Social Behaviors Associated with a Positive COVID-19 Test Result

Objective: To compare behaviors of individuals who tested positive for COVID-19 relative to non-infected individuals. Methods: We sent COVID positive cases and age/gender matched controls a survey regarding their social behaviors via MyChart (online patient portal). We called cases if they did not complete the electronic survey within two days. Data was collected from May-June 2020. Survey responses for cases without a close contact and controls were compared using Pearson chi-square or Fishers Exact tests as appropriate. Results: A total of 339 participants completed the survey (113 cases, 226 controls); 45 (40%) cases had known contact with COVID-19. Cases were more likely to have recently traveled (4% vs. 0%, p=0.01) or to work outside the home (40% vs. 25%, p=0.02). There was no difference in the rates of attending private or public gatherings, mask/glove use, hand-washing, cleaning surfaces and cleaning mail/groceries between cases and controls. Conclusions: Sixty percent of cases had no known contact with COVID-19, indicating ongoing community transmission and underlining the importance of contact tracing. The greater percentage of cases who work outside the home provides further evidence for social distancing.