Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,126 questions · 1,225 findings · 111 reviews

No studies found 235 · 19.2%GRADE not reported 260 · 21.2%Very low 207 · 16.9%Low 271 · 22.1%Moderate 177 · 14.4%High 75 · 6.1%

Vitamin K vs control

Uncarboxylated osteocalcin: change in carboxylation of osteocalcin (% Glu‐OC) · adults and children with cystic fibrosis

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin E vs placebo

Tardive dyskinesia: No clinically important improvement · patients with antipsychotic‐induced tardive dyskinesia

VITAMIN E showed no clear difference in tardive dyskinesia: 1. Not improved to a clinically important extent compared with PLACEBO (low certainty).

1 finding from 1 review

Vitamin E vs placebo

Tardive dyskinesia: Deterioration of symptoms · patients with antipsychotic‐induced tardive dyskinesia

VITAMIN E may leads to lower tardive dyskinesia: 3. Deterioration of symptoms compared with PLACEBO (low certainty).

1 finding from 1 review

Vitamin E vs placebo

Adverse effect: any · patients with antipsychotic‐induced tardive dyskinesia

It is very uncertain whether VITAMIN E changes adverse effect: any compared with PLACEBO (very low certainty).

1 finding from 1 review

Vitamin E vs placebo

Leaving the study early · patients with antipsychotic‐induced tardive dyskinesia

It is very uncertain whether VITAMIN E changes acceptability of treatment (measured by participants leaving the… compared with PLACEBO (very low certainty).

1 finding from 1 review