second-level longitudinal analysis

Hi there,

I'm running a longitudinal ROI-ROI analysis to examine change in connectivity while co-varying out age. For my second-level analysis, I entered the matrix [-1 1 0]. The beta value is 0.16 and I'm not sure if this is high enough to be reported.

In addition, if I just look at one group, what would a beta value of 0.1 represent? 

Thanks in advance! 

-J