Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

308 questions · 329 findings · 30 reviews

No studies found 59 · 17.9%GRADE not reported 62 · 18.8%Very low 93 · 28.3%Low 77 · 23.4%Moderate 27 · 8.2%High 11 · 3.3%

Primary school-based behavioural intervention (both oral hygiene and dietary components) vs No treatment (or delayed treatment)

Frequency of cariogenic food and drink consumption · Children aged 4 to 12 years attending primary school
1 finding from 1 review

Primary school-based behavioural intervention (both oral hygiene and dietary components) vs No treatment (or delayed treatment)

Frequency of toothbrushing · Children aged 4 to 12 years attending primary school
1 finding from 1 review

Dietary supplements (alpha lipoic acid +/- vitamins/lycopene/green tea; hypericum; Catuama; lycopene) vs placebo

Relief of burning/discomfort (symptom relief; pain intensity) · People with primary burning mouth syndrome (BMS), that is, oral mucosal pain with no dental or medical cause for such symptoms
1 finding from 1 review
  • Interventions for treating burning mouth syndrome 2016 · Cochrane All outcomes
    short-term (up to 3 months)
    SoF5 Dietary supplements vs placebo. Symptom relief short-term: insufficient or contradictory evidence regarding benefit of any evaluated dietary supplement; 628 participants (12 RCTs); very low. Subgroups: ALA without…
    12 studies · 628 participants
    Very low

Culturally adapted health literacy skills building course vs no/unrelated health literacy intervention

Health behaviour – Time point a: short‐term (up to 1 month post‐intervention) Multiple outcomes assessed and multiple measures used: (1) Fat‐related dietary habits Fat‐Related Diet Habits Questionnaire (score · migrants
1 finding from 1 review

Targeted mass media intervention vs targeted mass media intervention plus personalised content

Intake meeting target from dietary guidelines, 3 months from baseline · adult, ethnic minority groups: Latino immigrants, elderly Chinese immigrants, self‐described Americans of African heritage

It is very uncertain whether targeted mass media intervention changes intake meeting target from dietary guidelines, 3 months from baseline compared with targeted mass media intervention plus personalised content (very low certainty).

1 finding from 1 review

Targeted mass media intervention vs targeted mass media intervention plus personalised content

Changes in dietary composition, 12 months from baseline · adult, ethnic minority groups: Latino immigrants, elderly Chinese immigrants, self‐described Americans of African heritage
1 finding from 1 review

Intervention not reported

Salt intake in grams per day ‐ all eligible studies that provided sufficient data for quantitative analysis of overall impact (n = 10 countries) · ‐level interventions in national government jurisdictions to reduce sodium consumption
1 finding from 1 review

Intervention not reported

Salt intake in grams per day ‐ subset of initiatives that are multi‐component and incorporate activities of a structural nature (n = 7 countries) · ‐level interventions in national government jurisdictions to reduce sodium consumption
1 finding from 1 review