. Author manuscript; available in PMC: 2016 Dec 1.

Published in final edited form as: Pharmacoepidemiol Drug Saf. 2015 Oct 12;24(12):1313–1320. doi: 10.1002/pds.3887

Table 3.

Changes in adherence classification from using raw and adjusted medication event monitoring system (MEMS) data, where ≥95% adherence is “adherent” and <95% adherence is “non-adherent”

Variable	Adherent	Non-Adherent	Test statistic^a	P-value^a
Raw	195	78
Cleaned	190	83	2.78	0.10
Capped	178	95
(Clean-capped)*			17.00	< 0.001

McNemar’s Test tests the null hypothesis that the number of patients classified as adherent and non-adherent using raw data is the same as the number of patient classified as adherent and non-adherent using the cleaned, capped, and clean-capped data

Note: results of capped and cleaned-capped identical