Table 1 Summary statistics for subject characteristics, N = 2713. For categorical variables, the percentages of subjects in each category are presented. For continuous variables, five-number summaries are presented.
Surgery | Aboriginality | Marital Status | |||
|---|---|---|---|---|---|
Mastectomy | 39.0% | No | 99.2% | Married/De-facto | 70.8% |
Breast-Conserving Surgery | 61.0% | Yes | 0.8% | Otherwise | 29.2% |
Method of Payment | Country of Birth | Area of Residence | |||
Public, eligible for Medicare | 49.4% | Australia | 61.1% | Metropolitan | 78.8% |
Private, not insured | 3.3% | Western Europe | 28.2% | Rural | 15.6% |
Private, insured | 45.8 % | Other | 10.8% | Remote | 5.6% |
Ineligible for assistance | 1.5% | ||||
Tumor Histology | Tumor Size (diameter in mm) | Patient Age (years) | |||
Ductal | 79.7% | Minimum | 1 mm | Minimum | 19 yrs |
Lobular | 12.1% | 1st Quartile | 12 mm | 1st Quartile | 47 yrs |
Other (mixed/tubular/etc.) | 8.1% | Median | 18 mm | Median | 56 yrs |
3rd Quartile | 25 mm | 3rd Quartile | 65 yrs | ||
Maximum | 100 mm | Maximum | 95 yrs | ||
Nodal Staging Characteristics | Tumor Size Categories (T1/2/3) | Patient Age Categories | |||
Node negative (N-) | 58.8% | T1 (20 mm or less) | 63.3% | Age under 40 | 8.2% |
Node positive (N+) 1 to 3 nodes | 26.9% | T2 (20 to 50 mm) | 33.3% | Age 40 to 60 | 51.8% |
Node positive (N+) 4 plus nodes | 14.3% | T3 (exceeding 50 mm) | 3.5% | Age 60 or over | 40.0% |