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Table 5 Characteristics of the study cohort: history of breast disease

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

Variable n = 89434(%)
Ever been told to have breast cancer  
 Yes 115 (0.13)
 No 89319 (99.87)
Ever noted lumps in breasts  
 Yes 5139 (5.75)
 No 84295 (94.25)
Ever noted pain in breasts  
 Yes 14951 (16.72)
 No 74483 (83.28)
 Ever noted discharge from breasts  
 Yes 1881 (2.10)
 No 87553 (97.90)
Families with breast cancer score (mean±SD) 14.77(±21.22)
Ever have/had other types of breast disease  
 Yes 14363 (16.06)
 No 75071 (83.94)
Abnormality in left breast found by nurse  
 Yes 14769 (16.51)
 No 74665 (83.49)
Abnormality in right breast found by nurse  
 Yes 13748 (15.37)
 No 75686 (84.63)
Female relatives with breast cancer  
 Yes 31574 (35.30)
 No 57860 (64.70)