Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,514 questions · 1,543 findings · 649 reviews

No studies found 224 · 14.5%GRADE not reported 105 · 6.8%Very low 383 · 24.8%Low 447 · 29%Moderate 293 · 19%High 91 · 5.9%

Intervention not reported

Adverse events ‐ Withdrawn for medical reasons: SSRI versus placebo · patients with depression during opioid agonist treatment for opioid dependence

The intervention showed no clear difference in adverse events ‐ Withdrawn for medical reasons: SSRI versus placebo (high certainty).

1 finding from 1 review

Oestrogen tablets vs other regimens

Adverse events (total adverse events) (oestrogen cream vs non‐hormonal lubricant gel) · postmenopausal women with vaginal atrophy

Oestrogen tablets showed no clear difference in adverse events (total adverse events) (oestrogen tablets vs placebo) compared with other regimens (moderate certainty).

1 finding from 1 review

Intervention not reported

Adverse events ‐ Withdrawn for medical reasons: Tricyclics versus placebo · patients with depression during opioid agonist treatment for opioid dependence

The intervention leads to higher adverse events ‐ Withdrawn for medical reasons: Tricyclics versus… (high certainty).

1 finding from 1 review

Intervention not reported

Serious adverse events for all placebos compared with wait‐list or no treatment (Spontaneous reporting of dichotomous outcomes) (Post‐treatment) · patients with mental health disorders

It is very uncertain whether the intervention changes serious adverse events for all placebos compared with wait‐list or… (very low certainty).

1 finding from 1 review

Intervention not reported

Non‐serious adverse events for all placebos compared with wait‐list or no treatment (Spontaneous reporting of dichotomous outcomes) (Post‐treatment) · patients with mental health disorders

It is very uncertain whether the intervention changes non‐serious adverse events for all placebos compared with wait‐list… (very low certainty).

1 finding from 1 review

Intervention not reported

Adverse events 4 studies reported the frequency of self reported adverse events in the AED and placebo groups The results show a trend in favour of the placebo groups · people with epilepsy and intellectual disability

The intervention showed no clear difference in adverse events 4 studies reported the frequency of self reported… (moderate certainty).

1 finding from 1 review

Intervention not reported

Adverse events 1. All adverse events 2. Drop‐outs due to adverse events 3. Severe hypoglycaemia a. Intervention vs placebo [1a. 24 weeks] [2a. 24 weeks to 56 weeks] b. Intervention vs metformin [1b. 6 months to 4 years] [2b. 24 weeks to 4 years] [... · participants with type 2 diabetes mellitus

The intervention showed no clear difference in adverse events 1. All adverse events 2. Drop‐outs due to adverse… (low certainty).

1 finding from 1 review