Variant Group A Group A Group B Group B Group C Group C Group D Group D P-value
Initial smell score median (IQR)
5
0-5
5
0-5
0
0-5
2.5
0-5
0.2
Smell score after 1 week median (IQR)
0
0-1.25
5
0-5
2.5
0-5
5
5-5
<0.001*
Smell score after 2 weeks median (IQR)
5
0-5
5
5-5
5
5-10
10
5-10
<0.001*
Smell score after 3 weeks median (IQR)
5
5-10
5
5-5
10
5-10
10
5-10
<0.001*
Smell score after 4 weeks median (IQR)
10
5-10
10
5-10
10
5-10
10
5-10
0.6