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. Author manuscript; available in PMC: 2022 Dec 1.
Published in final edited form as: Health Psychol. 2021 Jun 17;40(12):887–896. doi: 10.1037/hea0001075

Table 3.

Tests of the associations between measures of the target mechanisms and 12-month vaccination status

12-month Vaccination Status
Odds Ratio (95% CI) p
Vaccine Reasons Recall
 Model 1: Recall Only 1.38 (0.53, 3.62) .513
 Model 2: Intervention Conditions Added 1.39 (0.47, 4.11) .549
 Model 3: Covariates Added 1.00 (0.32, 3.12) .999
Autonomous Motivation
 Model 1: Motivation Only 1.92 (1.09, 3.40) .025
 Model 2: Intervention Conditions Added 1.90 (1.07, 3.36) .029
 Model 3: Covariates Added 2.00 (1.08, 3.69) .028
 Model 4: Baseline Motivation Added 1.54 (0.77, 3.05) .221

Note. Successive models in the table added covariates, or a set of covariates, to the previous model to examine the effect adding them had on the association between the mechanism and vaccination status. Model 1’s: Mechanism as only predictor; Model 2’s: Mechanism + Intervention Conditions; Model 3’s: Mechanism + Intervention Conditions + Covariates; Model 4: Motivation + Intervention Conditions + Covariates + Baseline Motivation. The set of covariates included parent preferred language, child sex, child age group, clinic, and time of recruitment into the trial.