Table 3.
Percentage of patients undergoing SLNB in different age, sex, SES categories (n = 3284).
| Variables | Sentinel lymph node biopsy | p Valuea | |
|---|---|---|---|
| No (n = 2351) |
Yes (n = 933) |
||
| Age, years (%) | < 0.001 | ||
| < 50 | 370 (63.4) | 214 (36.6) | |
| 50–59 | 304 (61.4) | 191 (38.6) | |
| 60–69 | 460 (68.7) | 210 (31.3) | |
| 70–79 | 679 (75.2) | 224 (24.8) | |
| ≥ 80 | 538 (85.1) | 94 (14.9) | |
| Sex (%) | 0.826 | ||
| Female | 1066 (71.4) | 427 (28.6) | |
| Male | 285 (71.7) | 506 (28.3) | |
| Social economic status (%)bc | < 0.001 | ||
| Non-income | 286 (76.7) | 87 (23.3) | |
| Low | 545 (76.7) | 166 (23.3) | |
| Middle | 1066 (71.8) | 419 (28.2) | |
| High | 411 (61.7) | 255 (38.3) | |
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 ot 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.