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Table 1
Cardiac mortality in radiation trials before 1973 and after 1993
	Cardiac deaths^a	Hazard ratio (95% confidence interval)

Diagnosed before 1973
Follow up <5 years	230/180	1.19 (0.98 to 1.45)
Follow up >5 years	189/145	1.21 (0.97 to 1.50)
Diagnosed after 1993
Follow up < 5 years	230/180	0.95 (0.79 to 1.14)
Follow up > 5 years	189/145	0.99 (0.73 to 1.50)

^aLeft-sided radiation versus right-sided radiation.
Ragaz Breast Cancer Research 2009 11(Suppl 3):S14 doi:10.1186/bcr2433

Table 1