Skip to main content
. 2019 Jul 1;2019(7):CD011621. doi: 10.1002/14651858.CD011621.pub3

Summary of findings 9. Procedures: Doffing according to CDC method versus individual doffing.

CDC method versus individual doffing for preventing contact with contaminated body fluids in healthcare staff
Patient or population: Healthcare staff volunteers
 Settings: Simulation study
 Intervention: CDC method in doffing
Control: Individual method of doffing
Outcomes Illustrative comparative risks* (95% CI) Relative effect
 (95% CI) No of Participants
 (studies) Quality of the evidence
 (GRADE) Comments
Assumed risk Corresponding risk
Individual doffing method CDC recommended doffing method
Contamination with fluor marker when using gowns
Follow‐up: post intervention
The mean contamination with fluor marker in the control group was
 6.7 small spots The mean contamination with fluor marker in the intervention group was
 5.44 lower
 (7.43 to 3.45 lower)   50
 (1 study) ⊕⊝⊝⊝
 very low1,2,3 Cross‐over study; the analyses were unadjusted for the paired nature of the data but similar to the analysis of the authors who took this into account
Contamination with fluor marker when using aprons
Follow‐up: post intervention
The mean contamination with fluor marker in the control group was
 16.98 small spots The mean contamination with fluor marker in the intervention group was
 15.1 lower
 (19.28 to 10.92 lower)   50
 (1 study) ⊕⊝⊝⊝
 very low1,2,3  
Infection with EVD See comment See comment   0
(0 studies)
See comment No studies evaluated the effect of the interventions on infection rates.
Compliance with guidance See comment See comment   0
(0 studies)
See comment No studies evaluated the effect of the interventions on compliance with guidance.
*The basis for the assumed risk is the control group risk. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group.
 CI: Confidence interval;
GRADE Working Group grades of evidence
 High quality: Further research is very unlikely to change our confidence in the estimate of effect.
 Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
 Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
 Very low quality: We are very uncertain about the estimate.

1 The randomisation procedure was unclear and so we downgraded with one level due to study limitations.
 2 This is a simulation study so we downgraded with one level because of indirectness.
 3 One cross‐over study with 50 participants and so we downgraded with one level due to imprecision.