The goal of this observational study is to learn more about people who come to emergency departments in Spain after a suicide attempt and to find ways to prevent another attempt. The main questions are whether some personal, social, biological, and clinical factors are linked to a higher risk of trying again, and whether different follow-up strategies can help lower this risk over time.
Researchers will follow a total of about 3,600 people who attempted suicide: around 1,800 who were already recruited in a previous study and about 1,800 new participants who will be added in this project, in several hospitals across Spain.
Some participants may also be invited to give blood samples, answer online questionnaires, or use smartphone-based tools to understand better changes in mood and suicidal thoughts in daily life. A subset of participants may be invited to join separate clinical trials that test different follow-up programs to prevent another suicide attempt; these trials will be registered and described in their own study records.