The goal of this mixed-methods study is to describe the association between the level of parent/adolescent discordance in the assessment of the adolescent's level of suicidal intentionality after a suicid attempt and the evolution of the suicidal crisis by assessing the evolution of the adolescent's suicidal intentionality between T0 and 3 months.

The main questions it aims to answer are:

• To show the association between the level of parent/adolescent discordance in the assessment of the adolescent's level of suicidal intent after a suicid attempt and various markers of the evolution of the suicidal crisis at 3 months.
• Explore the experience of adolescents and their parents regarding the elements they consider relevant in assessing the adolescent's suicidal intent.

Participants will be asked to complete various self- and hetero-questionnaires at T0 and T3

Mixed quantitative and qualitative descriptive observational study. Participants will be included at the various sites by the investigators attached to the three inclusion sites.

Primary outcome

Difference in adolescents' level of suicidal intent between T0 and 3 months. All measurements are with a Visual Analogue Scale (VAS) graded from 0 to 10.

Secondary outcomes Quantitative study

• Total number of new suicidal crisis-related visits to the emergency department and/or the child psychiatry emergency and mobile team at 3 months.
• Total number of suicidal recurrences at 3 months.
• Total number of full-time inpatient stays in MCO and/or psychiatry related to suicidal crisis at 3 months.
• Total length of stay in full-time inpatient care (MCO and/or psychiatry) related to suicidal crisis at 3 months.
• Proportion of the number of days of absence out of the total number of school days at 3 months.
• Proportion of number of child psychiatric consultations honored out of total number of scheduled consultations at 3 months.
• Proportion of the number of psychological consultations honored out of the total number of consultations scheduled for 3 months.
• Total score on FACES IV self-assessment scale of family functioning.
• Gender, age, urban or rural environment, family organization (union, single parent, other situations) and parents' socio-professional category.
• i) Presence of a family psychiatric history; ii) Presence of a family suicide history; iii) Presence of a family history of TS; iv) Presence of a personal history of TS; v) Presence of a personal history of psychological or psychiatric follow-up; vi) Presence of a personal history of self-harm; vii) Type of TS and viii) Type of ICD-10 diagnosis made during the child psychiatric assessment.
• Difference in adolescents' level of suicidal intentionality measured using a Visual Analog Scale at: i) T0 (measurement of level 1 week prior to TS, level at time of TS, level at time of assessment) and ii) T3 months.
• Difference in level of parent/adolescent suicidal intentionality measured at T0 and T3 months using the VAS.

Qualitative study

• Obtaining a thematic grid describing the experience of adolescents and their parents regarding the elements they consider relevant in assessing the adolescent's suicidal intent.
• Obtained a thematic grid describing the experience of adolescents and their parents regarding their mutual understanding of the suicidal crisis experienced by the adolescent.

The study is descriptive, and qualitative for a subsample of participants.

- Hetero-questionnaire 1: Hetero-questionnaire 1 collects socio-familial and clinical data at T0. Data are collected by the investigator on the day of inclusion in the study. The main elements collected are

• Patient's gender
• Patient's age
• rural or urban environment
• Family organization
• Parents' socio-professional category
• Family history of suicide
• Presence of a family history of suicidal attempt
• Presence of a personal history of suicidal attempt
• Personal history of psychological or psychiatric treatment
• Personal history of self-mutilation
• Type of suicidal attempt
• ICD-10 diagnosis made during child psychiatric assessment
• Hetero-questionnaire 2:

Hetero-questionnaire 2 is used to collect declarative data on progress at T3months. Data are collected by an authorized member of the study, by videoconference. Parents will be informed of the need for the child to be alone at the time of the interview, in a quiet, dedicated room. The main data collected are

• The total number of new consultations with the emergency department and/or the mobile child psychiatry team in connection with the suicidal crisis at 3 months.
• Total number of suicidal attempts recurrences
• Total number of full-time hospital stays related to the suicidal crisis.
• Total length of stay in full-time hospitalization related to suicidal crisis.
• Number of days of absence as a proportion of school days
• The proportion of the number of child psychiatric consultations honored out of the total number of scheduled consultations
• The proportion of the number of psychological consultations honored out of the number of scheduled consultations
• Auto-questionnaire FACES IV
• Semi-structured interviews Semi-structured interviews are specifically designed to explore the various themes announced. An interview guide is drawn up by the research group, made up of specialists in adolescent psychiatry and qualitative methods. The guide is not fixed, contains "starter" questions and can be modulated as the research progresses. The researcher has in mind a list of themes that must necessarily be addressed, but the discussion remains very open, in order to enter the subject's internal world. The subject acts as an expert, and may bring up one or more themes that the researcher hadn't thought of, depending on his or her concerns and interests.

Two interviews are conducted, one with the adolescent, the other with his or her parents. The interviews with the patients and their parents explore the parents' and the adolescent's experience of the suicidal crisis, family relationships and how they evolved during the crisis.

Inclusion Criteria:

• Adolescents:
• aged 11 to 17
• admitted to a pediatric or adult emergency department following a suicide attempt
• proficient in spoken French
• not opposed to participation in the research
• accompanied by at least one parent who is not opposed to the adolescent's participation in the research.
• Parents:
• 18 years of age or older
• parent or guardian of an adolescent admitted to a pediatric or adult emergency department following a suicide attempt
• fluent in spoken French
• not opposed to participation in the research

Exclusion Criteria:

• present a decompensated somatic or psychiatric pathology or a vigilance disorder
• refusal to participate in the research

Adolescents: aged 11 to 17, admitted to a pediatric or adult emergency department following a suicide attempt.

Parents: 18 years of age or older, parent or guardian of an adolescent admitted to a pediatric or adult emergency department following a suicide attempt.