Table 1.
Census tract measures of population, transportation, and mammography sites in Delaware overall and by county
| Measure | Mean (standard deviation) | ||
|---|---|---|---|
| Delaware | New Castle county | Kent & Sussex counties | |
| N. tracts | 214 | 129 | 85 |
| Population of women ≥ 40 | 250,811 | 140,374 | 110,437 |
| Deprivationa | 0 (1) | 0 (1) | 0 (1) |
| N. women 40–49 | 277 (188) | 284 (193) | 266 (181) |
| N. women 50–74 | 719 (384) | 649 (328) | 824 (437) |
| N. women > 74 | 176 (108) | 155 (102) | 209 (109) |
| Percent Black women | 22 (22) | 26 (25) | 16 (14) |
| Percent w/ vehicles | 93 (9) | 91 (11) | 95 (4) |
| N. bus stops | 11 (10) | 14 (11) | 7 (8) |
| N. mammography sites | 0.1 (0.4) | 0.1 (0.4) | 0.2 (0.5) |
| N. mammography units | 0.2 (0.8) | 0.2 (0.9) | 0.2 (0.7) |
| N. BICOE sites | < 0.1 (0.2) | 0.1 (0.3) | < 0.1 (0.2) |
| N. BICOE units | 0.1 (0.7) | 0.1 (0.8) | 0.1 (0.3) |
BICOE breast imaging center of excellence
aOperationalized as a Z-score composite of census tract indicators for education, employment, income and poverty, and household composition