Table 3

Concordance in 5-year breast cancer-specific prognosis (good, medium, or poor) among 2,787 mother-daughter pairs^a

Age of mother at diagnosis (years)

Concordance in poor prognosis

Overall concordance in prognosis

Events

Proportion

Events

Proportion

<40

12/13

0.92

37/43

0.86

40–49

60/66

0.91

166/264

0.62

50–59

129/147

0.88

337/522

0.64

60–69

211/251

0.84

502/819

0.61

70+

324/442

0.73

613/1,139

0.53

All ages

736/919

0.80

1,656/2,787

0.59

Test for trend

p < 0.001

p < 0.001

^aConcordance in 5-year breast cancer-specific prognosis (good, medium, or poor) by age at diagnosis in mother among mother-daughter pairs as defined by Cox proportional hazards models.

Hartman et al. Breast Cancer Research 2007 9:R39   doi:10.1186/bcr1737