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Evidence found and GRADE certainty

4,678 questions · 4,859 findings · 283 reviews

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No studies found 1,225 · 25.2%GRADE not reported 215 · 4.4%Very low 1,241 · 25.5%Low 1,210 · 24.9%Moderate 776 · 16%High 192 · 4%

Summary of findings table ‐ Topical small molecule inhibitors (ruxolitinib) vs placebo

Short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of · adults with alopecia areata

Summary of findings table ‐ Topical small molecule inhibitors… showed no clear difference in short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with placebo (low certainty).

1 finding from 1 review

Summary of findings table ‐ Topical small molecule inhibitors (ruxolitinib) vs placebo

Incidence of serious adverse events · adults with alopecia areata

It is very uncertain whether summary of findings table ‐ Topical small molecule inhibitors… changes incidence of serious adverse events compared with placebo (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Metformin + levonorgestrel (intrauterine system) vs levonorgestrel intrauterine system

Regression of endometrial hyperplasia (with or without atypia) to proliferative, secretory, or atrophic endometrium · endometrial hyperplasia

It is very uncertain whether summary of findings table ‐ Metformin + levonorgestrel (intrauterine… changes regression of endometrial hyperplasia (with or without atypia) to… compared with levonorgestrel intrauterine system (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Metformin + levonorgestrel (intrauterine system) vs levonorgestrel intrauterine system

Hysterectomy rate · endometrial hyperplasia

It is very uncertain whether summary of findings table ‐ Metformin + levonorgestrel (intrauterine… changes hysterectomy rate compared with levonorgestrel intrauterine system (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Metformin + levonorgestrel (intrauterine system) vs levonorgestrel intrauterine system

Abnormal uterine bleeding · endometrial hyperplasia

It is very uncertain whether summary of findings table ‐ Metformin + levonorgestrel (intrauterine… changes abnormal uterine bleeding compared with levonorgestrel intrauterine system (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Metformin + levonorgestrel (intrauterine system) vs levonorgestrel intrauterine system

Adverse effects during treatment ‐ all effects · endometrial hyperplasia

It is very uncertain whether summary of findings table ‐ Metformin + levonorgestrel (intrauterine… changes adverse effects during treatment ‐ all effects compared with levonorgestrel intrauterine system (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Metformin + levonorgestrel (intrauterine system) vs levonorgestrel intrauterine system

Adverse events: nausea · endometrial hyperplasia

It is very uncertain whether summary of findings table ‐ Metformin + levonorgestrel (intrauterine… changes adverse effects during treatment ‐ nausea compared with levonorgestrel intrauterine system (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Metformin + levonorgestrel (intrauterine system) vs levonorgestrel intrauterine system

Adverse effects during treatment ‐ heaviness in lower abdomen · endometrial hyperplasia

It is very uncertain whether summary of findings table ‐ Metformin + levonorgestrel (intrauterine… changes adverse effects during treatment ‐ heaviness in lower abdomen compared with levonorgestrel intrauterine system (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Metformin + levonorgestrel (intrauterine system) vs levonorgestrel intrauterine system

Adverse effects during treatment ‐ pain in abdomen · endometrial hyperplasia

It is very uncertain whether summary of findings table ‐ Metformin + levonorgestrel (intrauterine… changes adverse effects during treatment ‐ pain in abdomen compared with levonorgestrel intrauterine system (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Cognitive behavioural therapy plus standard care vs control

Global state ‐ number of participants with relapse/exacerbations of psychosis (combined time points) · recent‐onset psychosis (less than three years since the start of psychotic symptoms and either first or second psychotic episode)

Summary of findings table ‐ Cognitive behavioural therapy plus… showed no clear difference in global state ‐ number of participants with relapse/exacerbations of… compared with control (low certainty).

1 finding from 1 review

Summary of findings table ‐ Cognitive behavioural therapy plus standard care vs control

Leaving the study early ‐ for any reason ‐ overall acceptability (combined time points) · recent‐onset psychosis (less than three years since the start of psychotic symptoms and either first or second psychotic episode)

Summary of findings table ‐ Cognitive behavioural therapy plus… showed no clear difference in leaving the study early ‐ for any reason ‐ overall acceptability… compared with control (moderate certainty).

1 finding from 1 review