Fig 1.
Prognostic survey results by age group.
The number of replies, the number of unanswered replies, and the number of unknown recipients by year are shown in the bar graphs.
Fig 2.
Reply rate and unaddressed rate by age group.
Line graph showing the relationship between the percentage of replies and the percentage of unknown recipients by year and age.
Table 1.
Patient background by reply status.
Table 2.
Factors affecting replies.