Table 1.
Descriptive Characteristics of ACOSOG Z4031 patients with FDG-PET Scans (n=682)
| Characteristic | Cancer N=566 |
Benign N=116 |
p-valuea |
|---|---|---|---|
| Male (%) | 253 (45) | 54 (47) | 0.71 |
| Caucasian (%) | 517 (91) | 113 (97) | 0.03 |
| Mean Age (Range) | 67 (31–90) | 61 (36–89) | <0.001 |
| Lesion Size mm (Range) | 26 (0.61) | 20 (0.95) | <0.001 |
| FDG-PET Avidb (%) | 465 (82) | 80 (69) | 0.002 |
a
Continuous variable statistics use t-test (Age and Lesion Size) and binomial proportions test for differences in proportions (Gender, Race and FDG-PET Avidity).
b
The categories of avidity and their corresponding SUV are: not avid if the report contained not avid/not cancerous, low avidity/not likely cancerous or SUV < 2.5 when reported) and avid if the report contained avid/likely cancerous, highly avid/cancerous or SUV ≥ 2.5.