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Table 3 Impact of differing time-frames on correlations between methods

From: Adherence evaluation of endocrine treatment in breast cancer: methodological aspects

Prescription refill

Physician rating

Plasma concentration

Self-report

 

r

p

r

p

r

p

Prescription refill – previous month

0.090

0.349

−0.071

0.470

0.112

0.276

Prescription refill – 3months

0.105

0.226

0.050

0.573

0.115

0.218

Prescription refill – 4months

0.194

0.021*

0.175

0.040*

0.167

0.069

Prescription refill – 6months

0.243

0.006*

0.251

0.005*

0.189

0.050#

  1. *indicates significant correlation: p<0.05, # indicates significant correlation: p=0.050.