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Table 1 Socio-demographical characteristics in BaroTest and 2016-Health Barometer samples, mainland France, 2016

From: HCV and HBV prevalence based on home blood self-sampling and screening history in the general population in 2016: contribution to the new French screening strategy

Characteristics BaroTest (eligible, n = 17,781)
18-75 years old
2016-HB (n = 20,032)
15-75 years old
Participants (n = 6,945)   Non participants (n = 10,836)  
wBT % 1 wHB %a wHB %a wHB %a
Gender Men 48.7 47.7   49.3 48.8
Women 51.3 52.3   50.7 51.2
Age (in years) 18-30 22.1 19.0 *** 23.9 25.4
31-45 27.6 26.3   27.3 26.3
46-60 29.1 30.7   28.4 27.9
61-75 21.2 24.0   20.4 20.4
Educational level < Secondary school certificate 49.7 46.3 *** 53.0 52.1
Secondary school certificate 20.0 20.4   19.4 19.2
Higher education qualification 29.8 33.1   27.3 28.5
Not specified 0.5 0.2   0.3 0.2
Place of residence in France Ile-de-France (Paris region) 19.0 15.6 *** 18.7 19.0
North-West 19.9 22.3   20.4 19.9
North-East 22.5 22.7   23.7 22.5
South-East 20.5 21.1   19.2 20.5
South-West 18.1 18.3   18.0 18.1
Level of urbanization Rural 23.5 27.3 *** 22.1 23.6
<  20,000 inhabitants 16.6 17.9   16.2 16.7
20,000 – 99,999 inhabitants 12.3 11.7   13.1 12.3
≥ 100,000 inhabitants 31.2 29.9   32.5 31.1
Paris urban area 16.4 13.2   16.1 16.3
Household monthly income 1st tercile (low) 34.5 27.4 *** 37.9 34.9
2nd tercile 31.1 32.9   29.3 30.2
3rd tercile (high) 31.5 37.8   27.9 30.2
Not specified 2.9 1.9   4.9 4.7
Place of birth Mainland France 84.8 90.6 *** 85.9 87.4
French Overseas administrative areas 0.9 0.9   1.2 1.1
Europe 4.4 2.9   3.6 3.4
Maghreb 5.2 3.0   4.7 4.0
Sub-Saharan Africa 2.1 1.5   3.0 2.7
Other countries 2.6 1.1   1.6 1.4
Health Insurance coverage General Health Insurance 91.6 93.9 *** 90.0 90.0
Health Insurance for low-income personsb 6.0 4.5   7.6 6.6
Otherc 2.4 1.6   2.4 3.4
  1. *** P-value < 0.001 between BaroTest participants and non-participants wHB distributions using Chi-2 test
  2. awHB % Health Barometer weighted percentage, wBT % BaroTest weighted percentage
  3. bIncludes Complementary Universal Health Insurance (CMU, which is free insurance for low-income persons) and State Medical Assistance (AME, which is free insurance for low-income irregular migrants)
  4. cIncludes “No health coverage”, “Yes, but did not know which one” and “Not specified”
  5. The distributions are significantly different for numbers in bold