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Scientific Concept of the National Cohort (status ... - Nationale Kohorte

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A.3 Study design<br />

A.3.1 Population sampling and recruitment<br />

55<br />

A.3 Study design<br />

The <strong>National</strong> <strong>Cohort</strong> will represent a population-based cohort <strong>of</strong> men and women aged 20<br />

to 69 years, who will be recruited by invitation <strong>of</strong> a random sample <strong>of</strong> inhabitants <strong>of</strong> defined<br />

geographical areas in Germany. In total, approximately 200,000 cohort participants will be<br />

recruited.<br />

A.3.1.1 Study regions and study population<br />

Study regions<br />

In June 2009, a call was launched for statements <strong>of</strong> interest in participating in assembling<br />

<strong>the</strong> <strong>National</strong> <strong>Cohort</strong>. This call was broadly distributed to national scientific epidemiologic<br />

organizations, medical faculties, governing bodies <strong>of</strong> universities, and interested scientists.<br />

Prerequisites for participating in recruitment included practical experience in conducting<br />

Figure 3.1<br />

population-based, prospective cohort studies, experience in using standardized assess-<br />

figure 3.1: Recruitment clusters and study centers <strong>of</strong> <strong>the</strong> <strong>National</strong> <strong>Cohort</strong><br />

Lower Saxony/<br />

Hamburg/Bremen<br />

North Rhine-<br />

Westphalia<br />

Baden-Wuerttemberg/<br />

Saarland<br />

SC Hamburg<br />

SC Bremen<br />

SC Muenster<br />

SC Essen SC Halle<br />

SC Duesseldorf<br />

SC Heidelberg/<br />

Mannheim<br />

SC Saarbruecken<br />

SC Freiburg<br />

Schleswig-Holstein<br />

SC Kiel<br />

SC Brunswick/Hanover<br />

SC Regensburg<br />

SC Augsburg<br />

SC Leipzig<br />

Mecklenburg-<br />

Western Pomerania<br />

SC Neubrandenburg<br />

Berlin-Brandenburg<br />

SC Berlin-North<br />

SC Berlin-Center<br />

SC Berlin-South/Brandenburg<br />

Saxony/Saxony-Anhalt<br />

Bavaria<br />

Study center (SC)<br />

Recruitment area<br />

A.3

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