Table 3.
Number of filled-in questionnaires per participant by city, age groups, employment status, and mode through which participants found out about the survey.
| Characteristics | Mean (SE) | Kruskal-Wallis test value (post hoc test: Dunn test) | P value | |||
| City |
|
|
478.95 | <.001a | ||
|
|
Antwerp |
|
10.5 (0.32)b |
|
|
|
|
|
Barcelona | 8.2 (0.25)c |
|
|
||
|
|
London |
|
5.3 (0.20)d |
|
|
|
|
|
Örebro |
|
4.8 (0.17)d |
|
|
|
|
|
Rome |
|
7.4 (0.23)e |
|
|
|
|
|
Vienna |
|
10.0 (0.32)f |
|
|
|
|
|
Zurich |
|
11.0 (0.33)b |
|
|
|
| Age (years), n (%) |
|
91.679 | <.001a | |||
|
|
<20 |
|
3.14 (0.39)b |
|
|
|
|
|
20-29 |
|
6.85 (0.20)c |
|
|
|
|
|
30-39 |
|
8.13 (0.19)d |
|
|
|
|
|
40-49 |
|
8.80 (0.23)d,e |
|
|
|
|
|
50-59 |
|
9.11 (0.26)d,e |
|
|
|
|
|
≥60 |
|
8.33 (0.34)d |
|
|
|
| Employment status |
|
90.077 | <.001a | |||
|
|
Full-time | 8.9 (0.1)b |
|
|
||
|
|
Part-time | 9.2 (0.3)b |
|
|
||
|
|
Student |
|
6.7 (0.3)d |
|
|
|
|
|
Home duties, retired, or unemployed | 8.2 (0.4)c |
|
|||
| Found out about survey through | 137.1 | <.001 | ||||
|
|
Work |
|
8.5 (0.2)b |
|
|
|
|
|
Word of mouth | 7.9 (0.3)c |
|
|
||
|
|
Other organizations | 9.6 (0.3)b |
|
|
||
|
|
Outreach activities | 6.9 (0.2)d |
|
|
||
|
|
News |
|
9.5 (0.4)b |
|
|
|
|
|
Social media | 8.6 (0.3)b |
|
|
||
|
|
Public notice | 5.5 (0.6)e |
|
|
||
|
|
Random sampling | 7.1 (0.5)b,c |
|
|
||
|
|
Other |
|
6.2 (0.2)c,d |
|
|
|
aSignificant effect.
b,c,d,e,fValues with different letters differ significantly from each other (eg, mean values marked with “b” differ significantly from each mean value marked with “c,” “d,” “e,” or “f”).