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Table 2 Factors associated with possible COVID-19: adjusted OR (95% CI) Multinomial regression results Reference group: probable infection prior to the lockdown. OR adjusted for all the variables presented in the table

From: When lockdown policies amplify social inequalities in COVID-19 infections: evidence from a cross-sectional population-based survey in France

  no symptoms/likely infection prior the lockdown P-Value likely infection during the lockdown/likely infection prior the lockdown P-Value
Age
 18–34 1   1  
 35–44 0.95 (0.77–1.17) 0.622 1.00 (0.72–1.38) 0.99
 45–54 0.87 (0.71–1.07) 0.198 0.69 (0.49–0.97) 0.035
 55–64 1.09 (0.86–1.37) 0.475 0.73 (0.49–1.07) 0.101
Sex
 Female 1   1  
 Male 1.00 (0.86–1.15) 0.95 1.03 (0.82–1.30) 0.809
Social Class
 Upper class 1   1  
 Upper middle class 0.98 (0.82–1.18) 0.861 1.09 (0.80–1.48) 0.594
 Lower middle class 1.15 (0.87–1.50) 0.322 1.28 (0.84–1.97) 0.251
 Working class 1.11 (0.83–1.49) 0.467 1.57 (1.00–2.48) 0.051
 Health professional 1.05 (0.69–1.61) 0.82 1.66 (0.91–3.04) 0.098
Professional status
 Unemployed at the time of lockdown’s onset 1   1  
 Employed and stopped working since COVID 1.03 (0.85–1.25) 0.77 0.79 (0.56–1.12) 0.181
 Full time teleworking 0.84 (0.67–1.05) 0.126 1.11 (0.78–1.58) 0.568
 in-person professional activities 1.25 (0.96–1.62) 0.104 1.53 (1.03–2.29) 0.037
Overcrowding housing 0.80 (0.60–1.06) 0.121 1.24 (0.80–1.90) 0.338
Region
 Ile-de-France 1   1  
 Grand Est 0.99 (0.83–1.18) 0.924 0.84 (0.63–1.13) 0.258
 Hauts-de-France 1.39 (1.13–1.71) 0.002 1.26 (0.91–1.74) 0.168
  1. 111 (1%) participants excluded from the multivariate model due to missing values including 41 with possible COVID-19. Chronic disease, obesity, smoking and individual preventive measures are not presented in the final model since the odds ratio for the social class remained of the same magnitude (Supplementary Table 1)