Gap finder

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
Benzodiazepines vs placebo
Remission · adults with panic disorder
Benzodiazepines versus placebo for panic disorder in adults (2019) · Cochrane
RR 1.61 [1.38, 1.88]15 studies · 2907 participantsLow
Benzodiazepines vs placebo
Panic symptoms ‐ endpoint score · adults with panic disorder
Benzodiazepines versus placebo for panic disorder in adults (2019) · Cochrane
no estimate extracted7 studies · 1489 participantsVery low
Benzodiazepines vs placebo
Panic symptoms ‐ mean change · adults with panic disorder
Benzodiazepines versus placebo for panic disorder in adults (2019) · Cochrane
no estimate extracted4 studies · 719 participantsVery low
Benzodiazepines vs placebo
Number of dropouts due to adverse effects · adults with panic disorder
Benzodiazepines versus placebo for panic disorder in adults (2019) · Cochrane
RR 1.58 [1.16, 2.15]14 studies · 3263 participantsLow
Summary of findings: Specialist inpatient care for weight restoration vs active outpatient or combination brief hospital/outpatient care
Weight or BMI (at end of 12 months from the start of treatment) · participants with anorexia nervosa
Inpatient versus outpatient care, partial hospitalisation and waiting list for people with eating disorders (2019) · Cochrane
no estimate extracted2 studies · 232 participantsLow
Summary of findings: Specialist inpatient care for weight restoration vs active outpatient or combination brief hospital/outpatient care
Acceptability: number of participants who completed treatment (at end of 12 months from the start of treatment) · participants with anorexia nervosa
Inpatient versus outpatient care, partial hospitalisation and waiting list for people with eating disorders (2019) · Cochrane
RR 0.75 [0.64, 0.88]3 studies · 319 participantsVery low
Stand‐alone couple or family therapy vs no treatment
Severity of PTSD symptoms · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 40 participantsLow
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Severity of PTSD symptoms · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 57 participantsLow
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Dyadic adjustment · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 57 participantsVery low
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Family functioning · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 participantsUngraded
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Family member severity of depression · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 57 participantsVery low
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Family member severity of anxiety · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 57 participantsVery low
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Severity of depression · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 57 participantsVery low
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Severity of anxiety · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 57 participantsVery low
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Treatment dropout (treatment acceptability) · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
OR 0.95 [0.29, 3.19]1 study · 57 participantsLow
Stand‐alone couple or family therapy vs other structured or non‐specific intervention
Instances of severe aggression · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extractedNRNo studies
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Severity of PTSD symptoms · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Stand‐alone couple or family therapy vs no treatment
Dyadic adjustment · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted2 studies · 100 participantsVery low
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Dyadic adjustment · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Family member severity of depression · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Family member severity of anxiety · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Severity of depression · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Severity of anxiety · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Family functioning · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Treatment dropout (treatment acceptability) · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
OR 14.13 [0.71, 279.83]1 study · 29 participantsLow
Adjunctive couple or family therapy vs structured or non‐specific individual therapy alone
Instances of severe aggression or violence · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Stand‐alone couple or family therapy vs no treatment
Family functioning · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Stand‐alone couple or family therapy vs no treatment
Family member severity of depression · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 40 participantsVery low
Stand‐alone couple or family therapy vs no treatment
Family member severity of anxiety · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 40 participantsVery low
Stand‐alone couple or family therapy vs no treatment
Primary PTSD patient severity of depression · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 40 participantsVery low
Stand‐alone couple or family therapy vs no treatment
Primary PTSD patient severity of anxiety · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extracted1 study · 40 participantsVery low
Stand‐alone couple or family therapy vs no treatment
Treatment dropout (treatment acceptability) · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
OR 0.41 [0.09, 1.95]1 study · 40 participantsLow
Stand‐alone couple or family therapy vs no treatment
Instances of severe aggression · post‐traumatic stress disorder (PTSD)
Couple and family therapies for post‐traumatic stress disorder (PTSD) (2019) · Cochrane
no estimate extractedNRNo studies
Bupropion XL vs placebo
Incidence of SAD (SIGH‐SAD score ≥ 20) · adults with a history of SAD who do not fulfil criteria for major depressive disorder
Second‐generation antidepressants for preventing seasonal affective disorder in adults (2019) · Cochrane
RR 0.56 [0.44, 0.72]3 studies · 1100 participantsModerate
Bupropion XL vs placebo
Overall rate of adverse events · adults with a history of SAD who do not fulfil criteria for major depressive disorder
Second‐generation antidepressants for preventing seasonal affective disorder in adults (2019) · Cochrane
RR 1.02 [0.97, 1.08]3 studies · 1048 participantsModerate
Bupropion XL vs placebo
Headache · adults with a history of SAD who do not fulfil criteria for major depressive disorder
Second‐generation antidepressants for preventing seasonal affective disorder in adults (2019) · Cochrane
RR 1.26 [1.02, 1.56]3 studies · 1048 participantsModerate
Bupropion XL vs placebo
Insomnia · adults with a history of SAD who do not fulfil criteria for major depressive disorder
Second‐generation antidepressants for preventing seasonal affective disorder in adults (2019) · Cochrane
RR 1.46 [1.1, 1.93]3 studies · 1048 participantsLow
Bupropion XL vs placebo
Nausea · adults with a history of SAD who do not fulfil criteria for major depressive disorder
Second‐generation antidepressants for preventing seasonal affective disorder in adults (2019) · Cochrane
RR 1.63 [1.12, 2.38]3 studies · 1048 participantsLow
Bupropion XL vs placebo
Diarrhoea · adults with a history of SAD who do not fulfil criteria for major depressive disorder
Second‐generation antidepressants for preventing seasonal affective disorder in adults (2019) · Cochrane
RR 1.04 [0.66, 1.64]3 studies · 1048 participantsLow
Bupropion XL vs placebo
Discontinuation due to adverse events · adults with a history of SAD who do not fulfil criteria for major depressive disorder
Second‐generation antidepressants for preventing seasonal affective disorder in adults (2019) · Cochrane
RR 1.68 [0.74, 3.79]3 studies · 1048 participantsLow
Bright white light therapy vs no light therapy
Incidence of SAD (SIGH‐SAD score ≥ 20) ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 0.64 [0.3, 1.38]1 study · 23 participantsVery low
Bright white light therapy vs infrared light therapy
Incidence of SAD (SIGH‐SAD score ≥ 20) ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 1.29 [0.5, 3.28]1 study · 29 participantsVery low
Bright white light therapy vs infrared light therapy
Incidence of severe SAD (SIGH‐SAD‐SR (≥ 40)) ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 1.07 [0.07, 15.54]1 study · 29 participantsVery low
Bright white light therapy vs infrared light therapy
Overall discontinuation ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 1.33 [0.35, 5.13]1 study · 36 participantsVery low
Bright white light therapy vs no light therapy
Incidence of severe SAD (SIGH‐SAD‐SR (≥ 40)) ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 0.21 [0.03, 1.75]1 study · 23 participantsVery low
Bright white light therapy vs no light therapy
Overall discontinuation ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 2.22 [0.29, 17.27]1 study · 28 participantsVery low
Infrared light therapy vs no light therapy
Incidence of SAD (SIGH‐SAD score ≥ 20) ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 0.5 [0.21, 1.17]1 study · 24 participantsVery low
Infrared light therapy vs no light therapy
Incidence of severe SAD (SIGH‐SAD‐SR (≥ 40)) ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 0.2 [0.02, 1.64]1 study · 24 participantsVery low
Infrared light therapy vs no light therapy
Overall discontinuation ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 1.67 [0.2, 13.98]1 study · 28 participantsVery low
Light therapy vs no light therapy
Incidence of SAD (SIGH‐SAD score ≥ 20) ( · all participants were known SAD patients who had been successfully treated with conventional light therapy in previous…
Light therapy for preventing seasonal affective disorder (2019) · Cochrane
RR 0.57 [0.3, 1.1]1 study · 38 participantsVery low