Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

897 questions · 966 findings · 73 reviews

No studies found 269 · 27.8%GRADE not reported 101 · 10.5%Very low 284 · 29.4%Low 180 · 18.6%Moderate 107 · 11.1%High 25 · 2.6%

Pharmacological treatment vs placebo

Prolonged abstinence at longest · smokers with COPD

Pharmacological treatment leads to higher prolonged abstinence at longest compared with placebo (high certainty).

5 findings from 1 review
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Pharmacological detoxification treatment vs other pharmacological detoxification treatment

Withdrawal symptoms · management of opium withdrawal
4 findings from 1 review
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Intervention not reported

Fatigue severity at the end of pharmacological treatment (assessed by different fatigue scales) · people with stroke with fatigue

It is very uncertain whether the intervention changes fatigue severity at the end of pharmacological treatment (assessed… (very low certainty).

1 finding from 1 review

Intervention not reported

Fatigue severity at the end of non‐pharmacological treatment (assessed by different fatigue scales) · people with stroke with fatigue

It is very uncertain whether the intervention changes fatigue severity at the end of non‐pharmacological treatment… (very low certainty).

1 finding from 1 review