Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,097 questions · 3,266 findings · 631 reviews

No studies found 430 · 13.2%GRADE not reported 193 · 5.9%Very low 995 · 30.5%Low 904 · 27.7%Moderate 591 · 18.1%High 153 · 4.7%

Modified personal protective equipment (PPE): gloves with tab vs standard gloves

Any contamination of hands · healthcare workers

It is very uncertain whether modified personal protective equipment (PPE): gloves with tab changes any contamination of hands compared with standard gloves (very low certainty).

1 finding from 1 review

Modified personal protective equipment (PPE): mask plus tabs vs standard masks

Contamination of mask from hands · healthcare workers

It is very uncertain whether modified personal protective equipment (PPE): mask plus tabs changes contamination of mask from hands compared with standard masks (very low certainty).

1 finding from 1 review

Modified personal protective equipment (PPE): mask plus tabs vs standard masks

Contamination of head from hands · healthcare workers

It is very uncertain whether modified personal protective equipment (PPE): mask plus tabs changes contamination of head from hands compared with standard masks (very low certainty).

1 finding from 1 review

Procedures: doffing with double gloves vs doffing with single gloves

Contamination: virus detected ‐ All body parts · healthcare workers

It is very uncertain whether procedures: doffing with double gloves changes contamination: virus detected ‐ all body parts compared with doffing with single gloves (very low certainty).

1 finding from 1 review

Procedures: doffing with double gloves vs doffing with single gloves

Contamination: virus detected ‐ face · healthcare workers

It is very uncertain whether procedures: doffing with double gloves changes contamination: virus detected ‐ face compared with doffing with single gloves (very low certainty).

1 finding from 1 review

Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown

Compliance with guidance ‐ Noncompliance with doffing guidance · healthcare worker volunteers

It is very uncertain whether personal protective equipment (PPE) types: powered, air‐purifying… changes compliance: noncompliance with doffing guidance compared with N95 mask plus gown (very low certainty).

1 finding from 1 review

Procedures: doffing with double gloves vs doffing with single gloves

Contamination: virus detected ‐ shirt · healthcare workers

It is very uncertain whether procedures: doffing with double gloves changes contamination: virus detected ‐ shirt compared with doffing with single gloves (very low certainty).

1 finding from 1 review

Procedures: doffing with double gloves vs doffing with single gloves

Contamination: virus detected ‐ pants · healthcare workers

It is very uncertain whether procedures: doffing with double gloves changes contamination: virus detected ‐ pants compared with doffing with single gloves (very low certainty).

1 finding from 1 review

Procedures: doffing with double gloves vs doffing with single gloves

Compliance with guidance ‐ Noncompliance: any error · healthcare workers

It is very uncertain whether procedures: doffing with double gloves changes non‐compliance: any error compared with doffing with single gloves (very low certainty).

1 finding from 1 review

Procedures: doffing with double gloves vs doffing with single gloves

Contamination with fluorescent · healthcare workers

It is very uncertain whether procedures: doffing with double gloves changes contamination with fluorescent compared with doffing with single gloves (very low certainty).

1 finding from 1 review

Procedures: donning and doffing with instructions vs No special instructions (control)

People with one or more errors · healthcare workers

It is very uncertain whether procedures: donning and doffing with instructions changes people with one or more errors compared with without instruction (very low certainty).

1 finding from 1 review

Procedures: doffing with extra sanitation of gloves vs standard no sanitation

Bacterial contamination: alcohol‐based hand rub · healthcare workers

Procedures: doffing with extra sanitation of gloves showed no clear difference in bacterial contamination: alcohol‐based hand rub compared with standard no sanitation (low certainty).

1 finding from 1 review

Procedures: doffing with hypochlorite vs doffing with alcohol‐based glove sanitiser

Contamination: MS2 · healthcare workers

It is very uncertain whether procedures: doffing with hypochlorite changes contamination: MS2 compared with doffing with alcohol‐based glove sanitiser (very low certainty).

1 finding from 1 review