Levels of adherence to BCRL self-care modalities did not predict a 5 % or greater decrease in interlimb volume ( Ptrend = 0.79 ) , 5 % or greater decrease in the sum of interlimb arm circumferences ( Ptrend = 0.47 ) , 10 % or greater decrease in bioimpedence spectroscopy ( Ptrend = 0.83 ) , 1 or greater decrease in self-reported lymphedema symptoms ( Ptrend = 0.91 ) , or therapist-defined lymphedema exacerbation requiring treatment ( Ptrend = 0.84 ) .