Table 2.

Self-reported, Objective, and Δ Adherence by Self-reported adherence levels

		Self-reported Adherence		Objective Adherence		Δ Adherence a
Self-reported levels	N	M	SD	M	SD	M	SD	p b
< 80%	26	65.0	11.8	59.9	18.3	5.0	22.0	(reference)
80-<85%	21	82.0	1.5	61.3	13.1	20.7	13.0	0.005
85-<90%	27	88.1	1.0	66.1	13.5	21.9	13.2	0.001
90-<95%	70	92.8	1.6	68.7	14.7	24.1	14.9	< 0.001
95-<100%	146	98.1	1.3	76.9	15.2	21.2	14.9	< 0.001
100%	203	100	0	82.7	14.0	17.3	14.0	0.001
Total	493	95.1	8.9	76.0	16.3	19.2	15.3	-

Note: ^aΔ Adherence: The difference between overall self-reported and overall objective adherence;

^bp values for differences in Δ Adherence compared to the < 80% self-report adherence level