Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

92 questions · 104 findings · 16 reviews · Headline outcomes only

No studies found 16 · 15.4%GRADE not reported 0 · 0%Very low 28 · 26.9%Low 35 · 33.7%Moderate 24 · 23.1%High 1 · 1%

Summary of findings table ‐ Protein, arginine, zinc and antioxidants vs standard diet or placebo

Time to complete healing of pressure ulcers ‐ not reported · residents of long‐term care (≥ 65 years) with pressure ulcers; inpatients with pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Summary of findings table ‐ Protein, arginine, zinc and antioxidants vs standard diet or placebo

Acceptability of nutritional supplements ‐ not reported · residents of long‐term care (≥ 65 years) with pressure ulcers; inpatients with pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Summary of findings table ‐ Protein, arginine, zinc and antioxidants vs standard diet or placebo

Gastrointestinal adverse events · residents of long‐term care (≥ 65 years) with pressure ulcers; inpatients with pressure ulcers

It is very uncertain whether summary of findings table ‐ Protein, arginine, zinc and antioxidants changes side effects: at least one adverse gastrointestinal event compared with standard diet or placebo (very low certainty).

1 finding from 1 review

Intervention not reported

Adverse events ‐ Miscarriage№ of participants: 304(3 RCTs) · women with subfertility

The intervention showed no clear difference in adverse events ‐ Miscarriage№ of participants: 304(3 RCTs) (low certainty).

1 finding from 1 review

Intervention not reported

Adverse events ‐ Multiple pregnancy · women with subfertility

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Adverse events ‐ Gastrointestinal disturbances · women with subfertility

The review found no eligible studies for this question.

1 finding from 1 review