. 2009 Jun;37(5):417-419.
doi: 10.1016/j.ajic.2008.11.002. Epub 2009 Feb 12.
Use of surgical face masks to reduce the incidence of the common cold among health care workers in Japan: a randomized controlled trial
- PMID: 19216002
- DOI: 10.1016/j.ajic.2008.11.002
Background: Health care workers outside surgical suites in Asia use surgical-type face masks commonly. Prevention of upper respiratory infection is one reason given, although evidence of effectiveness is lacking.
Methods: Health care workers in a tertiary care hospital in Japan were randomized into 2 groups: 1 that wore face masks and 1 that did not. They provided information about demographics, health habits, and quality of life. Participants recorded symptoms daily for 77 consecutive days, starting in January 2008. Presence of a cold was determined based on a previously validated measure of self-reported symptoms. The number of colds between groups was compared, as were risk factors for experiencing cold symptoms.
Results: Thirty-two health care workers completed the study, resulting in 2464 subject days. There were 2 colds during this time period, 1 in each group. Of the 8 symptoms recorded daily, subjects in the mask group were significantly more likely to experience headache during the study period (P < .05). Subjects living with children were more likely to have high cold severity scores over the course of the study.
Conclusion: Face mask use in health care workers has not been demonstrated to provide benefit in terms of cold symptoms or getting colds. A larger study is needed to definitively establish noninferiority of no mask use.
Disposable surgical face masks: a systematic review.Can Oper Room Nurs J. 2005 Sep;23(3):20-1, 24-5, 33-8.PMID: 16295987 Review.
Surgical mask vs N95 respirator for preventing influenza among health care workers: a randomized trial.JAMA. 2009 Nov 4;302(17):1865-71. doi: 10.1001/jama.2009.1466. Epub 2009 Oct 1.PMID: 19797474 Clinical Trial.
Masks for prevention of respiratory viruses on the BMT unit: results of a quality initiative.Transpl Infect Dis. 2016 Dec;18(6):965-967. doi: 10.1111/tid.12608. Epub 2016 Nov 9.PMID: 27632416
A cluster randomised trial of cloth masks compared with medical masks in healthcare workers.BMJ Open. 2015 Apr 22;5(4):e006577. doi: 10.1136/bmjopen-2014-006577.PMID: 25903751 Free PMC article. Clinical Trial.
Surgical face masks in the operating theatre: re-examining the evidence.J Hosp Infect. 2001 Apr;47(4):251-6. doi: 10.1053/jhin.2000.0912.PMID: 11289767 Review.
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