Table 5 Post-hoc analysis of pectoral muscle volume ratio.

From: Changes in Pectoral Muscle Volume During Subacute Period after Radiation Therapy for Breast Cancer: A Retrospective up to 4-year Follow-up Study

Test group

Difference of Mean

Standard Error

p value

p value (adjusted by Bonferroni)

Just before RT - Immediately after RT

0.01864

0.01356

0.184

>0.999

Immediately after RT - 2 month after RT

0.14868

0.02273

<0.001*

<0.001*

2 month after RT - 6 month after RT

āˆ’0.13218

0.02447

<0.001*

<0.001*

6 month after RT - 2 years after RT

āˆ’0.14027

0.0201

<0.001*

<0.001*

2 years after RT - 3~4 years after RT

āˆ’0.00755

0.02032

0.714

>0.999

  1. RT radiotherapy to the trunk, CT computed tomograph.
  2. *pā€‰<ā€‰0.05.
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