Skip to main content

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

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

  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 baselinea −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 baselineb 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
  1. a Medication adherence in the 4 months prior to baseline bMotivation measured at baseline for each type of motivation