Table 1.
Characteristics of eligible participants by enrollment and consent in the ENGAGED 2 study in Kaiser Permanente Washington women members, 2017-2018
| Non-Participant | Participant | |||
|---|---|---|---|---|
| Characteristic | No. | (%) | No. | (%) |
| Number of women (row%) | 1,574 (61.3) | 995 (38.7) | ||
| Age at baseline | ||||
| 40-49 | 47 | 3.0 | 19 | 1.9 |
| 50-59 | 532 | 33.8 | 280 | 28.1 |
| 60-69 | 994 | 63.2 | 696 | 70.0 |
| Mean age (SD) | 60.8 (5.5) | 61.9 (5.1) | ||
| Race/ethnicity | ||||
| White, non-Hispanic | 1,385 | 88.0 | 943 | 94.8 |
| Asian/Pacific Islander | 96 | 6.1 | 14 | 1.4 |
| Black, non-Hispanic | 56 | 3.6 | 19 | 1.9 |
| Hispanic | 33 | 2.1 | 16 | 1.6 |
| Mixed or other | 4 | 0.3 | 3 | 0.3 |
| Education | ||||
| HS/GED or less | 147 | 9.3 | 38 | 3.8 |
| Some college | 443 | 28.1 | 218 | 21.9 |
| College graduate | 919 | 58.4 | 722 | 72.6 |
| Missing | 65 | 4.1 | 17 | 1.7 |
| BCSCa risk level | ||||
| 1.67-2.49 | 502 | 31.9 | 250 | 25.1 |
| > 2.50 | 1,072 | 68.1 | 745 | 74.9 |
| First degree family history of breast cancer | ||||
| No | 763 | 48.5 | 480 | 48.2 |
| Yes | 657 | 41.7 | 447 | 44.9 |
| Unknown | 154 | 9.8 | 68 | 6.8 |
| Prior breast biopsy | ||||
| No | 783 | 49.8 | 486 | 48.8 |
| Yes | 699 | 44.4 | 452 | 45.4 |
| Unknown | 92 | 5.8 | 57 | 5.7 |
| Median family income | ||||
| < $70,000 | 366 | 23.3 | 221 | 22.2 |
| $70,000-$89,999 | 334 | 21.2 | 227 | 22.8 |
| $90,000-$109,999 | 332 | 21.1 | 239 | 24.0 |
| $110,000-$129,999 | 216 | 13.7 | 128 | 12.9 |
| > $130,000 | 233 | 14.8 | 130 | 13.1 |
| Unknown | 93 | 5.9 | 50 | 5.0 |
| Menopausal status | ||||
| Postmenopause | 165 | 10.5 | 75 | 7.5 |
| Premenopause | 1,409 | 89.5 | 920 | 92.5 |
| Breast density | ||||
| Heterogeneously dense | 737 | 46.8 | 554 | 55.7 |
| Dense | 837 | 53.2 | 441 | 44.3 |
a Five-year BCSC risk based on https://tools.bcsc-scc.org/BC5yearRisk/intro.htm.
HS/GED = high school/General Education Development certificate,