Table 3

Hazards ratios from Cox regression models with 95% confidence interval and corresponding P values, of breast cancer survival comparing post-program group with pre-program group

Univariable

Multivariable

Category

HR 95% CI

P value

HR* 95% CI

P value

Pre-program

1.00

ref

1.00

Ref

Post-program

0.83

0.77 to 0.88

<0.001

0.86

0.78 to 0.95

0.003

Age-categorized (years)

0 to 39

1.00

ref

40 to 49

0.60

0.53 to 0.67

<0.001

50 to 69

0.73

0.66 to 0.81

<0.001

≥ 70

0.98

0.89 to 1.08

0.75

Surgery performed^#

0.17

0.16 to 0.19

<0.001

Chemotherapy given^#

0.97

0.96 to 0.98

<0.001

Hormone therapy given^#

1.03

1.01 to 1.04

<0.001

Radiation given^#

1.00

0.99 to 1.02

0.63

*Adjusted for county of residence and calendar year of diagnosis.

^# Reference categories: surgery not performed; chemotherapy not given; hormone therapy not given; radiation not given, respectively.

CI = confidence interval; HR = hazard ratio.

Kalager et al. Breast Cancer Research 2009 11:R44   doi:10.1186/bcr2331