Intenzivní krizová intervence (ICI)

Patient participant was transferred to either YCSU or APIU according to randomization

ICI is a brief (Average Length of Stay [ALOS]: M±SD=4.5±1.4 days), intensive family-centered, skills-based alternative to traditional inpatient psychiatric care. Adolescents participate in 2-3 individual sessions and 1-2 family sessions daily. Based on the cognitive-behavioral model of suicidality, ICI emphasizes that learned, maladaptive cognitive, behavioral, and affective responses to stressors contributing to suicidal behavior can be changed. Master's-level clinicians facilitate this process by engaging adolescents and their families in developing more effective coping skills when faced with potential triggers to suicidal crises.

• ICI

APIU provides comprehensive assessment and treatment services to children and adolescents with significant psychiatric difficulties and to their families using a multidisciplinary approach. Symptoms and behaviors that led to admission are targeted through a milieu-based model of care and therapeutic group programming. The multidisciplinary treatment team includes a child and adolescent psychiatrist, often in collaboration with an advanced practice provider, psychologist, psychiatric nursing staff including trained mental health specialists, behavioral healthcare clinicians, care managers, rehabilitative care staff, teachers, and parent partners. Average length of stay is 9-11 days. An individualized treatment plan is developed by the entire treatment team, including the patient and caregivers, and includes initial planning for discharge with the primary treatment goal being stabilization of acute psychiatric symptoms. Programming is based on a trauma-informed biopsychosocial approach.

• APIU

Patient participant transferred to a non-randomized unit, either YCSU or APIU, due to clinical or hospital system factors.

ICI is a brief (Average Length of Stay [ALOS]: M±SD=4.5±1.4 days), intensive family-centered, skills-based alternative to traditional inpatient psychiatric care. Adolescents participate in 2-3 individual sessions and 1-2 family sessions daily. Based on the cognitive-behavioral model of suicidality, ICI emphasizes that learned, maladaptive cognitive, behavioral, and affective responses to stressors contributing to suicidal behavior can be changed. Master's-level clinicians facilitate this process by engaging adolescents and their families in developing more effective coping skills when faced with potential triggers to suicidal crises.

• ICI

APIU provides comprehensive assessment and treatment services to children and adolescents with significant psychiatric difficulties and to their families using a multidisciplinary approach. Symptoms and behaviors that led to admission are targeted through a milieu-based model of care and therapeutic group programming. The multidisciplinary treatment team includes a child and adolescent psychiatrist, often in collaboration with an advanced practice provider, psychologist, psychiatric nursing staff including trained mental health specialists, behavioral healthcare clinicians, care managers, rehabilitative care staff, teachers, and parent partners. Average length of stay is 9-11 days. An individualized treatment plan is developed by the entire treatment team, including the patient and caregivers, and includes initial planning for discharge with the primary treatment goal being stabilization of acute psychiatric symptoms. Programming is based on a trauma-informed biopsychosocial approach.

• APIU

Patient participant was discharged without receiving either intervention due to clinical factors

The Client Satisfaction Questionnaire (CSQ-8) is an 8-item, easily scored and administered measurement that is designed to measure client satisfaction with services. The CSQ-8 uses a 4-point Likert scale. Scores are summed across items once. Items 2, 4, 5, and 8 are reverse scored. Total scores range from 8 to 32, with the higher number indicating greater satisfaction. The items for the CSQ-8 were selected on the basis of ratings by mental health professionals of items that could be related to client satisfaction and by subsequent factor analysis. The CSQ-8 is unidimensional, yielding a homogeneous estimate of general satisfaction with services. The CSQ-8 has been extensively studied, and while it is not necessarily a measure of a client's perceptions of gain from treatment or outcome, it does elicit the client's perspective on the value of services received.

The Client Satisfaction Questionnaire (CSQ-8) is an 8-item, easily scored and administered measurement that is designed to measure client satisfaction with services. The CSQ-8 uses a 4-point Likert scale. Scores are summed across items once. Items 2, 4, 5, and 8 are reverse scored. Total scores range from 8 to 32, with the higher number indicating greater satisfaction. The items for the CSQ-8 were selected on the basis of ratings by mental health professionals of items that could be related to client satisfaction and by subsequent factor analysis. The CSQ-8 is unidimensional, yielding a homogeneous estimate of general satisfaction with services. The CSQ-8 has been extensively studied, and while it is not necessarily a measure of a client's perceptions of gain from treatment or outcome, it does elicit the client's perspective on the value of services received.

The SCORE-15 is a self-report measure of family functioning and has been proved to be a reliable and valid index of therapeutic change. The SCORE-15 has 15 Likert scale items (5-point scale; 1=Describes us very well; 5=Describes us not at all), and six separate indicators, three of them qualitative.

The C-SSRS is a validated, semi-structured interview that assesses both suicidal behavior and suicidal ideation (yes/no, frequency), with flexible time points and multiple informants depending on administrator purpose and need.

The SIS is a questionnaire that assesses behavior and circumstances surrounding the suicide attempt, including plans, preparation, communicative elements, and concept of lethality of the chosen method.

The SACA is a questionnaire completed with parents that asks questions related to any treatment or help the child participant has received for emotional, behavioral, or drug or alcohol problems at baseline. The SACA is then updated at 30 day and 3 month follow-ups to assess for any change in mental health service utilization since last visit.

The Beck Hopelessness Scale (BHS) examines an individual's thoughts and beliefs about the future. The 20 true-false items measure three major aspects of hopelessness: feelings about the future, loss of motivation, and expectations. Scores on the BHS range from 0 to 20, with higher total scores indicating greater hopelessness. The hopelessness construct is highly correlated with measures of depression, suicidal intent, and ideation

The DSM-5 Level 1 Cross-Cutting Symptom Measure assesses mental health domains that are important across psychiatric diagnoses. This child-rated version of the measure consists of 25 questions that assess 12 psychiatric domains, including depression, anger, irritability, mania, anxiety, somatic symptoms, inattention, suicidal ideation/attempt, psychosis, sleep disturbance, repetitive thoughts and behaviors, and substance use. Each item asks the child, age 11-17, or parent/caregiver to rate how much (or how often) the child has been bothered by the specific symptom during the past 2 weeks. The measure was found to be clinically useful and had good test-retest reliability. Nineteen of the items are rated on a 5-point scale (0=none or not at all; 1=slight or rare, less than a day or two; 2=mild or several days; 3=moderate or more than half the days; and 4=severe or nearly every day). The suicidal ideation, suicide attempt, and substance abuse items are each rated on a "Yes or No" scale.

The Revised Children's Anxiety and Depression Scale-25 (RCADS-25) is a 25-item scale that measures levels of anxiety and low mood. The scale has two subscales (Total Anxiety and Total Depression) and an overall score. Both the anxiety and depression subscales have strong relation to anxiety and depression diagnostic groups. All items assess the frequency of symptoms and are rated on a 4-point Likert scale (1=Never; 4=Always). The child self-report scale can be used by children and adolescents between the ages of 8 to 18.

The Revised Children's Anxiety and Depression Scale-25 (RCADS-25) is a 25-item scale that measures levels of anxiety and low mood. The scale has two subscales (Total Anxiety and Total Depression) and an overall score. Both the anxiety and depression subscales have strong relation to anxiety and depression diagnostic groups. All items assess the frequency of symptoms and are rated on a 4-point Likert scale (1=Never; 4=Always). A parent (or caregiver) version is available to rate a child or adolescent's level of anxiety and depressive symptoms based on personal observations.

The Working Alliance Inventory-Short Revised (WAI-SR) is a 12-item measure for the assessment of the therapeutic alliance. The WAI-SR captures three key alliance aspects: (a) agreement on the tasks of therapy, (b) agreement on the goals of therapy and (c) development of an affective bond. The WAI-SR uses a 5-point Likert Scale (1=Seldom; 5=Always).

The Therapist Behavior Rating scale is an adherence process coding instrument designed to identify core therapeutic techniques and behaviors in facilitating multidimensional family therapy. This study uses just the 4-item Competence subscale of the measure to rate the therapy adherence. The instrument uses a 7-point Likert scale (1=Not at all; 7=Extensively).

The Cognitive Therapy Rating Scale (CTRS) is an observer-rated measure of cognitive behavioral therapy treatment fidelity. The instrument uses a 7-point Likert scale (0=Poor; 6=Excellent) for 11 therapy skill-specific items, with 7 additional items of varying scales and 2 text fill-in items to rate overall treatment.

The Motivational Interviewing Treatment Integrity (MITI) coding instrument is an observer-rated measure of motivational interviewing treatment fidelity. The MITI includes 4 global score items using a 5-point rating scale and 10 behavior count items. Global scores range from a minimum of "1" and a maximum of "5." Higher scores on the global scores and higher behavior counts indicate greater fidelity to the motivational interviewing treatment.

The Acceptability of Intervention Measure (AIM) is a widely used 4-item measure that can be administered to a wide range of stakeholders to determine the extent to which they believe an intervention is acceptable. The measure uses a 5-point Likert scale (1=Completely disagree; 5=Completely agree).

The Intervention Appropriateness Measure (IAM) is a widely used 4-item measure that can be administered to a wide range of stakeholders to determine the extent to which they believe an intervention is appropriate. The measure uses a 5-point Likert scale (1=Completely disagree; 5=Completely agree).

The Feasibility of Intervention Measure (FIM) is a widely used 4-item measure that can be administered to a wide range of stakeholders to determine the extent to which they believe an intervention is feasible. The measure uses a 5-point Likert scale (1=Completely disagree; 5=Completely agree).