Table 1.
Comparison of socio-demographic characteristics and risk factors between self-reported breast cancer cases and controls (N=714)
| Characteristic or Risk Factor | Controls (N=595) |
Cases (N=119) |
p-value |
|---|---|---|---|
| N (%) | N (%) | ||
| Age at enrollment | 1.00 | ||
| 30–39 years | 75 (12.6) | 15 (12.6) | |
| 40–49 years | 140 (23.5) | 28 (23.5) | |
| 50–59 years | 170 (28.6) | 34 (28.6) | |
| 60 years or older | 210 (35.3) | 42 (35.3) | |
| Mean (SD) | 54.3 (12.9) | 54.9 (12.1) | 0.652 |
| Age at diagnosis, Mean (SD) | -- | 50.5 (12.1) | |
| Range | |||
| Marital status | 0.003 | ||
| Married/living as married | 431 (72.4) | 70 (58.8) | |
| Not married | 164 (27.6) | 49 (41.2) | |
| Educational attainment | 0.032 | ||
| Less than high school | 416 (69.9) | 72 (60.5) | |
| High school graduate | 69 (11.6) | 24 (20.2) | |
| More than high school | 110 (18.5) | 23 (19.3) | |
| Health insurance status | 0.002 | ||
| None | 346 (58.2) | 51 (42.9) | |
| Yes | 249 (41.8) | 68 (57.1) | |
| Nativity & acculturation level | < 0.001 | ||
| Mexico & low acculturation | 388 (65.2) | 60 (50.4) | |
| Mexico & high acculturation | 30 (5.0) | 15 (12.6) | |
| US & low acculturation | 44 (7.4) | 5 (4.2) | |
| US & high acculturation | 133 (22.4) | 39 (32.8) | |
| Family history of breast cancer | < 0.001 | ||
| No | 574 (96.5) | 101 (84.9) | |
| Yes | 21 (3.5) | 18 (15.1) | |
| Parity status | 0.609 | ||
| No live births | 23 (3.9) | 6 (5.0) | |
| At least one live birth | 571 (96.1) | 113 (95.0) | |
| Smoking status | 0.498 | ||
| Never | 462 (77.7) | 89 (74.8) | |
| Ever | 133 (22.3) | 30 (25.2) | |
| Alcohol status | 0.081 | ||
| Never | 473 (79.5) | 86 (72.3) | |
| Ever | 122 (20.5) | 33 (27.7) | |
| Sedentary lifestyle | 0.791 | ||
| No | 78 (13.1) | 16 (13.5) | |
| Yes | 517 (86.9) | 103 (86.5) | |
| BMI | 0.615 | ||
| Obese | 310 (52.1) | 65 (54.6) | |
| Not | 285 (47.9) | 54 (45.4) |