Table 3.
Demographic and clinical characteristics of nasopharyngeal carcinoma patients before and after treatment
| Covariate | Pretreatment (n = 465) (n, %) | Posttreatment (n = 245) (n, %) |
|---|---|---|
| Age (y) | ||
| ≤45 | 189 (40.6) | 109 (44.5) |
| >45 | 276 (59.4) | 136 (55.5) |
| Sex | ||
| Male | 324 (69.7) | 172 (70.2) |
| Female | 141 (30.3) | 73 (29.8) |
| Pathology | ||
| Keratinizing squamous cell | 2 (0.4) | 2 (0.8) |
| Nonkeratinizing, differentiated | 45 (9.7) | 22 (9.0) |
| Nonkeratinizing, undifferentiated | 418 (89.9) | 221 (90.2) |
| T category | ||
| T1 | 120 (25.8) | 70 (28.6) |
| T2 | 86 (18.5) | 46 (18.8) |
| T3 | 158 (40.0) | 83 (33.9) |
| T4 | 91 (19.7) | 46 (18.8) |
| N category | ||
| N0 | 37 (8.00) | 22 (9.00) |
| N1 | 226 (48.6) | 117 (47.8) |
| N2 | 138 (29.7) | 73 (29.8) |
| N3 | 64 (13.7) | 33 (13.5) |
| Clinical stage | ||
| I | 12 (2.6) | 7 (2.9) |
| II | 126 (27.1) | 68 (27.8) |
| III | 182 (39.1) | 95 (38.8) |
| IVa | 145 (31.2) | 75 (30.6) |
| Chemotherapy (cycles) | ||
| ≤3 | 155 (33.3) | 70 (28.6) |
| >3 | 310 (66.7) | 175 (71.4) |
| Follow‐up time (mo) | ||
| Median (range) | 55 (2‐83) | 55 (2‐82) |