Changing Trends of Breast Cancer Survival in Sultanate of Oman

Table 3

Overall survival in all patients (𝑁=122) and relapse-free survival for patients in the nonmetastatic group (𝑁=100). Univariate analysis performed using Cox proportional hazard’s model.

Variable	Overall Survival		Relapse-Free Survival
	Risk ratio	𝑃-value	Risk ratio	𝑃-value
Skin involvement at presentation
Negative	1		1
Positive	3.3 (1.5–7.5)	.003	3.0 (1.4–6.4)	.003
Pathological T-size
T1 + T2	1		1
T3 + T4	2.6 (1.1–6.1)	.023	1.9 (0.9–3.9)	.09
Stage
I and II	1		1
III /IV	5.4 (1.8–15.8)	.004	3.7 (1.6–8.6)	.003
Lymph nodes involved
Negative	—	—	1
Positive	—	—	2.9 (1.3–7.1)	.013