TABLE 3.
False Positives |
True Negatives |
|||
---|---|---|---|---|
Procedure(s) Received | N (col. %) | Median$/Person (q25, q75) | N (col. %) | Median$/Person (q25, q75) |
None | 28 (1.3) | 0 (0, 0) | 17,725 (94.1) | 0 (0, 0) |
Breast imaging only | 1824 (87.3) | 338 (169, 420) | 824 (4.4) | 210 (185, 379) |
Surgery consult with/without imaging | 37 (1.8) | 628 (510, 898) | 83 (0.4) | 374 (177, 459) |
Fine needle aspiration with/without imaging or surgical consult | 12 (0.6) | 642 (434, 781) | 51 (0.3) | 518 (210, 583) |
Breast biopsy with/without imaging, surgical consult, or fine needle aspiration | 185 (8.9) | 2192 (1600, 2500) | 160 (0.8) | 762 (458, 1330) |
Mastectomy with/without other procedures | 3 (0.1) | 6226 (5711, 12,641) | 1 (<0.1) | 2471 (2471, 2471) |
Total | 2089 (100) | 338* (169, 554) | 18,844 (100) | 0 (0, 0) |
P < 0.01 from Wilcoxon rank-sum test of null hypothesis that overall costs for false positives and true negatives are drawn from the same distribution.
q25 indicates 25th percentile; q75, 75th percentile.