• A Shigayeva, K Green, J M Raboud, B Henry, A E Simor, M Vearncombe, D Zoutman, M Loeb, A McGeer, and SARS Hospital Investigation Team.
• Department of Microbiology, Mount Sinai Hospital, Toronto, ON, M5G 1X5, Canada.
• Infect Control Hosp Epidemiol. 2007 Nov 1; 28 (11): 1275-83.

ObjectiveTo assess factors associated with adherence to recommended barrier precautions among healthcare workers (HCWs) providing care to critically ill patients with severe acute respiratory syndrome (SARS).SettingFifteen acute care hospitals in Ontario, Canada.DesignRetrospective cohort study.PatientsAll patients with SARS who required intubation during the Toronto SARS outbreak in 2003.ParticipantsHCWs who provided care to or entered the room of a SARS patient during the period from 24 hours before intubation until 4 hours after intubation.MethodsStandardized interviews were conducted with eligible HCWs to assess their interactions with the SARS patient, their use of barrier precautions, their practices for removing personal protective equipment, and the infection control training they received.ResultsOf 879 eligible HCWs, 795 (90%) participated. In multivariate analysis, the following predictors of consistent adherence to recommended barrier precautions were identified: recognition of the patient as a SARS case (odds ratio [OR], 2.5 [95% confidence interval {CI}, 1.5-4.5); recent infection control training (OR for interactive training, 2.7 [95% CI, 1.7-4.4]; OR for passive training, 1.7 [95% CI, 1.0-3.0]), and working in a SARS unit (OR, 4.0 [95% CI, 1.8-8.9]) or intensive care unit (OR, 4.3 [95% CI, 2.0-9.0]). Two factors were associated with significantly lower rates of consistent adherence: the provision of care for patients with higher Acute Physiology and Chronic Health Evaluation (APACHE) II scores (OR for score APACHE II of 20 or greater, 0.4 [95% CI, 0.28-0.68]) and work on shifts that required more frequent room entry (OR for 6 or more entries per shift, 0.5 [95% CI, 0.32-0.86]).ConclusionsThere were significant deficits in knowledge about self-protection that were partially corrected by education programs during the SARS outbreak. HCWs' adherence to self-protection guidelines was most closely associated with whether they provided care to patients who had received a definite diagnosis of SARS.

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