A Randomized Clinical Trial of Three Options for N95 Respirators and Medical Masks in Health Workers

MacIntyre, C. Raina; Wang, Quanyi; Seale, Holly; Yang, Peng; Shi, Weixian; Gao, Zhanhai; Rahman, Bayzid; Zhang, Yi; Wang, Xiaoli; Newall, Anthony T.; Heywood, Anita; Dwyer, Dominic E.

doi:10.1164/rccm.201207-1164oc

A Randomized Clinical Trial of Three Options for N95 Respirators and Medical Masks in Health Workers

Rationale We compared three policy options for the use of medical masks and N95 respirators in healthcare workers (HCWs). Objectives A cluster randomized clinical trial of 1,669 hospital-based HCWs in Beijing, China in the winter of 2009–2010. Methods Participants were randomized to medical masks…