to
assist in the choice of potential strategies for preventing suicide in the general population.
Methods We did a population-based nested case-control study based on register data. Data
were collected on a random 5% sample of the Danish population aged 16–78 years during�…

BackgroundGender is one of the most frequently replicated predictors for suicide. AimsTo
identify risk factors for suicide among males and females and to investigate whether risk
factors for suicide differ by gender. MethodA time-matched nested case–control design was
performed using Danish longitudinal register databases to obtain 811 suicide cases and 79
871 controls. Data were analysed using conditional logistic regression. ResultsA history of
hospitalised mental illness was the most marked risk factor for suicide for both genders�…