Exploring the Role of Breast Density on Cancer Prognosis among Women Attending Population-Based Screening Programmes

Table 4

Unadjusted and adjusted hazard ratios for death.

	Number of deaths	Unadjusted HR	Adjusted HR
Breast density
<25%	20	Ref.	Ref.
25–50%	24	2.48 (1.37–4.49)	2.19 (1.16–4.13)
>50%	15	1.89 (0.97–3.7)	1.44 (0.67–3.10)

The final model included breast density, mode of detection, lymph node involvement, age, Charlson comorbidity index, and screening programme. HR: hazard ratio; aHR: adjusted hazard ratio.