Table 2 Demographics and diagnosis
From: CO2 laser versus cold steel margin analysis following endoscopic excision of glottic cancer
| Variable | Laser | Steel | Total | p-value |
|---|---|---|---|---|
| Age | 0.548 | |||
| Mean | 65.2 | 67.4 | 66.3 | |
| Range | - | - | 34-87 | |
| SD | 11.5 | 12.7 | 12.0 | |
| Gender | 1.0 | |||
| Male | 20 | 19 | 39 | |
| Female | 3 | 3 | 6 | |
| Diagnosis | 0.463 | |||
| a) Premalignant | ||||
| Moderate dysplasia | 0 | 2 | 2 | |
| Severe dysplasia/CIS | 6 | 3 | 9 | |
| b) Invasive SCC | ||||
| Well differentiated | 2 | 2 | 4 | |
| Moderately differentiated | 12 | 14 | 26 | |
| Poorly differentiated | 3 | 1 | 4 |