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Table 2 Intervention and outcome indicators for the quantitative studies

From: Behavioral Activation as an ‘active ingredient’ of interventions addressing depression and anxiety among young people: a systematic review and evidence synthesis

Indicators

Definition

Intervention type

Comprised of indicated prevention and treatment interventions

 

Indicated prevention were those that recruited participants based on an elevated score on a symptom measure

 

Treatment intervention were those that recruited participants based on meeting the clinical criteria on diagnostic measures or clinical threshold on symptom measures

Format and modality

Whether the intervention was delivered in (1) group or individual format, (2) face-to-face or digitally, (3) involved parents or not

Dosage of session

The number of sessions intended to be held for the index intervention

Frequency of sessions

Frequency with which sessions were held: daily, weekly, biweekly, semiweekly

Duration of intervention

The minimum and maximum length of time from pre- to post- intervention

Provider

Highest education qualification for the providers in the index group (doctoral or non-doctoral)

Trainability

Extent to which others can be trained in an intervention; rated as high if the manual was available and treatment was delivered by non-doctoral-level practitioners; as moderate if the manual was available or treatment was delivered by non-doctoral-level practitioners; and as low if no manual was available and treatment delivered by doctoral-level practitioners only

Outcome status

Superior was applied when an intervention performed better than one or more other study groups (a psychosocial intervention, medication, combined psychosocial and medication, placebo, waitlist, no treatment, or other control groups) in a randomized trial on the primary outcome measure in the target symptom domain

 

Valid equivalent was applied when an intervention had a qualifying tie with one or more evidence-based protocol in a randomized trial on the primary outcome measure in the target symptom domain

 

Non-superior was applied when an intervention (i) performed worse than comparison groups, or (ii) performed equally against a non-evidence-based comparison group in a randomized trial on the primary outcome measure in the target symptom domain