Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,815 questions · 6,211 findings · 638 reviews · Headline outcomes only

No studies found 1,052 · 16.9%GRADE not reported 441 · 7.1%Very low 1,700 · 27.4%Low 1,651 · 26.6%Moderate 1,070 · 17.2%High 297 · 4.8%

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Surgery plus whole brain radiotherapy (WBRT) vs stereotactic radiosurgery

Adverse events · people with single or solitary brain metastasis

It is very uncertain whether surgery plus whole brain radiotherapy (WBRT) changes adverse events compared with stereotactic radiosurgery (very low certainty).

1 finding from 1 review

Surgery plus whole brain radiotherapy (WBRT) vs stereotactic radiosurgery

Adverse events (moderate) · people with single or solitary brain metastasis

It is very uncertain whether surgery plus whole brain radiotherapy (WBRT) changes adverse events (moderate) compared with stereotactic radiosurgery (very low certainty).

1 finding from 1 review

Surgery plus whole brain radiotherapy (WBRT) vs stereotactic radiosurgery

Adverse events (severe) · people with single or solitary brain metastasis

It is very uncertain whether surgery plus whole brain radiotherapy (WBRT) changes adverse events (severe) compared with stereotactic radiosurgery (very low certainty).

1 finding from 1 review

Surgery plus whole brain radiotherapy (WBRT) vs stereotactic radiosurgery plus WBRT

Overall survival · people with single or solitary brain metastasis

Surgery plus whole brain radiotherapy (WBRT) showed no clear difference in overall survival compared with stereotactic radiosurgery plus WBRT (low certainty).

1 finding from 1 review

Surgery plus whole brain radiotherapy (WBRT) vs stereotactic radiosurgery plus WBRT

Adverse events (moderate) · people with single or solitary brain metastasis

It is very uncertain whether surgery plus whole brain radiotherapy (WBRT) changes adverse events (moderate) compared with stereotactic radiosurgery plus WBRT (very low certainty).

1 finding from 1 review

Surgery plus whole brain radiotherapy (WBRT) vs stereotactic radiosurgery plus WBRT

Progression‐free survival · people with single or solitary brain metastasis

Surgery plus whole brain radiotherapy (WBRT) showed no clear difference in progression‐free survival compared with stereotactic radiosurgery plus WBRT (low certainty).

1 finding from 1 review

Delayed chemotherapy vs immediate chemotherapy

Nausea and vomiting · patients with asymptomatic, incurable, metastatic colorectal cancer

It is very uncertain whether delayed chemotherapy changes toxicity – nausea and vomiting compared with immediate chemotherapy (very low certainty).

1 finding from 1 review

Delayed chemotherapy vs immediate chemotherapy

Toxicity – stomatitis · patients with asymptomatic, incurable, metastatic colorectal cancer

It is very uncertain whether delayed chemotherapy changes toxicity – stomatitis compared with immediate chemotherapy (very low certainty).

1 finding from 1 review

Delayed chemotherapy vs immediate chemotherapy

Toxicity – diarrhoea · patients with asymptomatic, incurable, metastatic colorectal cancer

It is very uncertain whether delayed chemotherapy changes toxicity – diarrhoea compared with immediate chemotherapy (very low certainty).

1 finding from 1 review

Oral ivermectin 200 μg/kg (1 to 3 doses) vs topical permethrin 5% cream (1 to 3 applications)

Complete clearance · people with scabies, 2 to 80 years of ageLocation: India, Pakistan

Oral ivermectin 200 μg/kg (1 to 3 doses) may leads to lower complete clearance ‐ week 1 compared with topical permethrin 5% cream (1 to 3 applications) (low certainty).

5 findings from 1 review
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Oral ivermectin 200 μg/kg (1 to 2 doses) vs topical permethrin 5% lotion (1 to 5 applications)

Complete clearance · people with scabies, 5 to 60 years of ageLocation: Egypt, Pakistan

Oral ivermectin 200 μg/kg (1 to 2 doses) showed no clear difference in complete clearance ‐ week 1 ‐ IVER 1 dose versus PER on 5… compared with topical permethrin 5% lotion (1 to 5 applications) (low certainty).

4 findings from 1 review
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Oral ivermectin 200 μg/kg (1 to 2 doses) vs topical permethrin 5% lotion (1 to 5 applications)

Number of participants with ≥ 1 AE ‐ week 2 ‐ IVER 2 doses versus PER on 5 consecutive nights · people with scabies, 5 to 60 years of ageLocation: Egypt, Pakistan

It is very uncertain whether oral ivermectin 200 μg/kg (1 to 2 doses) changes number of participants with ≥ 1 AE ‐ week 2 ‐ IVER 2 doses versus… compared with topical permethrin 5% lotion (1 to 5 applications) (very low certainty).

1 finding from 1 review

Topical ivermectin vs topical permethrin 5% cream (1 to 3 applications)

Complete clearance · people with scabies, 5 to 80 years of ageLocation: India

Topical ivermectin 1% lotion (1 to 3 applications) showed no clear difference in complete clearance ‐ week 4 compared with topical permethrin 5% cream (1 to 3 applications) (moderate certainty).

1 finding from 1 review