Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

1,773 questions · 1,817 findings · 212 reviews · Headline outcomes only

No studies found 383 · 21.1%GRADE not reported 192 · 10.6%Very low 472 · 26%Low 444 · 24.4%Moderate 228 · 12.5%High 98 · 5.4%

Higher‐dose vs lower‐dose nicotine patch

Smoking cessation · people who smoke

Higher‐dose showed no clear difference in smoking cessation ‐ 42/44 mg versus 21/22 mg (24‐hour patches) compared with lower‐dose nicotine patch (moderate certainty).

3 findings from 1 review

Higher‐dose vs lower‐dose nicotine patch

SAEs · people who smoke

Higher‐dose showed no clear difference in overall SAEs ‐ 42/44 mg versus 21/22 mg (24 hr patches) compared with lower‐dose nicotine patch (low certainty).

2 findings from 1 review

Higher‐dose vs lower‐dose nicotine patch

Treatment withdrawals ‐ 21 mg versus 14 mg (24‐hour patches) · people who smoke

Higher‐dose showed no clear difference in treatment withdrawals ‐ 21 mg versus 14 mg (24‐hour patches) compared with lower‐dose nicotine patch (low certainty).

1 finding from 1 review

High vs low stimulation

Paraesthesia · people with focal seizures

High showed no clear difference in paraesthesias compared with low stimulation (moderate certainty).

1 finding from 1 review

Next‐generation ALK inhibitor vs crizotinib

Health‐related quality of life: time to deterioration in composite endpoint (cough, dyspnoea, and chest pain) · advanced anaplastic lymphoma kinase (ALK)‐rearranged non‐small cell lung cancer

It is very uncertain whether next‐generation ALK inhibitor changes health‐related quality of life: time to deterioration in composite… compared with crizotinib (very low certainty).

1 finding from 1 review

ALK inhibitor vs any cytotoxic chemotherapy

Health‐related quality of life: time to deterioration in composite endpoint (cough, dyspnoea, and chest pain) · advanced anaplastic lymphoma kinase (ALK)‐rearranged non‐small cell lung cancer

ALK inhibitor leads to lower health‐related quality of life: time to deterioration in composite… compared with any cytotoxic chemotherapy (high certainty).

1 finding from 1 review

Sulthiame vs phenytoin

Paraesthesia · participants with epilepsy (GTCS)

Sulthiame showed no clear difference in paraesthesia compared with phenytoin (low certainty).

1 finding from 1 review

Intervention not reported

Chest infections · patients with hip fracture

The intervention probably leads to lower chest infections (moderate certainty).

1 finding from 1 review

Intervention not reported

Other outcomes included uncertainty, pain, sexually related symptoms, dyspnoea, and general symptoms. Data for any of these outcomes were not pooled due to considerable heterogeneity across all aspects. Magnitudes of effect were not reported · individuals with any cancer at any stage
1 finding from 1 review