|Table 2: Estimates of the effect of mastectomy relative to breast conserving surgery with radiation on 7-year survival by estimator and sample subsets1.|
1All models also specified all measured covariates listed in the variable definition section and are more fully described in Keating et al. . |
2Average treatment effect on the treated (ATT). In this case, average effect of mastectomy on 7-year survival for those patients choosing mastectomy.
3Local average treatment effect (LATE). The average effect of mastectomy on 7-year survival for those patients whose mastectomy choice would have changed with local area mastectomy practice style.
4ESBC patients with low-risk tumors (stage ), little comorbid illness, and age ≤ 70.