Table 1.
Summary of sample collections: period of sample collection, number of samples collected by age group, type of samples and geographical origin by country.
| Country | Collection time | Number of samples | Type of samples | Geographical origin | ||
|---|---|---|---|---|---|---|
| 40–49 y | 50–59 y | Total | ||||
| Austria (AT) | 2015–2016 | 250 | 250 | 500 | Leftover samples | Vienna, Lower Austria, Carinthia, Salzburg, Burgenland |
| Belgium (BE) | 2017 | 252 | 252 | 504 | Leftover samples | Liège, Charleroi, Brussels, Bruges, Ghent |
| Denmark (DK) | 2015–2016 | 249 | 242 | 491 | Leftover samples (diagnostic laboratories) | Whole country |
| Finland (FI) | 2015–2016 | 250 | 250 | 500 | Leftover samples (patients with suspected coeliac disease) | Varsinais-Suomi, Pohjanmaa |
| France (FR) | 2015–2016 | 299 | 298 | 597 | Leftover samples | Institut Pasteur, Paris |
| Greece (GR) | 2015 | 250 | 250 | 501 | Leftover samples | Attikon University General Hospital, Athens |
| Hungary (HU) | 2017 | 260 | 273 | 533 | Leftover samples (health care workers) | Békés, Budapest, Csongrád, Hajdú, Szabolcs |
| Ireland (IE) | 2016–2017 | 250 | 249 | 499 | Leftover samples (patients) | Whole country |
| Latvia (LV) | 2015–2016 | 250 | 250 | 500 | Leftover samples | Riga |
| Lithuania (LT) | 2016 | 250 | 250 | 500 | Leftover samples (people admitted to outpatient clinics) | Kaunas |
| Netherlands (NL) | 2016–2017 | 830 | 814 | 1644 | Population-based seroprevalence study | 48 municipalities of the Netherlands |
| Norway (NO) | 2015–2016 | 251 | 251 | 502 | Leftover samples (Immunol. and Clin. Biochemistry Dept.) | Akershus |
| Portugal (PT) | 2015–2016 | 250 | 250 | 500 | Population-based seroprevalence study | Alentejo, Algarve, Centro, Lisboa, Norte, Açores, Madeira |
| Romania (RO) | 2018 | 252 | 252 | 504 | Leftover samples (emergency hospital laboratories) | 41 counties of Romania+Bucuresti Municipality |
| Slovak Republic (SK) | 2016–2018 | 250 | 250 | 500 | Leftover samples (patients inspected for borreliosis) | Banská Bystrica |
| Slovenia (SI) | 2015–2016 | 263 | 261 | 524 | Leftover samples (diagnostic borreliosis and measles) | Kranj, Maribor, Nova Gorica, Ljubljana |
| Sweden (SE) | 2016 | 253 | 251 | 504 | Leftover samples (clinical chemistry labs) | Halland, Jämtland/Härjedalen, Jönköping, Kalmar, Skåne, Stockholm, Västerbotten, Västra, Götaland, Örebro, Östergötland |
| United Kingdom (UK) | 2015–2016 | 250 | 249 | 499 | Leftover samples (genitourinary medicine) | Manchester, Exeter, Newcastle, Leicester, Leeds, London, Cambridge |
The participating countries are listed in alphabetical order of the complete name and not according to the abbreviation.