Table 1 displays the baseline characteristics of patients who
completed questionnaires at both T0 and T1. Of the 1447
respondents, 47% were female, 38% had a low educational level,
and 29% were single. Mean age was 65.48 9.96 (range, 20–98)
years.
We compared baseline characteristics of the 1447 participants
who completed both questionnaires to those who completed T0
only. No difference in physical quality of life, smoking, gender,
educational level, or marital status was found. On average,
respondents who completed both questionnaires were older