2.3. Subject Selection and Withdrawal
abdominal overweight
The study population consisting of female and male individuals with abdominal overweight were recruited from the CRC database with the announcement of the study sent by mail, and with advertisements in the local daily newspaper and flyers that were on display, e.g., at family doctors’ waiting rooms.They contacted the study site by phone or email and were asked if they were interested in further information. During telephone contact, subjects received summarized information about the planned trial. In case the individual was interested in participation, he/she was provided with the written subject information by e-mail or regular mail. After the subjects had read the subject information, they contacted the study site to clarify any further questions and/or schedule a screening visit.