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Table 9 Comparing the predictors of breast cancer incidence, all-cause mortality, cancer-specific mortality and non-cancer mortality

From: Predictors of competing mortality to invasive breast cancer incidence in the Canadian National Breast Screening study

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