Table 2. Association of iNOS with TNBC outcomes.

	Univariate Cox Regression Analysis
	HR	95% Confidence Interval	P-value
iNOS Levels & Disease Free Survival*
Negative	1.0			27
Low	3.5	1.04-11.53	0.042	79
Moderate	4.4	1.31-14.74	0.017	59
High	3.0	0.82-10.75	0.095	34
iNOS Levels & Metastasis Free Survival*
Negative	1.0			27
Low	8.0	1.06-59.75	0.043	79
Moderate	12.1	1.61-90.06	0.015	59
High	6.5	0.80-51.89	0.080	34
iNOS Levels & Breast Cancer Specific Survival
Negative	1.0			28
Low	5.2	1.21-22.15	0.026	78
Moderate	6.0	1.38-25.70	0.017	59
High	3.5	0.74-16.55	0.112	35
	Multivariable Cox Regression Analysis**
	HR	95% Confidence Interval	P-value	N
iNOS Levels & Disease Free Survival
Negative	1.0			27
Low	3.5	1.04-11.51	0.044	79
Moderate	4.6	1.35-15.79	0.015	59
High	2.8	0.75-10.12	0.127	33
iNOS Levels & Metastasis Free Survival
Negative	1.0			27
Low	7.9	1.05-59.49	0.044	79
Moderate	12.7	1.67-95.91	0.014	59
High	6.1	0.75-49.76	0.091	34
iNOS Levels & Breast Cancer Specific Survival
Negative	1.0			28
Low	5.3	1.24-22.90	0.024	78
Moderate	6.2	1.43-27.13	0.026	59
High	3.2	0.67-15.15	0.142	34

*Adjusted for age at diagnosis, no chemotherapy/neoadjuvant/adjuvant chemotherapy/unknown, tumor grade, histological subtype.