Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

262 questions · 309 findings · 35 reviews

No studies found 66 · 21.4%GRADE not reported 46 · 14.9%Very low 85 · 27.5%Low 60 · 19.4%Moderate 38 · 12.3%High 14 · 4.5%

Laser therapy vs other treatments

Incidence and severity of treatment‐related adverse effects ‐ 585‐nm PDL versus silicone gel sheeting ‐ pain during laser treatments ‐ hypertrophic scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy changes incidence and severity of treatment‐related adverse effects ‐ 585‐nm… compared with other treatments (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Other therapies (cryotherapy) vs other therapies (fractional CO2 laser)

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

It is very uncertain whether summary of findings table ‐ Other therapies (cryotherapy) changes short‐term hair regrowth ≥ 75% compared with other therapies (fractional CO2 laser) (very low certainty).

1 finding from 1 review