Table 3.

Average patient percent relative reduction in dose parameters with DIBH compared to FB for left-sided breast cancer patients by treatment cohort. Significant p-values after adjusting for multiple testing are indicated by a double asterisk (**)

Parameter	WBRT	B/CWRT + RNI	p-value*
Dmean Heart	29.2 %	55.9 %	0.003**
Dmean LAD	43.5 %	72.1 %	0.014**
V20 Left Lung	8.9 %	6.6 %	0.305

Wilcoxon sum-rank test used in for comparison of all variables*In this group, to achieve significance p-values must be < 0.0167 to account for multiple testing. **Indicates significance when compared to the Bonferroni adjusted criterion