Table 1.
Distribution of sociodemographic and breast cancer risk factors
| Characteristic | Total Sample (n=500) | |
|---|---|---|
| Sociodemographic factors | N | % |
| Ethnicity | ||
| White | 228 | 45.6 |
| Mestizo | 229 | 45.8 |
| Indigenous | 43 | 8.6 |
| Educational Attainment, years completed | ||
| No schooling | 43 | 8.6 |
| 1–7 | 287 | 57.4 |
| 8 | 58 | 11.6 |
| 9–11 | 64 | 12.8 |
| ≥12 | 48 | 9.6 |
| Marital Status | ||
| Single | 77 | 15.4 |
| Married | 254 | 50.8 |
| Living with partner | 33 | 6.6 |
| Separated/Divorced | 63 | 12.6 |
| Widowed | 73 | 14.6 |
| Occupation | ||
| Homemaker/Informal Job | 367 | 73.4 |
| Housemaid/House Assistant | 46 | 9.2 |
| Merchant | 38 | 7.6 |
| Student/Other | 49 | 9.8 |
| Monthly Household Family Income, US dollars | ||
| <206.4 | 281 | 56.2 |
| ≥206.4 | 219 | 43.8 |
| Mean [95% CI] | ||
| Knowledge Score | 2.2 [2.1, 2.3] | |
| BCRAT risk factors | ||
| Age, years | 57.1 [56.7, 57.6] | |
| Age at Menarche, years | N | % |
| < 12 | 64 | 12.8 |
| 12–13 | 232 | 46.4 |
| ≥ 14 | 202 | 40.4 |
| Age at First Birth, years | ||
| < 20 | 234 | 46.8 |
| 20–24 | 171 | 34.2 |
| 25–29/Nulliparous | 80 | 16.0 |
| ≥ 30 | 15 | 3.0 |
| Number of 1st Degree Relatives with Breast Cancer | ||
| 0 | 463 | 92.6 |
| 1 | 33 | 6.6 |
| ≥ 2 | 4 | 0.8 |
| Number of Breast Biopsies | ||
| 0 | 490 | 98.0 |
| 1 | 9 | 1.8 |
| ≥ 2 | 1 | 0.2 |
| Mean [95% CI] | ||
| BCRAT five-year risk of breast cancer | 0.82 [0.78, 0.86] | |
| BCRAT Lifetime risk of breast cancer | 5.08 [4.87, 5.28] | |
Notes: 95% CI=95% Confidence Interval, BCRAT=Breast Cancer Risk Assessment Tool. All estimates are based on participants who have a valid (non-missing) response to each variable.