Table 5.

Age-adjusted hazard models and 95% confidence intervals (CIs) for the mediating effects of subtype, stage, and socioeconomic status (SES) index on the association between race and breast cancer-specific death among non-Hispanic white (NHW) and non-Hispanic black (NHB) women diagnosed with breast cancer in the metropolitan Atlanta area 2010–2014 and registered with the Georgia Cancer Registry

Mediator	P(M|E)*	Indirect effect†	% mediated
Subtype	0.58	0.11 (0.09 to 0.14)	12 (8.8 to 15.8)
	0.12
	0.05
	0.18
Stage	0.39	0.45 (0.36 to 0.52)	47.3 (38.2 to 57.1)
	0.37
	0.14
	0.094
SES index	0.059	0.09 (0.00 to 0.20)	8.9 (0.0 to 18.1)
	0.13
	0.36
	0.45
Direct effect		0.32 (0.14 to 0.51)	—
Total effect		0.96 (0.7 to 1.14)	68 (53 to 89)

^*Probability of each mediator among NHB women. HR = hazard ratio.

^†Effect on outcome through mediator on log scale.