Table 2.
Travel time to screening breast imaging exams recorded in the Breast Cancer Surveillance Consortium from 2005-2012 (N=825,370).
| Mammography (N=821,683) | MRI (N=3,687) | |||
|---|---|---|---|---|
|
| ||||
| Closest Travel Time | Actual Travel Time | Closest Travel Time | Actual Travel Time | |
|
|
||||
| Median time; IQR (min.) | Median time; IQR (min.) | |||
| All exams | 6 (3,13) | 10 (5,20) | 5 (2,13) | 14 (6,32) |
| Age (years) | ||||
| <40 | 6 (3,13) | 11 (6,23) | 5 (2,21.5) | 17 (5,55) |
| 40-49 | 7 (3,15) | 11 (6,24) | 6 (3,23) | 18 (7,66) |
| 50-59 | 7 (3,16) | 12 (6,24) | 6 (3,21) | 17 (8,52) |
| 60-69 | 7 (3,16) | 11 (6,23) | 7 (3,21) | 17 (7.5,49) |
| 70-79 | 6 (3,14) | 10 (5,20) | 7 (4,14) | 13 (7,45) |
| 80+ | 5 (2,11) | 8 (4,15) | 5.5 (3,15.25) | 7 (5,18.25) |
| Race | ||||
| Non-hispanic white | 8 (4,17) | 12 (6,24) | 7 (3,22) | 18 (7,55) |
| Non-hispanic black | 6 (3,14) | 11 (6,26) | 7.5 (3,17) | 23.5 (11.25,57) |
| Hispanic | 4 (2,6) | 9 (5,15) | 4 (3,8) | 12 (6,28.5) |
| Non-hispanic Asian | 5 (2,12) | 9 (5,21) | 5 (2,19) | 13 (7,41) |
| Non-hispanic Other | 6 (3,17) | 11 (5,25) | 7 (2,24.5) | 17 (8,68) |
| Education | ||||
| < HS grad | 5 (2,16) | 9 (4,22) | 5 (3,24) | 12 (5,41) |
| HS grad or GED | 8 (4,19) | 12 (5,25) | 13 (5,26) | 28 (12,65) |
| Some College | 7 (3,17) | 11 (5,25) | 7 (4,24) | 20 (9,57) |
| College grad/post grad | 6 (3,16) | 11 (5,23) | 6 (2,20) | 16 (6,50) |
| Rural/Urban by Zip Code | ||||
| Large Rural town | 9 (4,16) | 13 (5,25) | 12 (5,17) | 27 (7,57.25) |
| Small town/Isolated rural | 17 (7,28) | 22 (9,36) | 25 (13,33) | 53 (37,89) |
| Suburban | 19 (12,26) | 24 (16,33) | 19 (13,26.25) | 28 (22,41) |
| Urban Core | 5 (2,9) | 9 (5,15) | 5 (2,10) | 11 (6,25) |
| BCSC 5 year risk score | ||||
| High Risk (>1.67) | 8 (4,16) | 11 (6,23) | 7 (3,22) | 18 (7.5,52) |
| Average Risk (<1.67) | 7 (3,15) | 11 (6,23) | 6 (2,22) | 16 (6,49) |
| Breast screening history | ||||
| Screened in past 30 months | 7 (3,16) | 11 (6,24) | 6 (3,21) | 17 (7,51) |
| Not screened in past 30 months | 6 (3,14) | 10 (5,21) | 7 (2,24) | 18 (8,67) |
| Family history | ||||
| Positve | 7 (3,16) | 11 (6,23) | 6 (3,21) | 16 (6,49) |
| Negative | 7 (3,15) | 11 (6,23) | 6 (3,22) | 17 (8,57) |
| Breast density | ||||
| Almost entirely fatty | 7 (3,16) | 11 (5,23) | 10 (4,22) | 22 (9,42) |
| Scattered fibroglandular | 8 (4,16) | 11 (6,24) | 8 (3,23) | 20 (8,57) |
| Heterogeneously dense | 8 (4,16) | 12 (6,23) | 7 (3,21) | 17 (7,53.75) |
| Extremely dense | 7 (3,15) | 11 (6,23) | 6 (2,26) | 18 (6,70.5) |
| History of breast procedure | ||||
| None | 6 (3,15) | 11 (5,22) | 6 (2,21.75) | 16.5 (6,47) |
| Biopsy only | 7 (4,16) | 11 (6,23) | 6 (3,22.5) | 17 (7,63.5) |
| Aspiration only | 6 (3,14) | 11 (6,23) | 5 (4,11) | 18.5 (8.25,31) |
| Both biopsy and aspiration | 9 (4,20) | 12 (6,26) | 8 (3.5,22) | 18 (8,48) |