Table 3. Cardiac mortality rate and subsequent ratios by esophageal cancer location, and time from diagnosis to cardiac death.

Time (months)	Middle thoracic				Lower thoracic
	No RT	RT	HR		No RT	RT	HR
12	0.033	0.073	2.212		0.026	0.048	1.846
24	0.089	0.149	1.674		0.051	0.090	1.765
36	0.132	0.132	1.402		0.074	0.122	1.649
60	0.155	0.262	1.690		0.074	0.122	1.649
120	0.232	0.412	1.776		0.163	0.237	1.454
240	0.425	0.621	1.461		0.356	0.411	1.154