Table 9.
Comparing the predictors of breast cancer incidence, all-cause mortality, cancer-specific mortality and non-cancer mortality
| Variable | Breast cancer incidence | All-cause mortality | Cancer mortality | Non-cancer mortality |
|---|---|---|---|---|
| Age at entry |
+ |
+ |
+ |
+ |
| Interaction of age at entry and time to event |
+ |
- |
- |
- |
| Ethnic origin (Foreign) |
- |
- |
- |
+ |
| Length of estrogen/progesterone used (months) |
- |
+ |
+ |
+ |
| Menstruation length (years) |
+ |
+ |
+ |
- |
| Had a hysterectomy |
- |
+ |
- |
+ |
| Had a bi-lateral oophorectomy |
- |
- |
+ |
- |
| Number of live births |
+ |
+ |
+ |
- |
| Interaction of nulliparous level and time to event |
+ |
- |
- |
- |
| Breast Self examination (BSE) practise |
- |
+ |
+ |
- |
| Cigarettes smoked per day |
- |
+ |
+ |
+ |
| Ever noted lumps in breasts |
+ |
+ |
- |
+ |
| Interaction of lumps and time to event |
+ |
- |
- |
- |
| Ever noted discharge from breasts |
- |
+ |
- |
+ |
| Ever have/had other types of breast disease |
+ |
- |
- |
- |
| Abnormality in left breast found by nurse |
+ |
- |
- |
- |
| Age at first child birth |
- |
+ |
+ |
- |
| Number of pregnancies |
- |
- |
+ |
- |
| Families with breast cancer score |
+ |
- |
- |
- |
|
+ indicates the factor is significant |
|
|
|
|
| - indicates the factor is not significant |