Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

538 questions · 568 findings · 96 reviews

No studies found 106 · 18.7%GRADE not reported 39 · 6.9%Very low 160 · 28.2%Low 151 · 26.6%Moderate 92 · 16.2%High 20 · 3.5%

Physical barriers (tongue protector + reinforced self-control instruction) 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

It is very uncertain whether physical barriers (tongue protector + reinforced self-control… changes relief of burning/discomfort (symptom relief; pain intensity) compared with placebo (very low certainty).

1 finding from 1 review

Multiple methods of breastfeeding support (including social, educational and/or physical support) vs usual care

Breastfeeding · pregnant or lactating women who were overweight or obese

It is very uncertain whether multiple methods of breastfeeding support (including social,… changes any breastfeeding at 6 months compared with usual care (very low certainty).

2 findings from 1 review

Multiple methods of breastfeeding support (including social, educational and/or physical support) vs usual care

Non‐initiation of breastfeeding · pregnant or lactating women who were overweight or obese

It is very uncertain whether multiple methods of breastfeeding support (including social,… changes non‐initiation of breastfeeding compared with usual care (very low certainty).

1 finding from 1 review

Multiple methods of breastfeeding support (including social, educational and/or physical support) vs usual care

Exclusive breastfeeding at 4‐6 weeks · pregnant or lactating women who were overweight or obese

It is very uncertain whether multiple methods of breastfeeding support (including social,… changes exclusive breastfeeding at 4‐6 weeks compared with usual care (very low certainty).

1 finding from 1 review

Multiple methods of breastfeeding support (including social, educational and/or physical support) vs usual care

Exclusive breastfeeding at 6 months · pregnant or lactating women who were overweight or obese

It is very uncertain whether multiple methods of breastfeeding support (including social,… changes exclusive breastfeeding at 6 months compared with usual care (very low certainty).

1 finding from 1 review