Table 3.
The number of cells showing interleukin (IL)-6 receptor immunoreactivity in the upper dermis in Köbner-positive and -negative groups of psoriatic patients
| IL-6R+ cells at different time-points (cells/mm2) | |||||
|---|---|---|---|---|---|
| 0 days | 2 h | 1 day | 3 days | 7 days | |
| Köbner-positive (n = 8) | 11 ± 14 (n = 8) | 10 ± 12 (n = 5) | 27 ± 21 (n = 3) | 45 ± 37* (n = 5) | 52 ± 17* (n = 3) |
| Köbner-negative (n = 10) | 93 ± 169 (n = 10) | 41 ± 65 (n = 4) | 140 ± 125 (n = 6) | 100 ± 60 (n = 3) | 260 ± 222 (n = 6) |
| P-value (unpaired t-test) between Köbner groups | 0·191 | 0·0594 | 0·0374 | ||
The results are expressed as the mean ± standard deviation.
*
P = 0·0115 (paired t-test) when comparing the cell numbers in 3–7-day biopsies to those in corresponding 0-day biopsies.