Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,361 questions · 1,518 findings · 352 reviews

No studies found 73 · 4.8%GRADE not reported 211 · 13.9%Very low 500 · 32.9%Low 411 · 27.1%Moderate 252 · 16.6%High 71 · 4.7%

Lower unemployment rate vs Higher unemployment rate (low <=5% / medium >5-10% / high >10%)

Odds of higher caries (DMFT) category · 12-year-old children across European countries (national/regional epidemiological surveys, 2011-2022)

Unemployment rate was not independently associated with DMFT category in the adjusted model (OR 0.99, 95% CI 0.44 to 2.23); not GRADE-rated.

1 finding from 1 review

Late (seven days or more following birth) higher vs lower sodium intake

Mortality Mortality at latest · preterm or low birth weight infants

It is very uncertain whether late (seven days or more following birth) higher changes mortality (latest time reported up to hospital discharge) compared with lower sodium intake (very low certainty).

1 finding from 1 review

Higher number of lost teeth (per one additional lost tooth) vs Fewer lost teeth (continuous, per-tooth increment)

All-cause mortality (ACM) · Adults (any age) with a known number of remaining teeth, followed prospectively in cohort studies

Each additional lost tooth was associated with a multivariable-adjusted HR of 1.02 (95% CI 1.01 to 1.03) for all-cause mortality (11 studies, I2=89%), statistically significant; GRADE per-analysis ratings reported in Supplementary File 7 (not available in provided sources).

3 findings from 1 review