Table 1.
Baseline patient and tumor chracteristics
| N(%) | |
|---|---|
| Gender | |
| Male | 201 (75) |
| Female | 67 (25) |
| Age in years at primary tumor (median, range) | 74 (33-95) |
| Immunosuppression | |
| No | 240 (90) |
| Yes | 28 (10) |
| Size primary tumor | |
| <2cm | 24 (9) |
| >2cm | 90 (34) |
| Unknown | 154 (58) |
| Site | |
| Head and Neck | 215 (80) |
| Extremity | 43 (16) |
| Trunk | 10 (4) |
| Resection margin primary tumor | |
| R0 | 159 (59) |
| R1 | 55 (21) |
| Unknown | 54 (20) |
| Differentiation grade primary tumor | |
| Well | 25 (9) |
| Moderately | 102 (38) |
| Poor | 63 (24) |
| Unknown | 78 (29) |
| Thickness primary tumor | |
| <6mm | 23 (9) |
| >6mm | 21 (8) |
| Unknown | 224 (84) |
| Perineural invasion primary tumor | |
| No | 61 (23) |
| Yes | 22 (8) |
| Unknown | 185 (69) |
| Recurrent primary tumor | |
| No | 201 (75) |
| Yes | 67 (25) |
Data are expressed as n (%) unless otherwise specified