Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,801 questions · 4,079 findings · 473 reviews

No studies found 669 · 16.4%GRADE not reported 852 · 20.9%Very low 738 · 18.1%Low 903 · 22.1%Moderate 716 · 17.6%High 201 · 4.9%

Metapex (calcium hydroxide/iodoform) vs RC Fill (ZOE with iodoform)

Outcome not reported · Children with extensive decay involving the dental pulp in primary teeth
1 finding from 1 review

Self-etch adhesive + acetone-based total-etch adhesive vs Calcium hydroxide (CH)

Clinical failure · Children with extensive decay involving the dental pulp in primary teeth

It is very uncertain whether self-etch adhesive + acetone-based total-etch adhesive changes clinical failure compared with calcium hydroxide (CH) (very low certainty).

1 finding from 1 review

Calcium-enriched mixture (CEM) cement vs Mineral trioxide aggregate (MTA)

Clinical failure · Children with extensive decay involving the dental pulp in primary teeth
2 findings from 1 review

Biodentine vs Tempophore

Clinical failure · Children with extensive decay involving the dental pulp in primary teeth

Biodentine showed no clear difference in clinical failure compared with tempophore; GRADE not reported.

1 finding from 1 review

Total-etching 36% phosphoric acid + acetone-based total-etch adhesive vs Non-rinse conditioner + acetone-based total-etch adhesive

Clinical failure · Children with extensive decay involving the dental pulp in primary teeth

It is very uncertain whether total-etching 36% phosphoric acid + acetone-based total-etch adhesive changes clinical failure compared with non-rinse conditioner + acetone-based total-etch adhesive (very low certainty).

1 finding from 1 review

Provision of maize flour or maize flour products fortified with iron plus other vitamins and minerals vs unfortified maize flours or maize flour products

Anaemia · general population older than 2 years of age (including pregnant women), in Kenya and Mexico

It is very uncertain whether provision of maize flour or maize flour products fortified with iron… changes anaemia (defined as haemoglobin (Hb) below WHO cut‐off, adjusted for… compared with unfortified maize flours or maize flour products (very low certainty).

1 finding from 1 review

Provision of maize flour or maize flour products fortified with iron plus other vitamins and minerals vs unfortified maize flours or maize flour products

Iron deficiency (as defined by study authors, based on a biomarker of iron status) · general population older than 2 years of age (including pregnant women), in Kenya and Mexico

It is very uncertain whether provision of maize flour or maize flour products fortified with iron… changes iron deficiency (as defined by trialists, based on a biomarker of… compared with unfortified maize flours or maize flour products (very low certainty).

1 finding from 1 review

Provision of maize flour or maize flour products fortified with iron plus other vitamins and minerals vs unfortified maize flours or maize flour products

Any adverse effects (including constipation, nausea, vomiting, heartburn or diarrhoea, as measured by trialists) · general population older than 2 years of age (including pregnant women), in Kenya and Mexico

The review found no eligible studies for this question.

1 finding from 1 review

Fixed‐dose combination aclidinium/formoterol vs placebo

Exacerbations requiring steroids or antibiotics or both: number of participants · patients with chronic obstructive pulmonary disease

Fixed‐dose combination aclidinium/formoterol showed no clear difference in exacerbations requiring steroids or antibiotics or both: number of… compared with placebo (moderate certainty).

1 finding from 1 review

Fixed‐dose combination aclidinium/formoterol vs placebo

Quality of life: number of participants with clinically significant improvement (≥ 4 units) in SGRQ total score · patients with chronic obstructive pulmonary disease

Fixed‐dose combination aclidinium/formoterol leads to higher quality of life: number of participants with clinically significant… compared with placebo (high certainty).

1 finding from 1 review