Table 2 Characteristics of Ki-67-tested patients with 1–3 positive lymph nodes by Ki-67 expression status
Characteristic | Tested for Ki-67 (N = 61) | Ki-67 Status expression status | |
|---|---|---|---|
Ki-67 ≥ 20% (N = 33) | Ki-67 < 20% (N = 28) | ||
Mean age [SD], years | 61.8 [12.1] | 60.9 [12.6] | 62.8 [11.6] |
Race/Ethnicitya, n (% with characteristic) | |||
Black or African American | 3 (4.9) | 1 (3.0) | 2 (7.1) |
Hispanic or Latino | 1 (1.6) | 0 (0.0) | 1 (3.6) |
White or Caucasian | 44 (72.1) | 26 (78.8) | 18 (64.3) |
Other | 3 (4.9) | 1 (3.0) | 2 (7.1) |
Unknown/Unspecified | 15 (24.6) | 8 (24.2) | 7 (25) |
Menopausal status, n (% with characteristic) | |||
Postmenopause | 47 (77.0) | 26 (78.8) | 21 (74.9) |
Premenopause | 14 (23.0) | 7 (21.2) | 7 (25) |
Stage of diseaseb, n (% with characteristic) | |||
Stage I | 11 (18.0) | 5 (8.2) | 6 (9.8) |
Stage II | 45 (73.8) | 24 (72.7) | 21 (74.9) |
Stage III | 5 (8.2) | 4 (12.1) | 1 (3.6) |
Tumor sizeb, n (% with characteristic) | |||
0–2 cm | 43 (70.5) | 24 (72.7) | 19 (67.9) |
> 2 to < 5 cm | 15 (24.6) | 8 (24.2) | 7 (25) |
≥ 5 cm | 1 (1.6) | 0 (0.0) | 1 (3.6) |
Missing | 2 (3.3) | 1 (3.3) | 1 (3.6) |
Number of positive nodesb, n (% with characteristic) | |||
1 | 32 (52.5) | 14 (42.4) | 18 (64.3) |
2 | 24 (39.3) | 15 (45.5) | 9 (32.1) |
3 | 5 (8.2) | 4 (12.1) | 1 (3.6) |
Tumor Gradeb, n (% with characteristic) | |||
Grade 1 | 21 (34.4) | 6 (18.2) | 15 (53.6) |
Grade 2 | 32 (52.5) | 19 (57.6) | 13 (46.4) |
Grade 3 | 8 (13.1) | 8 (24.2) | 0 (0.0) |