TABLE 3.
Odds ratio (OR) estimates and 95% Confidence Intervals (CI) by characteristic
| Characteristic | OR | CT Scan‡ 95% CI |
OR | PET Scan¶ 95% CI |
OR | Brain MRI† 95% CI |
OR | Bone Scan 95% CI |
|---|---|---|---|---|---|---|---|---|
| Gender | ||||||||
| Female * | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Male | 1.61 | 1.28–2.02 | 0.78 | 0.32–1.88 | 0.94 | 0.35–2.53 | 1.23 | 1.00–1.51 |
| Age | ||||||||
| 65–69 yrs* | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| 70–74 yrs | 1.00 | 0.93–1.08 | 1.14 | 0.92–1.40 | 1.08 | 0.83–1.40 | 1.01 | 0.95–1.07 |
| 75–79 yrs | 1.04 | 0.97–1.12 | 1.01 | 0.82–1.26 | 1.39 | 1.08–1.80 | 0.94 | 0.88–1.00 |
| 80–84 yrs | 1.00 | 0.92–1.09 | 0.94 | 0.73–1.21 | 1.12 | 0.83–1.51 | 0.78 | 0.73–0.84 |
| 85+ yrs | 0.89 | 0.80–1.00 | 0.88 | 0.62–1.23 | 1.20 | 0.82–1.76 | 0.63 | 0.57–0.70 |
| Race | ||||||||
| White | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Black | 1.28 | 1.16–1.42 | 1.28 | 0.97–1.69 | 1.35 | 0.96–1.90 | 1.15 | 1.05–1.25 |
| Asian | 1.46 | 1.25–1.72 | 0.76 | 0.42–1.39 | 0.68 | 0.32–1.43 | 1.19 | 1.03–1.37 |
| Other/Unknown¥ | 1.19 | 1.03–1.38 | 0.65 | 0.38–1.11 | 1.37 | 0.86–2.17 | 1.13 | 1.00–1.28 |
| Urban/Rural Setting§ | ||||||||
| Rural * | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Less Urban | 1.07 | 0.84–1.37 | 1.21 | 0.42–3.50 | 0.92 | 0.38–2.24 | 1.17 | 0.92–1.48 |
| Urban | 1.02 | 0.80–1.32 | 1.65 | 0.57–4.75 | 0.83 | 0.33–2.08 | 1.75 | 1.38–2.22 |
| Metro | 1.13 | 0.89–1.42 | 2.01 | 0.74–5.44 | 1.12 | 0.49–2.55 | 1.71 | 1.37–2.14 |
| Big Metro | 1.26 | 1.01–1.59 | 3.07 | 1.14–8.23 | 1.39 | 0.62–3.14 | 2.10 | 1.68–2.62 |
| Stage | ||||||||
| Stage I * | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Stage II | 1.34 | 1.27–1.42 | 1.48 | 1.27–1.73 | 1.08 | 0.90–1.30 | 1.45 | 1.38–1.52 |
| Grade | ||||||||
| Well Differentiated * | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Mod. Differentiated | 1.07 | 1.00–1.15 | 1.09 | 0.87–1.36 | 1.00 | 0.79–1.27 | 1.13 | 1.06–1.20 |
| Poorly Differentiated | 1.12 | 1.03–1.22 | 1.56 | 1.23–1.98 | 0.83 | 0.62–1.10 | 1.31 | 1.22–1.40 |
| Undifferentiated; anaplastic | 0.97 | 0.78–1.21 | 1.35 | 0.74–2.47 | 0.97 | 0.47–2.02 | 0.97 | 0.80–1.18 |
| Unknown | 1.05 | 0.95–1.16 | 1.01 | 0.74–1.38 | 0.85 | 0.61–1.20 | 1.36 | 1.25–1.48 |
| Receptor Status | ||||||||
| Either Positive* | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Both Negative | 1.05 | 0.97–1.14 | 1.03 | 0.82–1.28 | 1.08 | 0.81–1.44 | 1.02 | 0.95–1.10 |
| Unknown | 1.04 | 0.97–1.12 | 0.74 | 0.57–0.94 | 0.95 | 0.73–1.24 | 1.09 | 1.02–1.15 |
| Histology | ||||||||
| Ductal * | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Lobular | 1.07 | 0.98–1.17 | 1.17 | 0.93–1.49 | 1.39 | 1.07–1.82 | 1.11 | 1.03–1.20 |
| Other/Unknown | 1.18 | 1.02–1.36 | 1.37 | 0.93–2.03 | 0.64 | 0.33–1.25 | 1.08 | 0.95–1.23 |
| Breast MRI† | ||||||||
| No * | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Yes | 2.42 | 2.12–2.76 | 5.71 | 4.52–7.22 | 1.74 | 1.15–2.63 | 1.63 | 1.44–1.86 |
| Mammogram | ||||||||
| No * | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Yes | 1.45 | 1.37–1.54 | 1.07 | 0.90–1.28 | 1.78 | 1.44–2.19 | 1.30 | 1.24–1.36 |
| Ultrasound | ||||||||
| No * | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Yes | 1.30 | 1.23–1.38 | 1.64 | 1.37–1.96 | 1.71 | 1.39–2.09 | 0.88 | 0.84–0.93 |
*
Indicates referent values;
‡
CT= Computerized Tomography;
¶
PET= Positron Emission Tomography;
†
MRI= Magnetic Resonance Imaging
¥
Includes Hispanic patients as defined by Medicare
§
Population sizes: rural <2,500; less urban 2,500–19,999; urban 20,000–249,999; metropolitan 250,000–1,000,000; big metropolitan ≥1,000,000