Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,771 questions · 10,185 findings · 893 reviews

No studies found 2,109 · 20.7%GRADE not reported 1,125 · 11%Very low 2,279 · 22.4%Low 2,514 · 24.7%Moderate 1,709 · 16.8%High 449 · 4.4%

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Summary of findings table ‐ CBT without antipsychotics vs no specific treatment

Leaving the study early/ loss to · schizophrenia

Summary of findings table ‐ CBT without antipsychotics showed no clear difference in leaving the study early ‐ for any reason ‐ overall acceptability… compared with no specific treatment (low certainty).

1 finding from 1 review

Summary of findings table ‐ CBT without antipsychotics vs antipsychotics

Global state ‐ number of participants with relapse/exacerbations of psychosis (separated time points) ‐ < 12 months · schizophrenia

It is very uncertain whether summary of findings table ‐ CBT without antipsychotics changes global state ‐ number of participants with relapse/exacerbations of… compared with antipsychotics (very low certainty).

1 finding from 1 review

Summary of findings table ‐ CBT without antipsychotics vs antipsychotics

Leaving the study early/ loss to · schizophrenia

It is very uncertain whether summary of findings table ‐ CBT without antipsychotics changes leaving the study early ‐ for any reason ‐ overall acceptability… compared with antipsychotics (very low certainty).

1 finding from 1 review

Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate)

Association between orthodontic treatment duration and ICLs incidence · Patients undergoing fixed orthodontic treatment with fixed (multibracket) appliances, followed for development of new ICLs

ICLs incidence increased with longer orthodontic treatment duration (meta-regression P<.01; ungraded).

1 finding from 1 review

Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate)

Incidence of new ICLs (proportion of subjects developing new lesions) · Patients undergoing fixed orthodontic treatment with fixed (multibracket) appliances, followed for development of new ICLs

About 48% of patients developed new ICLs during fixed orthodontic treatment (pooled incidence 0.48, 95% CI 0.33-0.63; very low certainty; very high heterogeneity).

1 finding from 1 review

Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate)

Prevalence of ICLs (proportion of tooth surfaces affected) · Patients (permanent dentition) during or after fixed orthodontic treatment with fixed (multibracket) appliances

About 22% of tooth surfaces showed ICLs during/after fixed orthodontic treatment (pooled 0.22, 95% CI 0.14-0.33; very low certainty; extreme heterogeneity).

1 finding from 1 review

Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate)

Prevalence of ICLs (proportion of subjects affected) · Patients (permanent dentition) during or after fixed orthodontic treatment with fixed (multibracket) appliances

Around 57% of patients had ICLs during or after fixed orthodontic treatment (pooled prevalence 0.57, 95% CI 0.48-0.65; very low certainty; very high heterogeneity).

1 finding from 1 review

Lamotrigine vs placebo

50% or greater reduction in seizure frequency · people with drug‐resistant focal epilepsy

Summary of findings: lamotrigine probably leads to higher 50% or greater reduction in seizure frequency (ITT analysis) compared with placebo (moderate certainty).

1 finding from 1 review