Table 1.
Group | Lesion Severity Grade | Average Severity Grade | |||
---|---|---|---|---|---|
1 | 2 | 3 | 4 | ||
male control | 4 | 1 | |||
female control | 4 | 1 | |||
male nano-Al2O3 | 3 | 1 | 2.25 ± 0.50 * | ||
female nano-Al2O3 | 2 | 2 | 2.5 ± 0.58 * |
* p < 0.05, compared with the corresponding sex control, n = 4.