Table 2.
Comparison of flow cytometry statistics between recovered and PCC individuals
| Variables | Recovered (n = 85) | PCC (n = 85) | p value |
|---|---|---|---|
| CD56+CD16+ cells among NK + NKT, % | 63.20 (25.30) | 73.45 (28.72) | 0.038 |
| CD56+CD16− cells among NK + NKT, % | 35.70 (27.00) | 23.30 (26.50) | 0.032 |
| CD56−CD16bright among CD56− cells, % | 2.21 (2.22) | 1.60 (1.17) | <0.001 |
| Naive CD8+ cells among CD8+ cells, % | 22.10 (20.73) | 29.40 (25.93) | 0.023 |
| Effector CD8+ among CD8+ cells, % | 16.60 (14.80) | 13.15 (12.18) | 0.015 |
| CD8+CD4low cells among T lymphocytes % | 0.37 (0.39) | 0.50 (0.44) | 0.013 |
Subsets of cells in human peripheral blood based on the relative expression of either CD16 and CD56 or CD8 and either CD45RA or CD62L. Frequencies (in %) among CD3−CD56+ NK cells, CD56− lymphocytes cells, and CD3+CD8+ cells are indicated for each patient group. Recovered: individuals who completely recovered within 3 months after acute COVID-19; PCC: individuals diagnosed with post-COVID-19 condition; values are presented as median (interquartile range). Statistical differences were calculated using Mann-Whitney’s U-test.