Main outcome—difference in percentage of adequate choice of PPE (%), median [Q1;Q3]
|
17 [− 17;42]
|
33 [0;58]
|
.087
|
Adequate choice before (%), median [Q1;Q3]
|
25 [25;50]
|
25 [25;50]
|
.730
|
Adequate choice after (%), median [Q1;Q3]
|
50 [33;83]
|
67 [50;83]
|
.052
|
Main outcome by study year (%), median [Q1;Q3]
|
1
|
25 [8;50]
|
33 [− 25;58]
|
.876
|
2
|
8 [− 25;33]
|
29 [− 4;42]
|
.161
|
3
|
17 [− 25;33]
|
42 [8;58]
|
.051
|
Main outcome by school (%), median [Q1;Q3]
|
Bern (MEDI)
|
25 [− 25;42]
|
58 [25;67]
|
.004
|
Geneva (ESAMB)
|
13 [− 4;38]
|
0 [− 25;33]
|
.358
|
Lausanne (ES-ASUR)
|
29 [− 17;42]
|
42 [8;42]
|
.473
|
Main outcome by history of COVID (%), median [Q1;Q3]
|
Never had COVID
|
21 [− 13;42]
|
33 [0;58]
|
.105
|
Had COVID
|
− 25 [− 25;− 25]
|
25 [25;25]
|
.317
|
Main outcome by working status (%), median [Q1;Q3]
|
Actively works in an ambulance service
|
25 [− 17;42]
|
42 [8;58]
|
.021
|
Not working in an ambulance service
|
17 [− 8;50]
|
0 [− 25;33]
|
.584
|