Table 4.
The number of keratinocytes and the percentage of C3c+ keratinocytes irradiated with UVB
| Keratinocytes irradiated with UVB (mJ/cm2) | |||||
|---|---|---|---|---|---|
| 0 | 30 | 60 | 90 | 120 | |
| Cell number | 162 ± 91 | 207 ± 43* | 142 ± 51** | 122 ± 36* | 117 ± 49* |
| C3c (%) | 0.41 ± 0.79 | 1.74 ± 2.05* | 1.68 ± 2.48* | 2.40 ± 3.51* | 0.51 ± 1.14¶ |
| (n = 109) | (n = 111) | (n = 116) | (n = 100) | (n = 106) | |
The results are expressed as the mean ± SD. *P < 0.001, and **P = 0.012 (linear mixed model analysis) when comparing the cell number in a micrograph or the percentage of C3c+ keratinocytes irradiated with 30, 60, 90, or 120 mJ/cm2 UVB to control cells without irradiation (0 mJ/cm2 UVB). ¶P < 0.001 when comparing the percentage of C3c+ keratinocytes irradiated with 120 mJ/cm2 UVB to those irradiated with 30, 60, or 90 mJ/cm2 UVB. ‘n’ denotes the number of micrographs taken using a 20× objective.