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Table 1

Description of the respondents of the survey.

Main characteristics of the respondents Number (%)
Age (years)  
   20–24 21 (8.0%)
   25–29 89 (35.0%)
   30–35 119 (46.7%)
   > 35 26 (10.3%)
Sex  
   Male 172 (67.0%)
   Female 84 (33.0%)
Country (of origin)  
   China 46 (18.3%)
   France 25 (10.0%)
   Germany 25 (10.0%)
   Switzerland 25 (10.0%)
   Belgium 19 (7.6%)
   Japan 15 (6.0.%)
   Spain 15 (6.0%)
   Austria 7 (2.8%)
   Czech Republic 7 (2.8%)
   South Korea 7 (2.8%)
   United States of America 7 (2.8%)
   Finland 6 (2.4%)
   Italy 6 (2.4%)
   United Kingdom 6 (2.4%)
   Romania 5 (2.0%)
   Slovenia 5 (2.0%)
   Australia 4 (1.6%)
   Canada 4 (1.6%)
   Ghana 3 (1.2%)
   The Netherlands 3 (1.2%)
   Brazil 2 (0.8%)
   Hungary 2 (0.8%)
   Sweden 2 (0.8%)
   Argentina 1 (0.4%)
   Bosnia 1 (0.4%)
   Cyprus 1 (0.4%)
   Portugal 1 (0.4%)
   United Arab Emirates 1 (0.4%)
Are you a classified worker?  
   Yes 182 (71.4%)
   No 73 (28.6%)
Level of annual exposure (mSv/year)  
   0 64 (40.0%)
   0–0.1 31 (19.4%)
   0.1–1 40 (25.0%)
   1–5 21 (13.0%)
   > 5 4 (2.5%)
Initial background  
   Engineer 82 (32.0%)
   Technician 48 (18.7%)
   Doctor/PhD 43 (16.8%)
   Other 31 (12.1%)
   Still studying 30 (11.7%)
   Worker/employee 22 (8.6%)

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