Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

901 questions · 1,073 findings · 138 reviews

No studies found 166 · 15.5%GRADE not reported 310 · 28.9%Very low 213 · 19.9%Low 227 · 21.2%Moderate 132 · 12.3%High 25 · 2.3%

Anticoagulant drugs: VKA high dose vs vitamin K antagonist (VKA)

Major bleeding · people with antiphospholipid syndrome and a history of stroke or thromboembolic events

High‐dose VKA showed no clear difference in major bleeding compared with standard‐dose VKA (low certainty).

1 finding from 1 review

Populations in countries with a lower Human Development Index (high category, HDI <0.800) vs Populations in countries with a higher Human Development Index (very high, HDI >=0.800)

Caries experience (mean DMFT) · Adults aged 19-60 years

Pooled caries experience (DMFT) was similar in very-high-HDI and high-HDI countries, and meta-regression found no significant association between national HDI and DMFT; ungraded observational evidence with very high heterogeneity.

3 findings from 1 review