| Table 3: Pre-NBSS breast cancer screening history of the case and control subjects* |
| Screening procedure |
Group; no. (and %) of subjects |
OR (and 95% CI) |
p value |
|
Case |
Control |
|
Mammographic examination |
| No |
160 (73) |
1559 (71) |
1.00 RV |
|
| Yes |
60 (27) |
639 (29) |
0.91 (0.67–1.25) |
0.57 |
|
No. of mammographic examinations |
| 0 |
160 (73) |
1559 (71) |
1.00 RV |
|
| 1–2 |
43 (20) |
550 (25) |
0.77 (0.54–1.09) |
0.14 |
| >= 3 |
15 (7) |
72 (4) |
2.06 (1.13–3.77) |
0.02 |
|
Breast self-examination |
| No |
121 (56) |
1091 (50) |
1.27 (0.96–1.68) |
0.10 |
| Yes |
97 (44) |
1095 (50) |
1.00 RV |
|
|
Frequency per yr |
| 0 |
121 (58) |
1091 (51) |
1.38 (0.93–2.05) |
0.11 |
| 1–11 |
53 (25) |
616 (29) |
1.09 (0.69–1.71) |
0.71 |
| >= 12 |
34 (16) |
421 (20) |
1.00 RV |
|
|
*Missing responses were excluded. |
