A total of 1039 patients were asked to participate, and
701 agreed. The percentage of patients who did not fill out
the questionnaire (decliners) was 32.5%. The most important
reason for noninclusion was refusal to participate (n=210),
followed by language problems (n=54) and cognitive or
physical limitations (n=22). No reason for noninclusion was
reported for 52 of the patients. According to the patients, the
average amount of time they needed to fill out the questionnaire
was 49 ± 33 minutes. Table 1 provides information on
the patients in the study