Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,749 questions · 17,858 findings · 1,266 reviews

No studies found 4,359 · 24.4%GRADE not reported 2,348 · 13.1%Very low 4,634 · 25.9%Low 4,000 · 22.4%Moderate 2,052 · 11.5%High 465 · 2.6%

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Ultrasound‐guided foam sclerotherapy vs SFJ ligation and stripping (HL/S)

Technical success · people with GSV incompetence

Ultrasound‐guided foam sclerotherapy (UGFS) may leads to lower technical success (< 5 years) compared with SFJ ligation and stripping (HL/S) (low certainty).

2 findings from 1 review

Endovenous laser ablation (EVLA) vs foam sclerotherapy

Technical success · people with GSV incompetence

Endovenous laser ablation (EVLA) showed no clear difference in technical success (< 5 years) compared with ultrasound‐guided foam sclerotherapy (UGFS) (low certainty).

2 findings from 1 review

Nicotine replacement therapy vs placebo

Change in weight (kg) · People who have quit smoking

Nicotine replacement therapy for smoking cessation showed no clear difference in mean weight change (kg) at end of treatment compared with placebo (moderate certainty).

3 findings from 1 review

Varenicline vs placebo

Change in weight (kg) · People who have quit smoking

Varenicline for smoking cessation showed no clear difference in mean weight change (kg) at end of treatment compared with placebo (high certainty).

3 findings from 1 review

Fluoexetine vs placebo

Change in weight (kg) · People who have quit smoking

Fluoexetine showed no clear difference in mean weight change (kg) at end of treatment compared with placebo (low certainty).

2 findings from 1 review