Table 1: Mann-Whitney U-test results for the DN4 and S-LANSS total scores per COVID status.
|
|
Group |
N |
Mean rank |
Sum of rank |
Mann-Whitney U |
Z |
Sig |
|
DN4 |
Post-COVID |
89 |
103.22 |
9187.00 |
1938.000 |
-5.221 |
0.000 |
|
Control |
80 |
64.72 |
5178.00 |
|
|
|
|
|
Total |
169 |
|
|
|
|
|
|
|
S-LANSS |
Post-COVID |
89 |
103.19 |
9183.50 |
1941.500 |
-5.180 |
0.000 |
|
Control |
80 |
64.77 |
5181.50 |
|
|
|
|
|
Total |
169 |
|
|
|
|
|
A Mann-Whitney test indicated that the both S-LANSS and DN4 total scores was greater for post-COVID group (Mdn = 2) than for control group (Mdn = 5). The U values for S-LANSS and DN4 were 1941.500 and 1938.0 respectively. Both p values < 0.001.