Table 4.
Subgroup analysis of age, sex and social economic status for SLNB by prognosis (n = 3284).
| Variables | Survival (n = 1068) |
Death (n = 2216) |
p Valuea |
|---|---|---|---|
| Age | |||
| < 50 years (%) | 0.105 | ||
| Non-SLNB | 180 (48.6) | 190 (51.4) | |
| SLNB | 119 (55.6) | 95 (44.4) | |
| 50–59 years (%) | 0.012 | ||
| Non-SLNB | 121 (39.8) | 183 (60.2) | |
| SLNB | 98 (51.3) | 93 (48.7) | |
| 60–69 years (%) | 0.043 | ||
| Non-SLNB | 145 (31.5) | 315 (68.5) | |
| SLNB | 83 (39.5) | 127 (60.5) | |
| 70–79 years (%) | 0.001 | ||
| Non-SLNB | 146 (21.5) | 533 (78.5) | |
| SLNB | 72 (32.1) | 152 (67.9) | |
| ≥ 80 years (%) | < 0.001 | ||
| Non-SLNB | 75 (13.9) | 463 (86.1) | |
| SLNB | 29 (30.9) | 65 (69.1) | |
| Sex | |||
| Female (%) | < 0.001 | ||
| Non-SLNB | 341 (32.0) | 725 (68.0) | |
| SLNB | 224 (52.5) | 203 (47.5) | |
| Male (%) | < 0.001 | ||
| Non-SLNB | 326 (25.4) | 959 (74.6) | |
| SLNB | 177 (35.0) | 329 (65.0) | |
| Social economic statusbc | |||
| Non-income (%) | < 0.001 | ||
| Non-SLNB | 48 (16.8) | 238 (83.2) | |
| SLNB | 32 (36.8) | 55 (63.2) | |
| Low (%) | 0.001 | ||
| Non-SLNB | 140 (25.7) | 405 (74.3) | |
| SLNB | 65 (39.2) | 101 (60.8) | |
| Middle (%) | < 0.001 | ||
| Non-SLNB | 270 (25.3) | 796 (74.7) | |
| SLNB | 162 (38.7) | 257 (61.3) | |
| High (%) | 0.175 | ||
| Non-SLNB | 197 (47.9) | 214 (52.1) | |
| SLNB | 136 (53.3) | 119 (46.7) | |
aUsing Chi-square test. Bold type indicates statistical significantly (P < 0.05).
bSocial economic status was classified as non-income (no income), low (income ranges from 1 to 583 US$ per month), middle (income ranges from 584 to 833 US$ per month) and high (income ≥ 834 US$ per month) categories.
c49 patients were unknown.