Self-assessment and visual-assessment variables used in this study were similar to those used in earlier studies dealing with the effects of frequent hand washing on
human skin.
21 Since nurses were aware of which products they were using and that the condition of their skin was being monitored, it is possible that self-assessments may have been biased in favor of the alcoholic–hand-gel regimen.
We made a concerted effort to blind the study nurse who performed visual assessments of the participants’ hands.
However, we cannot exclude the possibility that she may have recalled the regimen to which some participants were assigned, leading to potential observer bias.
Because the Corneometer device used for measuring electrical capacitance of the skin yielded digital readouts, the objective measurements of epidermal water content are unlikely to be biased.
All three methods used to assess the condition of nurses’ hands yielded concordant results, namely, that nurses experienced greater skin dryness and irritation when using soap and water than when using the alcoholic hand gel.
Self-assessment and visual-assessment variables used in this study were similar to those used in earlier studies dealing with the effects of frequent hand washing on
human skin.
21 Since nurses were aware of which products they were using and that the condition of their skin was being monitored, it is possible that self-assessments may have been biased in favor of the alcoholic–hand-gel regimen.
We made a concerted effort to blind the study nurse who performed visual assessments of the participants’ hands.
However, we cannot exclude the possibility that she may have recalled the regimen to which some participants were assigned, leading to potential observer bias.
Because the Corneometer device used for measuring electrical capacitance of the skin yielded digital readouts, the objective measurements of epidermal water content are unlikely to be biased.
All three methods used to assess the condition of nurses’ hands yielded concordant results, namely, that nurses experienced greater skin dryness and irritation when using soap and water than when using the alcoholic hand gel.
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