Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,109 questions · 1,155 findings · 70 reviews

No studies found 216 · 18.7%GRADE not reported 450 · 39%Very low 123 · 10.6%Low 195 · 16.9%Moderate 127 · 11%High 44 · 3.8%

Radiotherapy combined with anti‐VEGF vs anti‐VEGF alone

Progression to visual loss (loss of 3 or more lines on logMAR chart) · people with neovascular AMD

Radiotherapy combined with anti‐VEGF probably leads to higher loss of 3 or more lines of best‐corrected visual acuity Measured… compared with anti‐VEGF alone (moderate certainty).

1 finding from 1 review

Radiotherapy combined with anti‐VEGF vs anti‐VEGF alone

Change in visual acuity (logMAR) ‐ 12 months (negative is better) · people with neovascular AMD

Radiotherapy combined with anti‐VEGF showed no clear difference in change in best corrected visual acuity (logMAR units) Measured using… compared with anti‐VEGF alone (low certainty).

1 finding from 1 review

Pre-operative radiotherapy (plus surgery) vs surgery

Total mortality · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Pre-operative radiotherapy (plus surgery) showed no clear difference in total mortality compared with surgery alone; GRADE not reported.

1 finding from 1 review

Pre-operative radiotherapy (plus surgery) vs surgery

Locoregional control · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Pre-operative radiotherapy (plus surgery) showed no clear difference in locoregional control compared with surgery alone; GRADE not reported.

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Overall survival, induction cisplatin + 5-fluorouracil + docetaxel prior to concurrent chemoradiation (cisplatin) vs concurrent chemoradiation (cisplatin) · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction cisplatin + 5-fluorouracil + docetaxel… compared with locoregional treatment (radiotherapy and/or surgery) alone (low certainty).

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Locoregional control · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… led to lower locoregional control, induction cisplatin + 5-fluorouracil +… compared with locoregional treatment (radiotherapy and/or surgery) alone; GRADE not reported.

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Overall survival, induction platinum + 5-fluorouracil prior to surgery vs surgery alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction platinum + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (low certainty).

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Overall survival, induction cisplatin + 5-fluorouracil prior to concurrent chemoradiation (cisplatin) vs concurrent chemoradiation (cisplatin) · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction cisplatin + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (low certainty).

1 finding from 1 review

Surgery plus whole brain radiotherapy (WBRT) vs stereotactic radiosurgery

Overall survival · people with single or solitary brain metastasis

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

1 finding from 1 review

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