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

Table 5

Unadjusted and adjusted hazard ratios for recurrences.

	Number of recurrences	Unadjusted HR	Adjusted HR
Breast density
≤25%	19	Ref.	Ref.
25–50%	16	1.72 (0.89–3.35)	1.43 (0.71–2.89)
≥50%	17	2.34 (1.21–4.5)	1.47 (0.71–3.08)

Adjusted by breast density, progesterone receptor, lymph node involvement, age, Charlson comorbidity index, and screening programme. HR: hazard ratio; aHR: adjusted hazard ratio.