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Table 3 Percentage of poor compliers and Cohen's kappa coefficients according to different cut-off points

From: All that glisters is not gold: a comparison of electronic monitoring versus filled prescriptions – an observational study

Cut-off points

 

80%

85%

90%

95%

% Poor compliance

Taking compliance

3.4

3.4

4.8

14.4

 

Refill compliance

11.6

18.5

23.3

32.2

Cohen's kappa coefficient

 

-0.056

0.005

0.020

0.009