The effect of financial incentives on patients’ motivation for treatment: results of “Money for Medication,” a randomised controlled trial

Table 2 Coefficients for regression model, adjusted for medication side-effects, illness insight, or medication adherence

	External motivation			Introjected motivation			Identified motivation
	β	95% CI	p value	β	95% CI	p value	β	95% CI	p value
Intercept	12.45	2.96; 21.94	0.011	5.71	−6.01; 17.41	0.341	7.41	−3.85; 18.67	0.197
Condition	0.37	−2.49; 3.23	0.799	− 2.39	−6.22; 1.44	0.222	−0.91	−4.42; 2.61	0.613
Gender	1.61	−1.82; 5.04	0.358	0.57	−4.09; 5.24	0.811	−3.76	−8.04; 0.52	0.085
Substance use	1.09	−1.88; 4.06	0.472	0.77	−3.26; 4.79	0.708	−0.28	−3.97; 3.42	0.884
Medication adherence baseline^a	−0.03	−0.11; 0.06	0.548	0.04	−0.07; 0.16	0.506	0.09	−0.02; 0.19	0.103
Motivation baseline^b	0.43	0.25; 0.61	< 0.001	0.61	0.41; 0.81	< 0.001	0.56	0.39; 0.72	< 0.001
Medication side-effects	−0.12	−0.54; 0.29	0.571	−0.11	−0.67; 0.46	0.714	0.34	−0.16; 0.84	0.181
Illness insight	−0.29	−1.13; 0.54	0.486	−1.33	−2.47; − 0.19	0.023	−1.65	−2.72; − 0.59	0.002
Medication adherence 12 months	−0.03	− 0.14; 0.07	0.542	− 0.02	−0.16; 0.12	0.796	0.02	−0.11; 0.15	0.711

^a Medication adherence in the 4 months prior to baseline ^bMotivation measured at baseline for each type of motivation

ISSN: 1471-244X