Table 1.
Associated between clinical factors with severe ROM analyzed by univariate analysis
| Variable | ROM (n = 115) | Severe ROM (n = 60) | χ2 | P value | |
|---|---|---|---|---|---|
| No. (%) | No. (%) | ||||
| Sex | Male | 87 (75.7) | 46 (76.7) | 0.022 | 0.881 |
| Female | 28 (24.3) | 14 (23.3) | |||
| Age (year) | ≤ 52 | 63 (54.8) | 27 (45) | 1.511 | 0.219 |
| > 52 | 52 (45.2) | 33 (55) | |||
| BMI (kg/m2) | < 22.8 | 58 (50.4) | 28 (46.7) | 0.224 | 0.636 |
| ≥ 22.8 | 57 (49.6) | 32 (53.3) | |||
| T category | T1-T2 | 12 (10.4) | 7 (11.7) | 0.062 | 0.804 |
| T3-T4 | 103 (89.6) | 53 (88.3) | |||
| N category | N0-N1 | 67 (58.3) | 38 (63.3) | 0.423 | 0.516 |
| N2-N3 | 48 (41.7) | 22 (36.7) | |||
| Clinical stage | I-III | 60 (52.2) | 29 (48.3) | 0.233 | 0.630 |
| IV | 55 (47.8) | 31 (51.7) | |||
| IC | Yes | 84 (73) | 39 (65) | 1.221 | 0.269 |
| No | 31 (27) | 21 (35) | |||
| CCRT | Yes | 98 (85.2) | 48 (80) | 0.776 | 0.378 |
| No | 17 (14.8) | 12 (20) | |||
| Target therapy | Yes | 89 (77.4) | 48 (80) | 0.158 | 0.691 |
| No | 26 (22.6) | 12 (20) | |||
| Immunotherapy | Yes | 15 (13) | 7 (11.7) | 0.068 | 0.794 |
| No | 100 (87) | 53 (88.3) | |||
| Smoking | Yes | 40 (34.8) | 22 (36.7) | 0.061 | 0.805 |
| No | 75 (65.2) | 38 (63.3) | |||
| Drinking | Yes | 26 (22.6) | 16 (26.7) | 0.365 | 0.551 |
| No | 89 (77.4) | 44 (73.3) | |||
ROM: radiation-induced oral mucositis; BMI: body mass index; IC: induction chemotherapy; CCRT: concurrent chemoradiotherapy.