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Table 1 Sociodemographic characteristics and transmission risk factors before and during lockdown

From: Sociodemographic characteristics and transmission risk factors in patients hospitalized for COVID-19 before and during the lockdown in France

  Total Infected before lockdown Infected during lockdown p
Total population, N (%) 383 (100.0) 305 (79.6) 78 (20.4)  
Demographic characteristics
 Men, n (%) 237 (61.9) 187 (61.3) 50 (64.1) 0.65
 Age (median ± IQR) 61 (39–83) 60 (39–81) 66.5 (43–90) 0.03
Nationality, n (%)
 French 234 (61.1) 188 (61.6) 46 (59.0)  
 European 18 (4.7) 13 (4.3) 5 (6.4)  
 Non-European 131 (34.2) 104 (34.1) 27 (34.6) 0.65
Social characteristics
 Occupation, n (%)
  Active* 154 (40.2) 135 (44.3) 19 (24.4)  
  Unemployed 51 (13.3) 40 (13.1) 11 (14.1)  
  Retired 136 (35.5) 100 (32.8) 36 (46.2)  
  Other or undetermined 42 (11.0) 30 (9.8) 12 (15.4) 0.01
 Housing, n (%)
  Individual accommodation 341 (89.0) 283 (92.8) 58 (74.4)  
  Social 15 (3.9) 10 (3.3) 5 (6.4)  
  Homeless 7 (1.8) 3 (1.0) 4 (5.1)  
  Institutionalized 20 (5.2) 9 (3.0) 11 (14.1) < 0.01
 Number of persons in the household, n (%)
  1 67 (17.5) 56 (18.4) 11 (14.1)  
  2–4 199 (52.0) 164 (53.8) 35 (44.9)  
   ≥ 5 or collective housing 90 (23.5) 73 (23.9) 17 (21.8) 0.92
Non-French-speaking, n (%) 33 (8.6) 20 (6.6) 13 (16.7) < 0.01
No health insurance, n (%) 24 (6.3) 18 (5.9) 6 (7.7) 0.60
Transmission risk factors
 Relative, n (%) 101 (26.4) 75 (24.6) 26 (33.3) 0.16
 Nosocomial exposure, n (%) 44 (11.5) 35 (11.5) 9 (11.5) 0.99
 Profession at risk, n (%) 40 (10.4) 33 (11.1) 7 (9.0) 0.79
 Travel, n (%) 30 (7.8) 30 (9.8) 0 (0.0) < 0.01
 Disadvantaged conditions, n (%) 22 (5.7) 13 (4.3) 9 (11.5) 0.03
 Institutionalized patients, n (%) 20 (5.2) 9 (3.0) 11 (14.1) < 0.01
 Large gathering, n (%) 10 (2.6) 10 (3.3) 0 (0.0) 0.22
 No evident cause of infection, n (%) 136 (35.5) 120 (39.3) 16 (20.5) < 0.01
  1. *Active: employee/self-employed/executive