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Volume 27, Number 8—August 2021
Research

Social Distancing, Mask Use, and Transmission of Severe Acute Respiratory Syndrome Coronavirus 2, Brazil, April–June 2020

Marcelo Rodrigues GonçalvesComments to Author , Rodrigo Citton Padilha dos Reis, Rodrigo Pedroso Tólio, Lucia Campos Pellanda, Maria Inês Schmidt, Natan Katz, Sotero Serrate Mengue, Pedro C. Hallal, Bernardo L. Horta, Mariangela Freitas Silveira, Roberto Nunes Umpierre, Cynthia Goulart Bastos-Molina, Rodolfo Souza da Silva, and Bruce B. Duncan
Author affiliations: Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil (M.R. Gonçalves, R.C.P. Reis, R.P. Tólio, M.I. Schmidt, N. Katz, S.S. Mengue, R.N. Umpierre, C.G. Bastos-Molina, R.S. da Silva, B.B. Duncan); Hospital de Clínicas de Porto Alegre, Porto Alegre (M.R. Gonçalves, M.I. Schmidt, R.N. Umpierre, C.G. Bastos-Molina, R.S. da Silva, B.B. Duncan); Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre (L.C. Pellanda); Municipal Health Department, Porto Alegre (N. Katz); Universidade Federal de Pelotas, Pelotas, Brazil (P.C. Hallal, B.L. Horta, M.F. Silveira); Universidade do Vale dos Sinos (UNISINOS), São Leopoldo, Brazil (C.G. Bastos-Molina)

Main Article

Table 3

Association of social distancing with severe acute respiratory syndrome coronavirus 2 infection, Porto Alegre, Brazil, April–June 2020

Characteristic, n = 1,667 Odds ratio (95% CI)
Model 1* Model 2† Model 3‡ Model 4§
Social distancing: How much have you managed to do?¶
Little 0.69 (0.38–1.26) 0.72 (0.39–1.32) 0.65 (0.35–1.21) 0.65 (0.34–1.22)
Moderate (Some) 0.29 (0.17–0.50) 0.30 (0.17–0.52) 0.28 (0.16–0.49) 0.30 (0.17–0.53)
High (A great deal) 0.24 (0.15–0.39) 0.28 (0.17–0.47) 0.25 (0.15–0.42) 0.26 (0.16–0.44)
Practically isolated from everyone
 0.38 (0.23–0.63)
 0.44 (0.26–0.75)
 0.41 (0.24–0.70)
 0.34 (0.20–0.60)
What has been your routine of activities?#
Go out every day for some activity 0.25 (0.13–0.46) 0.27 (0.14–0.50) 0.26 (0.13–0.49) 0.25 (0.12–0.48)
Go out from time to time for some activity 0.33 (0.21–0.51) 0.38 (0.24–0.59) 0.39 (0.24–0.61) 0.38 (0.23–0.60)
Go out just for essential activities 0.23 (0.16–0.31) 0.24 (0.17–0.34) 0.25 (0.18–0.36) 0.25 (0.18–0.35)
Stay at home all the time
 0.51 (0.33–0.77)
 0.51 (0.31–0.80)
 0.48 (0.29–0.77)
 0.25 (0.13–0.44)
Social distancing summary classification**
Little 0.76 (0.49–1.19) 0.80 (0.51–1.26) 0.73 (0.46–1.16) 0.75 (0.47–1.20)
Much 0.31 (0.20–0.46) 0.35 (0.23–0.54) 0.33 (0.22–0.52) 0.33 (0.22–0.52)
Most 0.37 (0.24–0.58) 0.40 (0.25–0.65) 0.38 (0.23–0.62) 0.27 (0.16–0.46)

*Crude model. †Model 1 with addition of sex, age, educational attainment, race, and income. ‡Model 2 with addition of household size and pandemic moment. §Model 3 but excluding case-patients for whom a proxy provided the interview. ¶Reference category: very little. #Reference category: go out every day, all day, to work or other regular activity. **Reference category: least.

Main Article

Page created: May 19, 2021
Page updated: July 18, 2021
Page reviewed: July 18, 2021
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