Figure 2
From: Risk and prognosis of secondary esophagus cancer after radiotherapy for breast cancer
Subgroup analyses of competing risk regression for the risk of developing secondary esophageal cancer. BC breast cancer; RT radiation therapy; UO upper outer quadrant of breast; UI upper inner quadrant of breast; LI lower inner quadrant of breast; LO lower outer quadrant of breast; CEN central portion quadrant of breast. The other sites of BC include axillary tail of breast, overlapping lesion of breast. sHR subdistribution hazard ratio.
