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Patient and treatment characteristics
| No. (%) | |
|---|---|
| Age (y) | |
| Mean ± SD | 48 ± 8 |
| T-stage | |
| T1 | 63(75) |
| T2 | 21(25) |
| N-stage | |
| N0 | 73(87) |
| N1 | 11(13) |
| Histology | |
| SCC | 80(95) |
| Others | 4(5) |
| Smoking | |
| None | 79(94) |
| Yes | 5(6) |
| Diabetes | |
| None | 77(92) |
| Yes | 7(8) |
| BMI (kg/m2) | |
| Mean | 25 |
| SD | ±4 |
| Body position | |
| Prone | 78(93) |
| Supine | 6(7) |
| RT total dose (Gy) | |
| Mean | 51 |
| SD | ±3 |
| Concurrent chemotherapy | |
| None | 43(51) |
| Yes | 41(49) |
Abbreviations: SCC = squamous cell carcinoma; BMI = body mass index; RT = radiation therapy; SD = standard deviation.
