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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