Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,324 questions · 1,405 findings · 189 reviews

No studies found 402 · 28.6%GRADE not reported 294 · 20.9%Very low 323 · 23%Low 232 · 16.5%Moderate 117 · 8.3%High 37 · 2.6%

Chemical peeling vs combined chemical peeling plus any active intervention

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

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

1 finding from 1 review

Chemical peeling vs combined chemical peeling plus any active intervention

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

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

1 finding from 1 review

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs no intervention or control intervention (control)

Oral mucositis (any severity) · All patients with cancer who are receiving treatment

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed… showed no clear difference in oral mucositis (any severity) compared with control (no treatment or standard/usual oral care, e.g. saline rinse) (low certainty).

3 findings from 1 review

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs Chlorhexidine rinse

Oral mucositis (any severity) · Adults with solid cancers receiving fluorouracil (5FU) and leucovorin

It is very uncertain whether oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed… changes oral mucositis (any severity) compared with chlorhexidine rinse (very low certainty).

1 finding from 1 review

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs Low-dose leucovorin rinse

Oral mucositis (any severity) · Patients with osteosarcoma (bone cancer) receiving high-dose methotrexate, vincristine and leucovorin

It is very uncertain whether oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed… changes oral mucositis (any severity) compared with low-dose leucovorin rinse (very low certainty).

1 finding from 1 review

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs High-dose leucovorin rinse

Oral mucositis (any severity) · Patients with osteosarcoma (bone cancer) receiving high-dose methotrexate, vincristine and leucovorin

It is very uncertain whether oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed… changes oral mucositis (any severity) compared with high-dose leucovorin rinse (very low certainty).

1 finding from 1 review

Intervention not reported

Prevalence of psychological trauma (short term: up to 3 months postpartum) Measured by various scales ‐ Impact of Event Scale (IES), MINI‐PTSD · Women of any age who had given birth within one month of the intervention being offered

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Prevalence of depression or depressive symptoms (short term: up to 3 months postpartum) Measured by various scales ‐ EPDS, HADS · Women of any age who had given birth within one month of the intervention being offered

The review found no eligible studies for this question.

1 finding from 1 review