Short interval (n = 63) | Long interval (n = 63) | |||||
---|---|---|---|---|---|---|
Number or mean (sd)† | (%)† | Number or mean (sd)† | (%)† | SDif† | ||
Age | 54.17 (8.22) | 54.46 (8.63) | 0.034 | |||
Gender | Female | ‡ | ‡ | ‡ | ‡ | 0 |
Male | ‡ | ‡ | ‡ | ‡ | ||
Residency | Non-north | 43 | (68) | 39 | (62) | 0.133 |
North | 20 | (32) | 24 | (38) | ||
Tumor size | ≤ 5 cm | 17 | (27) | 20 | (32) | 0.105 |
> 5 cm | 46 | (73) | 43 | (68) | ||
Tumor differentiation | Poorly/undifferentiated | 14 | (22) | 18 | (29) | 0.146 |
Well/moderately | 49 | (78) | 45 | (71) | ||
RT delivery | Non-IGRT | 51 | (81) | 53 | (84) | 0.084 |
IGRT | 12 | (19) | 10 | (16) | ||
Use of PET | No | 9 | (14) | 8 | (13) | 0.046 |
Yes | 54 | (86) | 55 | (87) | ||
Tumor location | Cervical | ‡ | ‡ | ‡ | ‡ | 0 |
Non-cervical | ‡ | ‡ | ‡ | ‡ | ||
T-stage | T1–T2 | 8 | (13) | 8 | (13) | 0 |
T3–T4 | 55 | (87) | 55 | (87) | ||
N-stage | Negative | 6 | (10) | 6 | (10) | 0 |
Positive | 57 | (90) | 57 | (90) | ||
Drinking | No | 8 | (13) | 8 | (13) | 0 |
Yes | 55 | (87) | 55 | (87) | ||
Betel nut chewing | No | 27 | (43) | 27 | (43) | 0 |
Yes | 36 | (57) | 36 | (57) | ||
Smoking | No | 10 | (16) | 9 | (14) | 0.044 |
Yes | 53 | (84) | 54 | (86) | ||
BMI | 21.84 (3.40) | 22.07 (3.39) | 0.07 | |||
Number of LNs | < 15 | 12 | (19) | 15 | (24) | 0.116 |
≥ 15 | 51 | (81) | 48 | (76) | ||
RT dose (Gy) | 48.30 (3.47) | 47.59 (3.54) | 0.205 | |||
Patient volume | Low volume | 23 | (37) | 20 | (32) | 0.101 |
High volume | 40 | (63) | 43 | (68) | ||
Positive LN | 0.70 (1.29) | 0.75 (1.75) | 0.031 |