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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

2,206 questions in 117 reviews · Common Mental Disorders

current versions
No studies 387 · 17.5%Ungraded 111 · 5%Very low 635 · 28.8%Low 568 · 25.7%Moderate 449 · 20.4%High 56 · 2.5%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Any early psychological intervention vs waiting list/usual care
PTSD diagnosis: 7–12 months · various
Multiple session early psychological interventions for the prevention of post‐traumatic stress disorder (2019) · Cochrane
RR 0.94 [0.2, 4.49]1 study · 132 participantsVery low
Any early psychological intervention vs waiting list/usual care
Dropouts from treatment · various
Multiple session early psychological interventions for the prevention of post‐traumatic stress disorder (2019) · Cochrane
RR 1.34 [0.91, 1.95]11 studies · 1154 participantsLow
Any early psychological intervention vs waiting list/usual care
Severity of PTSD symptoms: 3–6 months · various
Multiple session early psychological interventions for the prevention of post‐traumatic stress disorder (2019) · Cochrane
no estimate extracted15 studies · 1921 participantsLow
Any early psychological intervention vs waiting list/usual care
Severity of depressive symptoms: 3–6 months · various
Multiple session early psychological interventions for the prevention of post‐traumatic stress disorder (2019) · Cochrane
no estimate extracted7 studies · 1009 participantsLow
Any early psychological intervention vs waiting list/usual care
Severity of anxiety symptoms: 3–6 months · various
Multiple session early psychological interventions for the prevention of post‐traumatic stress disorder (2019) · Cochrane
no estimate extracted6 studies · 945 participantsLow
Any early psychological intervention vs active control condition
Dropouts from treatment · various
Multiple session early psychological interventions for the prevention of post‐traumatic stress disorder (2019) · Cochrane
RR 1.61 [1.11, 2.34]2 studies · 425 participantsLow
Any early psychological intervention vs active control condition
Severity of PTSD symptoms: 3–6 months · various
Multiple session early psychological interventions for the prevention of post‐traumatic stress disorder (2019) · Cochrane
no estimate extracted4 studies · 465 participantsLow
Switching to mianserin (60 mg/d) vs continuing on current antidepressant (fluoxetine 20 mg/d)
Depressive symptoms (HAM‐D) Scale from: 0 to 54 (worse) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted1 study · 71 participantsLow
Augmentation of current antidepressant (fluoxetine 20 mg/d) with mianserin (60 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d) with placebo
Quality of life ‐ not measured · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Augmentation of current antidepressant (SSRI/SNRI) with mirtazapine (30 mg/d) vs augmentation of current antidepressant (SSRI/SNRI) therapy with placebo
Depressive symptoms (BDI‐II) Scale from: 0 to 64 (worse) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted1 study · 431 participantsHigh
Augmentation of current antidepressant (SSRI/SNRI) with mirtazapine (30 mg/d) vs augmentation of current antidepressant (SSRI/SNRI) therapy with placebo
Dropouts · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 0.5 [0.15, 1.62]1 study · 480 participantsHigh
Augmentation of current antidepressant (SSRI/SNRI) with mirtazapine (30 mg/d) vs augmentation of current antidepressant (SSRI/SNRI) therapy with placebo
Response (≥ 50% improvement in BDI‐II score) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.22 [0.97, 1.54]1 study · 431 participantsHigh
Augmentation of current antidepressant (SSRI/SNRI) with mirtazapine (30 mg/d) vs augmentation of current antidepressant (SSRI/SNRI) therapy with placebo
Remission (BDI‐II total score ≤ 9) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.21 [0.88, 1.65]1 study · 431 participantsHigh
Augmentation of current antidepressant (SSRI/SNRI) with mirtazapine (30 mg/d) vs augmentation of current antidepressant (SSRI/SNRI) therapy with placebo
Quality of life (EQ‐5D‐5L) ‐ 12 weeks · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted1 study · 447 participantsHigh
Augmentation of current antidepressant (SSRI) with busiprone (20 mg/d to 60 mg/d) vs augmentation of current antidepressant (SSRI) with placebo
Depressive symptoms (MADRS) Scale from: 0 to 60 (worse) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted1 study · 102 participantsLow
Augmentation of current antidepressant (SSRI) with busiprone (20 mg/d to 60 mg/d) vs augmentation of current antidepressant (SSRI) with placebo
Dropouts · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 0.6 [0.23, 1.53]1 study · 108 participantsLow
Augmentation of current antidepressant (SSRI) with busiprone (20 mg/d to 60 mg/d) vs augmentation of current antidepressant (SSRI) with placebo
Response to treatment ‐ not measured · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Augmentation of current antidepressant (SSRI) with busiprone (20 mg/d to 60 mg/d) vs augmentation of current antidepressant (SSRI) with placebo
Remission ‐ not measured · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Switching to mianserin (60 mg/d) vs continuing on current antidepressant (fluoxetine 20 mg/d)
Dropouts · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 2.08 [0.94, 4.59]1 study · 72 participantsLow
Augmentation of current antidepressant (SSRI) with busiprone (20 mg/d to 60 mg/d) vs augmentation of current antidepressant (SSRI) with placebo
Quality of life ‐ not measured · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Augmentation of current antidepressant (various) with cariprazine (1 mg/d to 4.5 mg/d) vs augmentation of current antidepressant (various) with placebo
Depressive symptoms (MADRS) ‐ Any dose Scale from: 0 to 60 (worse) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted1 study · 808 participantsHigh
Augmentation of current antidepressant (various) with cariprazine (1 mg/d to 4.5 mg/d) vs augmentation of current antidepressant (various) with placebo
Dropouts ‐ any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.68 [1.16, 2.41]1 study · 821 participantsModerate
Augmentation of current antidepressant (various) with cariprazine (1 mg/d to 4.5 mg/d) vs augmentation of current antidepressant (various) with placebo
Response (≥ 50% improvement in MADRS score) ‐ any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.27 [1.07, 1.52]1 study · 808 participantsModerate
Augmentation of current antidepressant (various) with cariprazine (1 mg/d to 4.5 mg/d) vs augmentation of current antidepressant (various) with placebo
Remission (MADRS total score ≤ 10) ‐ any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.07 [0.86, 1.33]1 study · 808 participantsModerate
Augmentation of current antidepressant (various) with cariprazine (1 mg/d to 4.5 mg/d) vs augmentation of current antidepressant (various) with placebo
Quality of life ‐ not measured · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with olanzapine (5 mg/d to 20 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with placebo
Depressive symptoms (HAM‐D) Scale from: 0 to 52 (worse) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted1 study · 20 participantsLow
Augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with olanzapine (5 mg/d to 20 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with placebo
Depressive symptoms (MADRS) Scale from: 0 to 60 (worse) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted1 study · 20 participantsLow
Augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with olanzapine (5 mg/d to 20 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with placebo
Dropouts · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 0.33 [0.04, 2.69]1 study · 20 participantsLow
Augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with olanzapine (5 mg/d to 20 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with placebo
Response (≥50% reduction in MADRS score) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 6 [0.87, 41.21]1 study · 20 participantsLow
Switching to mianserin (60 mg/d) vs continuing on current antidepressant (fluoxetine 20 mg/d)
Response (≥ 50% improvement in HAM‐D score) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.32 [0.76, 2.27]1 study · 71 participantsLow
Augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with olanzapine (5 mg/d to 20 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with placebo
Remission ‐ not reported · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with olanzapine (5 mg/d to 20 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d to 60 mg/d) with placebo
Quality of life ‐ not measured · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Augmentation of current antidepressant (various) with quetiapine (150 mg/d to 300 mg/d) vs augmentation of current antidepressant (various) with placebo
Depressive symptoms (MADRS or HAM‐D) ‐ Any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted3 studies · 977 participantsHigh
Augmentation of current antidepressant (various) with quetiapine (150 mg/d to 300 mg/d) vs augmentation of current antidepressant (various) with placebo
Dropouts ‐ Any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.33 [0.9, 1.95]3 studies · 997 participantsModerate
Augmentation of current antidepressant (various) with quetiapine (150 mg/d to 300 mg/d) vs augmentation of current antidepressant (various) with placebo
Response (≥ 50% reduction in MADRS or HAM‐D score) ‐ Any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.25 [1.09, 1.44]3 studies · 977 participantsModerate
Augmentation of current antidepressant (various) with quetiapine (150 mg/d to 300 mg/d) vs augmentation of current antidepressant (various) with placebo
Remission (MADRS score ≤ 8/HAM‐D score ≤ 7) ‐ Any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.53 [1.23, 1.9]3 studies · 977 participantsModerate
Augmentation of current antidepressant (various) with quetiapine (150 mg/d to 300 mg/d) vs augmentation of current antidepressant (various) with placebo
Quality of life (% max score of Q‐LES‐Q‐SF) ‐ Any dose Scale from: 0 to 100 (better) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted2 studies · 884 participantsModerate
Augmentation of current antidepressant (SSRI) with ziprasidone (40 mg/d to 160 mg/d) vs augmentation of current antidepressant (SSRI) with placebo or continue on SSRI monotherapy
Depressive symptoms (HAM‐D) ‐ Any dose Scale from: 0 to 54 (worse) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted2 studies · 199 participantsModerate
Augmentation of current antidepressant (SSRI) with ziprasidone (40 mg/d to 160 mg/d) vs augmentation of current antidepressant (SSRI) with placebo or continue on SSRI monotherapy
Dropouts ‐ Any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.6 [1.01, 2.55]2 studies · 199 participantsModerate
Augmentation of current antidepressant (SSRI) with ziprasidone (40 mg/d to 160 mg/d) vs augmentation of current antidepressant (SSRI) with placebo or continue on SSRI monotherapy
Response (≥ 50% reduction in MADRS/HAM‐D score) ‐ Any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.8 [1.07, 3.04]2 studies · 199 participantsModerate
Switching to mianserin (60 mg/d) vs continuing on current antidepressant (fluoxetine 20 mg/d)
Remission (HAM‐D total score ≤ 8) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.97 [0.88, 4.42]1 study · 71 participantsLow
Augmentation of current antidepressant (SSRI) with ziprasidone (40 mg/d to 160 mg/d) vs augmentation of current antidepressant (SSRI) with placebo or continue on SSRI monotherapy
Remission (clinician‐rated) ‐ Any dose · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
OR 1.46 [0.75, 2.86]2 studies · 199 participantsModerate
Augmentation of current antidepressant (SSRI) with ziprasidone (40 mg/d to 160 mg/d) vs augmentation of current antidepressant (SSRI) with placebo or continue on SSRI monotherapy
Quality of life ‐ not measured · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Switching to mianserin (60 mg/d) vs continuing on current antidepressant (fluoxetine 20 mg/d)
Quality of life ‐ not measured · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extractedNRNo studies
Augmentation of current antidepressant (fluoxetine 20 mg/d) with mianserin (60 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d) with placebo
Depressive symptoms (HAM‐D) Scale from: 0 to 54 (worse) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
no estimate extracted1 study · 70 participantsModerate
Augmentation of current antidepressant (fluoxetine 20 mg/d) with mianserin (60 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d) with placebo
Dropouts · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.02 [0.38, 2.72]1 study · 70 participantsLow
Augmentation of current antidepressant (fluoxetine 20 mg/d) with mianserin (60 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d) with placebo
Response (≥ 50% reduction in HAM‐D score) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 1.7 [1.03, 2.78]1 study · 70 participantsLow
Augmentation of current antidepressant (fluoxetine 20 mg/d) with mianserin (60 mg/d) vs augmentation of current antidepressant (fluoxetine 20 mg/d) with placebo
Remission (HAM‐D total score ≤ 7) · treatment‐resistant depression in adults
Pharmacological interventions for treatment‐resistant depression in adults (2019) · Cochrane
RR 2.38 [1.09, 5.16]1 study · 70 participantsLow
Benzodiazepines vs placebo
Response · adults with panic disorder
Benzodiazepines versus placebo for panic disorder in adults (2019) · Cochrane
RR 1.65 [1.39, 1.96]16 studies · 2476 participantsLow
Benzodiazepines vs placebo
Total number of dropouts · adults with panic disorder
Benzodiazepines versus placebo for panic disorder in adults (2019) · Cochrane
RR 0.5 [0.39, 0.64]21 studies · 3558 participantsLow