Figure 3.

Scatter plot comparing the age distribution at the time of completing the questionnaire (we have set 1 January 2024 as the cut-off date for the cohort that did not complete the questionnaire) between the cohort that completed the questionnaire and the cohort that did not. A Mann–Whitney U-test shows that the mean rank is 77.49 for the group that completed the questionnaire and 71.57 for the cohort that did not complete the questionnaire. The test statistic yielded a U-value of 1768.0 and a Z-value of 216.23, resulting in a p-value of 0.468.