Table 2.
Clinical features of the cohort
| Variables | All | Longitudinal vessels | Perpendicular vessels | |||
|---|---|---|---|---|---|---|
| n | % | n | % | n | % | |
| All | 707 | 100.0 | 283 | 40.0 | 424 | 60.0 |
| Gender | ||||||
| Male | 556 | 78.6 | 184 | 26.0 | 372 | 52.6 |
| Female | 151 | 21.4 | 99 | 14.0 | 52 | 7.4 |
| Previous treatments° | ||||||
| No | 478 | 67.6 | 221 | 31.3 | 257 | 36.4 |
| Previous surgery | 174 | 24.6 | 45 | 6.4 | 129 | 18.2 |
| Previous RT | 17 | 2.4 | 4 | 0.6 | 13 | 1.8 |
| Previous biopsy | 54 | 7.6 | 8 | 1.1 | 46 | 6.5 |
| Histology | ||||||
| Benign | 208 | 29.4 | 184 | 26.0 | 24 | 3.4 |
| Papillomatosis without atypia | 34 | 4.8 | 0 | 0.0 | 34 | 4.8 |
| SIN1 | 46 | 6.5 | 24 | 3.4 | 22 | 3.1 |
| SIN2 | 61 | 8.6 | 26 | 3.7 | 35 | 5.0 |
| SIN3/CIS | 93 | 13.2 | 15 | 2.1 | 78 | 11.0 |
| SCC | 265 | 37.5 | 26 | 3.7 | 239 | 33.8 |
The sum of rows is 723 since 16 patients had two different previous treatments
RT radiotherapy, SIN squamous intraepithelial neoplasia, CIS in situ carcinoma, SCC squamous cell carcinoma