Findings

What do systematic reviews say?

357 questions · 363 findings · 46 reviews

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No studies found 99 · 27.3%GRADE not reported 88 · 24.2%Very low 74 · 20.4%Low 55 · 15.2%Moderate 40 · 11%High 7 · 1.9%

Intervention not reported

Socioeconomic impact associated with work · adults over 18 years with tinnitus

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for tinnitus 2016 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Anxiety and depression disorders · adults over 18 years with tinnitus

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for tinnitus 2016 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Psychoacoustic parameters · adults over 18 years with tinnitus

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for tinnitus 2016 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Tinnitus loudness (dB) · adults over 18 years with tinnitus

It is very uncertain whether the intervention changes tinnitus loudness (dB) (very low certainty).

1 finding from 1 review

Zinc supplementation for tinnitus 2016 · Cochrane Headline outcomes only
MD 0.5
1 study · 41 participants
Very low

Intervention not reported

Incidence of type 2 diabetes mellitus · non‐diabetic adults with insulin resistance

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for the prevention of type 2 diabetes mellitus in adults with insulin resistance 2015 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Diabetic complications · non‐diabetic adults with insulin resistance

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for the prevention of type 2 diabetes mellitus in adults with insulin resistance 2015 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Adverse events · non‐diabetic adults with insulin resistance

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for the prevention of type 2 diabetes mellitus in adults with insulin resistance 2015 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Health‐related quality of life · non‐diabetic adults with insulin resistance

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for the prevention of type 2 diabetes mellitus in adults with insulin resistance 2015 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

All‐cause mortality · non‐diabetic adults with insulin resistance

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for the prevention of type 2 diabetes mellitus in adults with insulin resistance 2015 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Socioeconomic effects · non‐diabetic adults with insulin resistance

The review found no eligible studies for this question.

1 finding from 1 review

Zinc supplementation for the prevention of type 2 diabetes mellitus in adults with insulin resistance 2015 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Duration of cold symptoms (days) · patients with common cold

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
no estimate extracted
14 studies · 1656 participants
Low

Intervention not reported

Severity of symptom score · patients with common cold

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 513 participants
Low

Intervention not reported

Incidence of common cold · patients with common cold

It is very uncertain whether the intervention changes incidence of common cold (very low certainty).

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
RR 0.64 [0.47, 0.88]
2 studies · 394 participants
Very low

Intervention not reported

Number of participants symptomatic after 7 days of treatment · patients with common cold

It is very uncertain whether the intervention changes number of participants symptomatic after 7 days of treatment (very low certainty).

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
OR 0.45 [0.2, 1]
5 studies · 476 participants
Very low

Intervention not reported

School absence (number of days) · patients with common cold

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 394 participants
Very low

Intervention not reported

Antibiotic use · patients with common cold

The intervention may leads to lower antibiotic use (low certainty).

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
OR 0.27 [0.16, 0.46]
2 studies · 394 participants
Low

Intervention not reported

Any adverse event · patients with common cold

The intervention led to higher any adverse event; GRADE not reported.

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
OR 1.58 [1.19, 2.09]
8 studies · 1217 participants
GRADE not reported