Table 3.

Poisson random coefficients model: incident rate ratios for intervention group, observation period, and the group by time interaction for the level of non-adherence

Variables: models 1 and 2	Percent not takena			Percent not taken on timea
	IRR	95 % CI	p	IRR	95 % CI	p
Observation period (12 weeks reference)	.990	(.974, 1.005)	.195	1.000	(.989, 1.011)	.967
Intervention group (SC reference)	.797	(.541, 1.175)	.252	.782	(.594, 1.029)	.079
Interaction	1.011	(1.004, 1.018)	.003	1.006	(1.001, 1.011)	.015

^a N for full models: 709 observations on 190 participants