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Evidence found and GRADE certainty

18 questions · 18 findings · 1 reviews · Skin

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No studies found 12 · 66.7%GRADE not reported 0 · 0%Very low 6 · 33.3%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Fractional laser vs radiofrequency

Participant‐assessed adverse events (short‐term) · people with acne scars

The review found no eligible studies for this question.

1 finding from 1 review

Fractional laser vs combined chemical peeling plus needling

Participant‐reported scar improvement (long‐term) · people with acne scars

It is very uncertain whether fractional laser changes participant‐reported scar improvement (long‐term) N of participants… compared with combined chemical peeling plus needling (very low certainty).

1 finding from 1 review

Fractional laser vs combined chemical peeling plus needling

Participant‐assessed adverse events (short‐term) N of participants with adverse events · people with acne scars

It is very uncertain whether fractional laser changes participant‐assessed adverse events (short‐term) N of participants… compared with combined chemical peeling plus needling (very low certainty).

1 finding from 1 review

Fractional laser vs non‐fractional non‐ablative laser

Participant‐reported scar improvement (short‐term) N of participants with > 50% improvement in acne scars · people with acne scars

It is very uncertain whether fractional laser changes participant‐reported scar improvement (short‐term) N of participants… compared with non‐fractional non‐ablative laser (very low certainty).

1 finding from 1 review

Fractional laser vs non‐fractional non‐ablative laser

Adverse events ‐ hyperpigmentation ( · people with acne scars

It is very uncertain whether fractional laser changes investigator‐assessed adverse events (short‐term) Hyperpigmentation… compared with non‐fractional non‐ablative laser (very low certainty).

1 finding from 1 review

Fractional laser vs non‐fractional non‐ablative laser

Participant‐assessed adverse events (short‐term) Burning N of participants with adverse events · people with acne scars

It is very uncertain whether fractional laser changes participant‐assessed adverse events (short‐term) Burning N of… compared with non‐fractional non‐ablative laser (very low certainty).

1 finding from 1 review

Fractional laser vs radiofrequency

Participant‐reported scar improvement (long‐term) · people with acne scars

The review found no eligible studies for this question.

1 finding from 1 review

Fractional laser vs radiofrequency

Participant‐reported scar improvement (short‐term) N of participants with > 50% improvement in acne scars · people with acne scars

It is very uncertain whether fractional laser changes participant‐reported scar improvement (short‐term) N of participants… compared with radiofrequency (very low certainty).

1 finding from 1 review

Fractional laser vs radiofrequency

Investigator‐assessed adverse events (short‐term) · people with acne scars

The review found no eligible studies for this question.

1 finding from 1 review