Table 2 Clinicopathological characteristics of breast cancer patients.
From: A profile of prognostic and molecular factors in European and Māori breast cancer patients
Measure | European (n = 310) | Māori (n = 27) | Ethnic difference (95% CI) | Statistical test1 | Test value | df | p |
|---|---|---|---|---|---|---|---|
Age (years) | mean 61.1 (sd 14.4) | mean 57.7 (sd 13.3) | 3.4 years (-2.2, 9.1) | t test | 1.19 | 335 | 0.63 |
Ductal | 74.2% (230) | 66. 7% (18) | % ductal | ductal vs rest χ2 | 0.72 | 1 | 0.39 |
Lobular | 14.8% (46) | 22.2% (6) | 7.5% | ||||
Other | 11.0% (34) | 11.1% (3) | (-10.9, 26.0) | ||||
Unknown | 0 | 0 | |||||
Tumour size (mm) | mean 21.5 (sd 13.2) | mean 23.6 (sd 14.4) | -2.1 mm (-7.3, 3.2) | t test | -0.78 | 332 | 0.43 |
unknown | 3 | 0 | |||||
Grade: 1 | 13.0% (40) | 18.5% (5) | % Grade 3 vs 1 or 2 | Wald χ2 | 4.77 | 1 | 0.027* |
2 | 43.7% (134) | 63.0% (17) | 24.8% | ||||
3 | 43.3% (133) | 18.5% (5) | (9.1, 40.5) | ||||
unknown | 3 | 0 | |||||
Node: N0 | 52.8% (160) | 40.0% (10) | Any +ve | Wald χ2 | 1.73 | 1 | 0.19 |
N1-3 | 31.0% (94) | 36.0% (9) | -12.8% | ||||
N > 3 | 16.2% (49) | 24.0% (6) | (-32.8, 7.2) | ||||
unknown | 7 | 2 | |||||
NPI | mean 4.4 (sd 1.3) | mean 4.3 (sd 1.4) | 0.05 (-0.5, 0.6) | t test | 0.18 | 326 | 0.85 |
unknown | 7 | 2 | |||||
ER: -ve | 19.7% (60) | 11.5% (3) | % Strong | Wald χ2 | 2.78 | 1 | 0.095 |
weak +ve | 10.8% (33) | 0% (0) | -19.0% | ||||
strong +ve | 69.5% (212) | 88.5% (23) | (-32.3, -5.6) | ||||
unknown | 5 | 1 | |||||
PR: -ve | 31.0% (94) | 23.1% (6) | % Strong | Wald χ2 | 1.65 | 1 | 0.20 |
weak +ve | 36.0% (109) | 30.8% (8) | -13.2% | ||||
strong +ve | 33.0% (100) | 46.1% (12) | (-33.0, 6.7) | ||||
unknown | 7 | 1 | |||||
Her2: +ve | 15.0% (25) | 12.5% (2) | % +ve | χ2 | 0.07 | 1 | 0.79 |
-ve | 85.0% (142) | 87.5% (14) | 2.5 | ||||
unknown | 143 | 11 | (-14.6, 19.6) |