Table 1.
Baseline characteristics of the unmatched and matched groups
| Characteristics | Before Matching (N=926) | After Matching (N=859) | |||||
|---|---|---|---|---|---|---|---|
| Weekly (N=227) | Triweekly (N=699) | P¶ | Weekly (N=225) | Triweekly(N=634) | P¶ | ||
| Age, years | 45.1 (15-72) | 45.3 (18-74) | 0.838& | 45.2 (15-72) | 45.0 (18-74) | 0.830& | |
| Sex | |||||||
| Male | 171 (75.3%) | 519 (25.8%) | 0.745 | 170 (75.6%) | 475 (74.9%) | 0.850 | |
| Female | 56 (24.7%) | 180 (74.2%) | 55 (24.4%) | 159 (25.1%) | |||
| KPS | |||||||
| 90-100 | 222 (97.8%) | 690 (98.7%) | 0.349 | 222 (98.7%) | 630 (99.4%) | 0.386 | |
| 70-80 | 5 (2.2%) | 9 (1.3%) | 3 (1.3%) | 4 (0.6%) | |||
| T classification | |||||||
| T1 | 7 (3.1%) | 15 (2.1%) | 0.336 | 7 (3.1%) | 15 (2.3%) | 0.802 | |
| T2 | 27 (11.9%) | 72 (10.3%) | 26 (11.6%) | 62 (9.8%) | |||
| T3 | 163 (71.8%) | 487 (69. 7%) | 162 (72.0%) | 469 (74.0%) | |||
| T4 | 30 (13.2%) | 125 (17.9%) | 30 (13.3%) | 88 (13.9%) | |||
| N classification | |||||||
| N0 | 22 (9.7%) | 68 (9.7%) | 0.320 | 22 (9.8%) | 61 (9.6%) | 0.494 | |
| N1 | 103 (45.4%) | 342 (48.9%) | 103 (45.8%) | 320 (40.5%) | |||
| N2 | 91 (40.1%) | 239 (34.2%) | 90 (40.0%) | 219 (34.5%) | |||
| N3 | 11 (4.8%) | 50 (7.2%) | 10 (4.4%) | 34 (5.4%) | |||
| Clinical stage | |||||||
| III | 188 (82.8%) | 533 (76.3%) | 0.038 | 187 (82.7%) | 519 (81.9%) | 0.674 | |
| IV | 39 (17.2%) | 166 (23.7%) | 38 (17.3%) | 115 (18.1%) | |||
Data represent the median (range) and n (%), unless otherwise indicated. ¶ χ2 test or Fisher's exact test. & Mann-Whitney U-test.
Abbreviations: KPS, Karnofsky performance score.