Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

705 questions · 723 findings · 78 reviews

No studies found 198 · 27.4%GRADE not reported 30 · 4.1%Very low 158 · 21.9%Low 211 · 29.2%Moderate 98 · 13.6%High 28 · 3.9%

Intervention not reported

Infusion‐related reactions (number of participants with one or more reaction) · adults and children with mucopolysaccharidosis I

The intervention showed no clear difference in infusion‐related reactions (number of participants with one or more… (low certainty).

1 finding from 1 review

Intervention not reported

Antibody production: number of participants developing IgG antibodies · adults and children with mucopolysaccharidosis I

It is very uncertain whether the intervention changes antibody production: number of participants developing IgG antibodies (very low certainty).

1 finding from 1 review

Thyroxine vs placebo or no treatment

Live birth rate – euthyroid women with anti‐TPO antibodies · subfertile women with euthyroid autoimmune thyroid disease or subclinical hypothyroidism

Thyroxine showed no clear difference in live birth rate – euthyroid women with anti‐TPO antibodies compared with placebo or no treatment (low certainty).

1 finding from 1 review

Thyroxine vs placebo or no treatment

Adverse events including maternal pregnancy complications, foetal complications and adverse effects of thyroxine · subfertile women with euthyroid autoimmune thyroid disease or subclinical hypothyroidism

Thyroxine led to lower adverse events including maternal pregnancy complications, foetal… compared with placebo or no treatment; GRADE not reported.

1 finding from 1 review

Thyroxine vs placebo or no treatment

Miscarriage – anti‐TPO antibodies · subfertile women with euthyroid autoimmune thyroid disease or subclinical hypothyroidism

Thyroxine showed no clear difference in miscarriage – anti‐TPO antibodies compared with placebo or no treatment (low certainty).

1 finding from 1 review

Intervention not reported

Smoking cessation at 6+ months · people who smoke cigarettes

The intervention leads to higher smoking cessation at 6+ months (high certainty).

1 finding from 1 review

Intervention not reported

Infusion‐related events · infantile‐onset Pompe disease

The intervention showed no clear difference in infusion‐related events (low certainty).

1 finding from 1 review

Intervention not reported

Changes in globotriaosylceramide (Gb3) concentration in plasma · Anderson‐Fabry disease
1 finding from 1 review