Table 3.
Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for the association between perceived breast cancer risk (numerical scale) and screening behaviors for female relatives from the Ontario site of the Breast Cancer Family Registry.
| Numerical-scale perceived risk [N (%)] | Adjusted* OR (95% CI) | ||||
|---|---|---|---|---|---|
| Screening Behaviors | < 50% N = 230 |
= 50% N = 251 |
> 50% N = 511 |
= 50% vs. < 50% | >50% vs. < 50% |
| Reason and time since last mammogram | |||||
| Never had or non-screening mammogram | 68 (30.2) | 66 (26.9) | 175 (34.9) | 1.00 | 1.00 |
| Screening mammogram > 12 months ago | 51 (22.7) | 66 (26.9) | 115 (22.9) | 2.41 (1.29 – 4.49) † | 1.94 (1.08 – 3.49) † |
| Screening mammogram ≤ 12 months ago | 106 (47.1) | 113 (46.2) | 212 (42.2) | 2.09 (1.15 – 3.79) † | 1.91 (1.15 – 3.16) † |
| Reason and time since last CBE | |||||
| Never had or non-screening CBE | 23 (10.4) | 17 (7.0) | 52 (10.4) | 1.00 | 1.00 |
| Screening CBE > 12 months ago | 67 (30.3) | 81 (33.3) | 171 (34.0) | 1.97 (0.88 – 4.44) | 1.42 (0.74 – 2.24) |
| Screening CBE ≤ 12 months ago | 131 (59.3) | 145 (59.7) | 279 (55.6) | 1.79 (0.82 – 3. 92) | 1.15 (0.62 – 2.13) |
| Time since last mammogram and/or CBE ‡ | |||||
| Screening mammogram or CBE >12 months ago | 29 (13.9) | 33 (14.1) | 82 (17.4) | 1.00 | 1.00 |
| Screening mammogram and CBE >12 months ago | 33 (15.8) | 43 (18.4) | 70 (14.9) | 1.44 (0.63 – 3.28) | 1.04 (0.50 – 2.22) |
| Screening mammogram or CBE ≤12 months ago | 57 (27.3) | 58 (24.8) | 147 (31.2) | 0.98 (0.47 – 2.05) | 0.96 (0.52 – 1.78) |
| Screening mammogram and CBE ≤12 months ago | 90 (43.0) | 100 (42.7) | 172 (36.5) | 1.20 (0.57 – 2.53) | 0.95 (0.50 – 1.79) |
| Breast self-examination frequency | |||||
| Once a year or less | 36 (15.9) | 38 (15.2) | 77 (15.1) | 1.00 | 1.00 |
| Every 2 to 6 months | 117 (51.5) | 92 (36.8) | 233 (45.9) | 0.68 (0.37 – 1.25) | 0.82 (0.49 – 1.38) |
| Once a month or more | 74 (32.6) | 120 (48.0) | 198 (39.0) | 1.46 (0.77 – 2.75) | 1.16 (0.66 – 2.05) |
| Ever had a genetic test | |||||
| Never had genetic testing | 183 (85.9) | 194 (82.6) | 416 (87.6) | 1.00 | 1.00 |
| Had genetic testing | 30 (14.1) | 41 (17.4) | 59 (12.4) | 1.29 (0.74 – 2.27) | 0.83 (0.50 – 1.39) |
*
All models were adjusted for age, education, history of benign breast disease, body mass index, frequency of visiting a health care facility and familial breast cancer risk and were corrected for familial clustering.
†
P < 0.05
‡
Excluded women who never had a mammogram or CBE or had either or both for non-screening purposes (N = 61)
CBE Clinical breast examination