IntroductionIn the UK, suicide is the leading cause of death for people aged 20–35 years and for men aged35–49 years [1]. Men remain three times more likely than women to take their own lives [2]but female suicide rates are rising, currently at their highest in a decade [3].-Alcohol use canincrease in response to deterioration in psychological wellbeing [4], and misuse is a predisposing factor for suicide [5] with a lifetime prevalence of suicide of 7% in people with alcoholdependence in comparison with 0.7% in the general population [6]. Consumption of alcoholimmediately prior to suicide is common [7,8], with an estimated 37% of deaths from suicidehaving positive blood alcohol concentrations on toxicology screening indicating acute alcoholconsumption before death [9]. Given this relationship between alcohol consumption and suicide, it is possible that an alcohol-related emergency hospital admission could be a usefulmarker for a higher risk of suicide and a key moment for intervention to prevent future suicidal behaviour. We aimed to investigate the association between suicide and the full spectrumof alcohol-related acute hospital admissions. We were able to achieve this aim by quantifyingthe risk of suicide following all alcohol-related acute hospital admissions in a total populationcohort of 2.8 million people in Wales, UK.