Cochrane · systematic review · CD011621

Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff

Verbeek, JH, Rajamaki, B, Ijaz, S, et al. · Cochrane Database of Systematic Reviews · 2020 · Cochrane Library

Work4 versionsAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
42
current version
GRADE rated
39
No studies
1
Included studies
NR
No studies 1 · 2.4%Ungraded 2 · 4.8%Very low 34 · 81%Low 5 · 11.9%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Current version only

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

Population: healthcare staff volunteers
CD011621.PUB5 (current) · 3 questions
OutcomeEffectEvidenceStatus / GRADE
Any contamination: fluorescent marker
Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown
RR 0.27 [0.17, 0.43]50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Compliance: noncompliance with donning guidance
Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown
RR 7.5 [1.81, 31.1]50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Compliance: noncompliance with doffing guidance
Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown
RR 0.5 [0.2, 1.23]50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Personal protective equipment (PPE) types: more protective versus less protective

Population: healthcare worker volunteers
CD011621.PUB5 (current) · 7 questions
OutcomeEffectEvidenceStatus / GRADE
Number of contaminated spots: trunk Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Number of contaminated spots: neck Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Number of contaminated spots: foot Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Number of contaminated spots: palm Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Number of contaminated spots: trunk or neck Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extractedNRNo studies
Usability score Range 1 to 5, higher indicating better
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Compliance with guidance
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted0 studies · 0 participantsUngraded

Personal protective equipment (PPE) types: gowns versus aprons

Population: healthcare worker volunteers
CD011621.PUB5 (current) · 3 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination with marker: individual type of doffing
Personal protective equipment (PPE) types: gowns vs aprons
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Contamination with marker: CDC‐recommended doffing
Personal protective equipment (PPE) types: gowns vs aprons
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Compliance with guidance
Personal protective equipment (PPE) types: gowns vs aprons
no estimate extracted0 studies · 0 participantsUngraded

Personal protective equipment (PPE) types: different types of PPE attire

Population: healthcare workers
CD011621.PUB5 (current) · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Any contamination
no estimate extracted1 study · 59 participantsVery low
Downgraded: risk of bias, imprecision
Compliance
no estimate extracted1 study · 59 participantsVery low
Downgraded: risk of bias, imprecision

Modified personal protective equipment (PPE): sealed gown‐glove interface versus standard gown

Population: healthcare workers
CD011621.PUB5 (current) · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: fluorescent lotion
Modified personal protective equipment (PPE): sealed gown‐glove interface vs standard gown
RR 0.27 [0.09, 0.78]1 study · 30 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination: MS2
Modified personal protective equipment (PPE): sealed gown‐glove interface vs standard gown
RR 0.68 [0.47, 0.98]1 study · 30 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Modified personal protective equipment (PPE): gown ‐ easy to doff compared to standard gown

Population: healthcare workers
CD011621.PUB5 (current) · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: fluorescent marker
Modified personal protective equipment (PPE): gown ‐ easy to doff vs standard gown
RR 0.08 [0.01, 0.55]1 study · 62 participantsLow
Contamination: bacteriophage
Modified personal protective equipment (PPE): gown ‐ easy to doff vs standard gown
RR 0.53 [0.29, 0.94]1 study · 62 participantsLow

Modified personal protective equipment (PPE): gown with gown‐glove improvement compared to standard gown and gloves

Population: healthcare workers
CD011621.PUB5 (current) · 1 question
OutcomeEffectEvidenceStatus / GRADE
People with contamination
Modified personal protective equipment (PPE): gown with gown‐glove improvement vs standard gown and gloves
RR 0.45 [0.26, 0.78]2 studies · 50 participantsLow
Downgraded: risk of bias

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

Population: healthcare workers
CD011621.PUB5 (current) · 1 question
OutcomeEffectEvidenceStatus / GRADE
Any contamination of hands
Modified personal protective equipment (PPE): gloves with tab vs standard gloves
RR 0.22 [0.15, 0.31]1 study · 317 participantsVery low
Downgraded: risk of bias, indirectness

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

Population: healthcare workers
CD011621.PUB5 (current) · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination of mask from hands
Modified personal protective equipment (PPE): mask plus tabs vs standard masks
RR 0.33 [0.14, 0.8]1 study · 20 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination of head from hands
Modified personal protective equipment (PPE): mask plus tabs vs standard masks
RR 0.96 [0.83, 1.12]1 study · 20 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Procedures: doffing according to Centers for Disease Control and Prevention method versus individual doffing

Population: healthcare worker volunteers
CD011621.PUB5 (current) · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination with fluor marker when using gowns
Procedures: doffing according to Centers for Disease Control and Prevention method vs individual doffing
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination with fluor marker when using aprons
Procedures: doffing according to Centers for Disease Control and Prevention method vs individual doffing
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Procedures: single‐step doffing compared to Centers for Disease Control and Prevention standard

Population: preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare workers
CD011621.PUB5 (current) · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Fluorescent contamination
Procedures: single‐step doffing vs Centers
RR 0.98 [0.75, 1.28]1 study · 22 participantsVery low
Bacterial contamination
Procedures: single‐step doffing vs Centers
RR 0.2 [0.05, 0.77]1 study · 27 participantsVery low

Procedures: doffing with double gloves compared to doffing with single gloves

Population: healthcare workers
CD011621.PUB5 (current) · 6 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: virus detected ‐ all body parts
Procedures: doffing with double gloves vs doffing with single gloves
RR 0.34 [0.17, 0.66]1 study · 58 participantsVery low
Contamination: virus detected ‐ face
Procedures: doffing with double gloves vs doffing with single gloves
RR 4.39 [0.53, 36.37]1 study · 58 participantsVery low
Contamination: virus detected ‐ shirt
Procedures: doffing with double gloves vs doffing with single gloves
RR 1.01 [0.79, 1.29]1 study · 58 participantsVery low
Contamination: virus detected ‐ pants
Procedures: doffing with double gloves vs doffing with single gloves
RR 0.91 [0.52, 1.58]1 study · 36 participantsVery low
Non‐compliance: any error
Procedures: doffing with double gloves vs doffing with single gloves
RR 1.08 [0.7, 1.67]1 study · 36 participantsVery low
Contamination with fluorescent
Procedures: doffing with double gloves vs doffing with single gloves
RR 0.98 [0.75, 1.28]1 study · 22 participantsVery low

Procedures: donning and doffing with instructions compared to without instruction

Population: healthcare workers
CD011621.PUB5 (current) · 3 questions
OutcomeEffectEvidenceStatus / GRADE
People with one or more errors
Procedures: donning and doffing with instructions vs without instruction
RR 0.31 [0.11, 0.93]1 study · 120 participantsVery low
Mean errors
Procedures: donning and doffing with instructions vs without instruction
no estimate extracted1 study · 120 participantsVery low
Fluorescence contamination
Procedures: donning and doffing with instructions vs without instruction
no estimate extracted1 study · 24 participantsLow

Procedures: doffing with extra sanitation of gloves compared to standard no sanitation

Population: healthcare workers
CD011621.PUB5 (current) · 3 questions
OutcomeEffectEvidenceStatus / GRADE
Bacterial contamination: alcohol‐based hand rub
Procedures: doffing with extra sanitation of gloves vs standard no sanitation
RR 0.75 [0.39, 1.45]1 study · 46 participantsLow
Bacterial contamination: quaternary ammonium
Procedures: doffing with extra sanitation of gloves vs standard no sanitation
no estimate extracted1 study · 20 participantsVery low
Downgraded: risk of bias
Bacterial contamination: bleach
Procedures: doffing with extra sanitation of gloves vs standard no sanitation
no estimate extracted2 studies · 20 participantsVery low
Downgraded: risk of bias

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

Population: healthcare workers
CD011621.PUB5 (current) · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: MS2
Procedures: doffing with hypochlorite vs doffing with alcohol‐based glove sanitiser
RR 4 [0.47, 34.24]1 study · 15 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination: Ph6
Procedures: doffing with hypochlorite vs doffing with alcohol‐based glove sanitiser
no estimate extracted1 study · 15 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Teaching: video‐based learning versus traditional lecture

Population: healthcare workers
CD011621.PUB5 (current) · 1 question
OutcomeEffectEvidenceStatus / GRADE
Skills in PPE donning
Teaching: video‐based learning vs traditional lecture
no estimate extracted1 study · 26 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

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

Population: healthcare staff volunteers
CD011621.PUB4 · 3 questions
OutcomeEffectEvidenceStatus / GRADE
Any contamination: fluorescent marker
Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown
RR 0.27 [0.17, 0.43]50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Compliance: noncompliance with donning guidance
Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown
RR 7.5 [1.81, 31.1]50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Compliance: noncompliance with doffing guidance
Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown
RR 0.5 [0.2, 1.23]50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Personal protective equipment (PPE) types: more protective versus less protective

Population: healthcare worker volunteers
CD011621.PUB4 · 7 questions
OutcomeEffectEvidenceStatus / GRADE
Number of contaminated spots: trunk Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Number of contaminated spots: neck Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Number of contaminated spots: foot Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Number of contaminated spots: palm Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Number of contaminated spots: trunk or neck Fluorescent marker
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extractedNRNo studies
Usability score Range 1 to 5, higher indicating better
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Compliance with guidance
Personal protective equipment (PPE) types: more protective vs less protective
no estimate extracted0 studies · 0 participantsUngraded

Personal protective equipment (PPE) types: gowns versus aprons

Population: healthcare worker volunteers
CD011621.PUB4 · 3 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination with marker: individual type of doffing
Personal protective equipment (PPE) types: gowns vs aprons
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Contamination with marker: CDC‐recommended doffing
Personal protective equipment (PPE) types: gowns vs aprons
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Compliance with guidance
Personal protective equipment (PPE) types: gowns vs aprons
no estimate extracted0 studies · 0 participantsUngraded

Personal protective equipment (PPE) types: different types of PPE attire

Population: healthcare workers
CD011621.PUB4 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Any contamination
no estimate extracted1 study · 59 participantsVery low
Downgraded: risk of bias, imprecision
Compliance
no estimate extracted1 study · 59 participantsVery low
Downgraded: risk of bias, imprecision

Modified personal protective equipment (PPE): sealed gown‐glove interface versus standard gown

Population: healthcare workers
CD011621.PUB4 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: fluorescent lotion
Modified personal protective equipment (PPE): sealed gown‐glove interface vs standard gown
RR 0.27 [0.09, 0.78]1 study · 30 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination: MS2
Modified personal protective equipment (PPE): sealed gown‐glove interface vs standard gown
RR 0.68 [0.47, 0.98]1 study · 30 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Modified personal protective equipment (PPE): gown ‐ easy to doff compared to standard gown

Population: healthcare workers
CD011621.PUB4 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: fluorescent marker
Modified personal protective equipment (PPE): gown ‐ easy to doff vs standard gown
RR 0.08 [0.01, 0.55]1 study · 62 participantsLow
Contamination: bacteriophage
Modified personal protective equipment (PPE): gown ‐ easy to doff vs standard gown
RR 0.53 [0.29, 0.94]1 study · 62 participantsLow

Modified personal protective equipment (PPE): gown with gown‐glove improvement compared to standard gown and gloves

Population: healthcare workers
CD011621.PUB4 · 1 question
OutcomeEffectEvidenceStatus / GRADE
People with contamination
Modified personal protective equipment (PPE): gown with gown‐glove improvement vs standard gown and gloves
RR 0.45 [0.26, 0.78]2 studies · 50 participantsLow
Downgraded: risk of bias

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

Population: healthcare workers
CD011621.PUB4 · 1 question
OutcomeEffectEvidenceStatus / GRADE
Any contamination of hands
Modified personal protective equipment (PPE): gloves with tab vs standard gloves
RR 0.22 [0.15, 0.31]1 study · 317 participantsVery low
Downgraded: risk of bias, indirectness

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

Population: healthcare workers
CD011621.PUB4 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination of mask from hands
Modified personal protective equipment (PPE): mask plus tabs vs standard masks
RR 0.33 [0.14, 0.8]1 study · 20 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination of head from hands
Modified personal protective equipment (PPE): mask plus tabs vs standard masks
RR 0.96 [0.83, 1.12]1 study · 20 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Procedures: doffing according to Centers for Disease Control and Prevention method versus individual doffing

Population: healthcare worker volunteers
CD011621.PUB4 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination with fluor marker when using gowns
Procedures: doffing according to Centers for Disease Control and Prevention method vs individual doffing
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination with fluor marker when using aprons
Procedures: doffing according to Centers for Disease Control and Prevention method vs individual doffing
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Procedures: single‐step doffing compared to Centers for Disease Control and Prevention standard

Population: preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare workers
CD011621.PUB4 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Fluorescent contamination
Procedures: single‐step doffing vs Centers
RR 0.98 [0.75, 1.28]1 study · 22 participantsVery low
Bacterial contamination
Procedures: single‐step doffing vs Centers
RR 0.2 [0.05, 0.77]1 study · 27 participantsVery low

Procedures: doffing with double gloves compared to doffing with single gloves

Population: healthcare workers
CD011621.PUB4 · 6 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: virus detected ‐ all body parts
Procedures: doffing with double gloves vs doffing with single gloves
RR 0.34 [0.17, 0.66]1 study · 58 participantsVery low
Contamination: virus detected ‐ face
Procedures: doffing with double gloves vs doffing with single gloves
RR 4.39 [0.53, 36.37]1 study · 58 participantsVery low
Contamination: virus detected ‐ shirt
Procedures: doffing with double gloves vs doffing with single gloves
RR 1.01 [0.79, 1.29]1 study · 58 participantsVery low
Contamination: virus detected ‐ pants
Procedures: doffing with double gloves vs doffing with single gloves
RR 0.91 [0.52, 1.58]1 study · 36 participantsVery low
Non‐compliance: any error
Procedures: doffing with double gloves vs doffing with single gloves
RR 1.08 [0.7, 1.67]1 study · 36 participantsVery low
Contamination with fluorescent
Procedures: doffing with double gloves vs doffing with single gloves
RR 0.98 [0.75, 1.28]1 study · 22 participantsVery low

Procedures: donning and doffing with instructions compared to without instruction

Population: healthcare workers
CD011621.PUB4 · 3 questions
OutcomeEffectEvidenceStatus / GRADE
People with one or more errors
Procedures: donning and doffing with instructions vs without instruction
RR 0.31 [0.11, 0.93]1 study · 120 participantsVery low
Mean errors
Procedures: donning and doffing with instructions vs without instruction
no estimate extracted1 study · 120 participantsVery low
Fluorescence contamination
Procedures: donning and doffing with instructions vs without instruction
no estimate extracted1 study · 24 participantsLow

Procedures: doffing with extra sanitation of gloves compared to standard no sanitation

Population: healthcare workers
CD011621.PUB4 · 3 questions
OutcomeEffectEvidenceStatus / GRADE
Bacterial contamination: alcohol‐based hand rub
Procedures: doffing with extra sanitation of gloves vs standard no sanitation
RR 0.75 [0.39, 1.45]1 study · 46 participantsLow
Bacterial contamination: quaternary ammonium
Procedures: doffing with extra sanitation of gloves vs standard no sanitation
no estimate extracted1 study · 20 participantsVery low
Downgraded: risk of bias
Bacterial contamination: bleach
Procedures: doffing with extra sanitation of gloves vs standard no sanitation
no estimate extracted2 studies · 20 participantsVery low
Downgraded: risk of bias

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

Population: healthcare workers
CD011621.PUB4 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: MS2
Procedures: doffing with hypochlorite vs doffing with alcohol‐based glove sanitiser
RR 4 [0.47, 34.24]1 study · 15 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination: Ph6
Procedures: doffing with hypochlorite vs doffing with alcohol‐based glove sanitiser
no estimate extracted1 study · 15 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Teaching: video‐based learning versus traditional lecture

Population: healthcare workers
CD011621.PUB4 · 1 question
OutcomeEffectEvidenceStatus / GRADE
Skills in PPE donning
Teaching: video‐based learning vs traditional lecture
no estimate extracted1 study · 26 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

PPE‐types: One type of PPE versus another – PAPR versus E‐RCP attire

Population: Healthcare staff volunteers
CD011621.PUB3 · 4 questions
OutcomeEffectEvidenceStatus / GRADE
Any contamination fluorescent marker
PPE‐types: One type of PPE vs another – PAPR versus E‐RCP attire
RR 0.27 [0.17, 0.43]50 participantsVery low
Downgraded: imprecision, indirectness
Compliance with guidance ‐ Noncompliance with donning guidance
PPE‐types: One type of PPE vs another – PAPR versus E‐RCP attire
RR 7.5 [1.81, 31.1]50 participantsVery low
Downgraded: imprecision, indirectness
Compliance with guidance ‐ Noncompliance with doffing guidance
PPE‐types: One type of PPE vs another – PAPR versus E‐RCP attire
RR 0.5 [0.2, 1.23]50 participantsVery low
Downgraded: imprecision, indirectness
Infection with EVD
PPE‐types: One type of PPE vs another – PAPR versus E‐RCP attire
no estimate extracted0 studies · 0 participantsUngraded

PPE‐types: One type of PPE versus another – Three types of PPE attire

Population: Healthcare worker volunteers
CD011621.PUB3 · 5 questions
OutcomeEffectEvidenceStatus / GRADE
Number of contaminated spots ‐ Neck fluorescent marker
PPE‐types: One type of PPE vs another – Three types of PPE attire
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Number of contaminated spots ‐ Foot fluorescent marker
PPE‐types: One type of PPE vs another – Three types of PPE attire
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Number of contaminated spots ‐ Palm fluorescent marker
PPE‐types: One type of PPE vs another – Three types of PPE attire
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Infection with EVD
PPE‐types: One type of PPE vs another – Three types of PPE attire
no estimate extracted0 studies · 0 participantsUngraded
Compliance with guidance
PPE‐types: One type of PPE vs another – Three types of PPE attire
no estimate extracted0 studies · 0 participantsUngraded

PPE‐types:One type of PPE versus another – Gowns versus aprons

Population: Healthcare worker volunteers
CD011621.PUB3 · 4 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination with marker; individual type of doffing
PPE‐types:One type of PPE vs another – Gowns versus aprons
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Contamination with marker; CDC recommended doffing
PPE‐types:One type of PPE vs another – Gowns versus aprons
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Infection with EVD
PPE‐types:One type of PPE vs another – Gowns versus aprons
no estimate extracted0 studies · 0 participantsUngraded
Compliance with guidance
PPE‐types:One type of PPE vs another – Gowns versus aprons
no estimate extracted0 studies · 0 participantsUngraded

PPE types: One type of PPE versus another ‐ Five types of PPE attire

Population: Preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff
CD011621.PUB3 · 1 question
OutcomeEffectEvidenceStatus / GRADE
Any contamination
PPE types: One type of PPE vs another ‐ Five types of PPE attire
no estimate extracted1 study · 1 participantsVery low

PPE‐types: One type of PPE versus another ‐ Sealed suit compared to Traditional suit

Population: Preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff
CD011621.PUB3 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination fluorescent lotion
PPE‐types: One type of PPE vs another ‐ Sealed suit compared to Traditional suit
RR 0.27 [0.09, 0.78]1 study · 30 participantsVery low
Downgraded: indirectness
Contamination MS2
PPE‐types: One type of PPE vs another ‐ Sealed suit compared to Traditional suit
RR 0.68 [0.47, 0.98]1 study · 30 participantsVery low
Downgraded: indirectness

Procedures: Doffing with double gloves versus doffing with single gloves

Population: Healthcare staff volunteers
CD011621.PUB3 · 3 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: virus detected ‐ All body parts
Procedures: Doffing with double gloves vs doffing with single gloves
RR 0.36 [0.16, 0.78]18 participantsVery low
Downgraded: imprecision, indirectness
Compliance with guidance ‐ Noncompliance: any error
Procedures: Doffing with double gloves vs doffing with single gloves
RR 1.08 [0.7, 1.67]18 participantsVery low
Downgraded: imprecision, indirectness
Infection with EVD
Procedures: Doffing with double gloves vs doffing with single gloves
no estimate extracted0 studies · 0 participantsUngraded

Procedures: Gloves with tab versus standard gloves

Population: Preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff
CD011621.PUB3 · 1 question
OutcomeEffectEvidenceStatus / GRADE
Any contamination of hands
Procedures: Gloves with tab vs standard gloves
OR 0.07 [0.04, 0.12]1 study · 317 participantsVery low
Downgraded: risk of bias

Procedures: Mask tabs versus No mask tabs

Population: Preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff
CD011621.PUB3 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination of mask from hands
Procedures: Mask tabs vs No mask tabs
RR 0.33 [0.14, 0.8]1 study · 20 participantsVery low
Downgraded: risk of bias
Contamination of head from hands
Procedures: Mask tabs vs No mask tabs
RR 0.96 [0.83, 1.12]1 study · 120 participantsVery low
Downgraded: risk of bias

Procedures: Doffing according to CDC method versus individual doffing

Population: Healthcare staff volunteers
CD011621.PUB3 · 4 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination with fluor marker when using gowns
Procedures: Doffing according to CDC method vs individual doffing
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Contamination with fluor marker when using aprons
Procedures: Doffing according to CDC method vs individual doffing
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Infection with EVD
Procedures: Doffing according to CDC method vs individual doffing
no estimate extracted0 studies · 0 participantsUngraded
Compliance with guidance
Procedures: Doffing according to CDC method vs individual doffing
no estimate extracted0 studies · 0 participantsUngraded

Procedures: Doffing with Hypochlorite versus doffing with Alcohol‐based glove sanitizer

Population: Preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff
CD011621.PUB3 · 2 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination MS2
Procedures: Doffing with Hypochlorite vs doffing with Alcohol‐based glove sanitizer
RR 4 [0.47, 34.24]1 study · 15 participantsVery low
Downgraded: risk of bias
Contamination Ph6
Procedures: Doffing with Hypochlorite vs doffing with Alcohol‐based glove sanitizer
no estimate extracted1 study · 15 participantsUngraded

Procedures: Doffing with Chlorine spray versus doffing without spray

Population: Preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff
CD011621.PUB3 · 1 question
OutcomeEffectEvidenceStatus / GRADE
Infection Rate (IgG level)
Procedures: Doffing with Chlorine spray vs doffing without spray
no estimate extracted0 studies · 1 participantsVery low
Downgraded: risk of bias

Teaching: Video‐based learning versus traditional lecture

Population: Preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff
CD011621.PUB3 · 1 question
OutcomeEffectEvidenceStatus / GRADE
Skills in PPE donning
Teaching: Video‐based learning vs traditional lecture
no estimate extracted1 study · 26 participantsVery low
Downgraded: risk of bias

Comparison 1: One type of PPE versus another – PAPR versus E‐RCP attire

Population: healthcare staff volunteers
CD011621.PUB2 · 4 questions
OutcomeEffectEvidenceStatus / GRADE
Any contamination fluorescent marker
Comparison 1: One type of PPE vs another – PAPR versus E‐RCP attire
RR 0.27 [0.17, 0.43]50 participantsVery low
Downgraded: imprecision, indirectness
Compliance with guidance ‐ Noncompliance with donning guidance
Comparison 1: One type of PPE vs another – PAPR versus E‐RCP attire
RR 7.5 [1.81, 31.1]50 participantsVery low
Downgraded: imprecision, indirectness
Compliance with guidance ‐ Noncompliance with doffing guidance
Comparison 1: One type of PPE vs another – PAPR versus E‐RCP attire
RR 0.5 [0.2, 1.23]50 participantsVery low
Downgraded: imprecision, indirectness
Infection with EVD
Comparison 1: One type of PPE vs another – PAPR versus E‐RCP attire
no estimate extracted0 studies · 0 participantsUngraded

Comparison 1: One type of PPE versus another – Three types of PPE attire

Population: healthcare worker volunteers
CD011621.PUB2 · 5 questions
OutcomeEffectEvidenceStatus / GRADE
Number of contaminated spots ‐ Neck fluorescent marker
Comparison 1: One type of PPE vs another – Three types of PPE attire
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Number of contaminated spots ‐ Foot fluorescent marker
Comparison 1: One type of PPE vs another – Three types of PPE attire
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Number of contaminated spots ‐ Palm fluorescent marker
Comparison 1: One type of PPE vs another – Three types of PPE attire
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Infection with EVD
Comparison 1: One type of PPE vs another – Three types of PPE attire
no estimate extracted0 studies · 0 participantsUngraded
Compliance with guidance
Comparison 1: One type of PPE vs another – Three types of PPE attire
no estimate extracted0 studies · 0 participantsUngraded

Comparison 1: One type of PPE versus another – Gowns versus aprons

Population: healthcare worker volunteers
CD011621.PUB2 · 4 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination with marker; individual type of doffing
Comparison 1: One type of PPE vs another – Gowns versus aprons
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Contamination with marker; CDC recommended doffing
Comparison 1: One type of PPE vs another – Gowns versus aprons
no estimate extracted1 study · 50 participantsVery low
Downgraded: imprecision, indirectness
Infection with EVD
Comparison 1: One type of PPE vs another – Gowns versus aprons
no estimate extracted0 studies · 0 participantsUngraded
Compliance with guidance
Comparison 1: One type of PPE vs another – Gowns versus aprons
no estimate extracted0 studies · 0 participantsUngraded

Comparison 2: One procedure for donning/doffing versus another – Doffing with double gloves compared to doffing with single gloves

Population: healthcare staff volunteers
CD011621.PUB2 · 3 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination: virus detected ‐ All body parts
Comparison 2: One procedure for donning/doffing vs another – Doffing with double gloves compared to doffing with single gloves
RR 0.36 [0.16, 0.78]18 participantsVery low
Downgraded: imprecision
Compliance with guidance ‐ Noncompliance: any error
Comparison 2: One procedure for donning/doffing vs another – Doffing with double gloves compared to doffing with single gloves
RR 1.08 [0.7, 1.67]18 participantsVery low
Downgraded: imprecision
Infection with EVD
Comparison 2: One procedure for donning/doffing vs another – Doffing with double gloves compared to doffing with single gloves
no estimate extracted0 studies · 0 participantsUngraded

Comparison 2: One procedure for donning/doffing versus another – CDC method versus individual doffing

Population: healthcare staff volunteers
CD011621.PUB2 · 4 questions
OutcomeEffectEvidenceStatus / GRADE
Contamination with fluor marker when using gowns
Comparison 2: One procedure for donning/doffing vs another – CDC method versus individual doffing
no estimate extracted1 study · 50 participantsVery low
Downgraded: indirectness
Contamination with fluor marker when using aprons
Comparison 2: One procedure for donning/doffing vs another – CDC method versus individual doffing
no estimate extracted1 study · 50 participantsVery low
Downgraded: indirectness
Infection with EVD
Comparison 2: One procedure for donning/doffing vs another – CDC method versus individual doffing
no estimate extracted0 studies · 0 participantsUngraded
Compliance with guidance
Comparison 2: One procedure for donning/doffing vs another – CDC method versus individual doffing
no estimate extracted0 studies · 0 participantsUngraded