Analysis
REGRESSION, RECRUITMENT
All analyses were conducted using Statistical Package for Social Sciences (SPSS, Version 27.0, IBM Corp, 2020). The numbers and proportions of patients who indicated a willingness to participate in the future trial, their reasons for wanting or not wanting to take part and the numbers who actually enrolled were all computed. Differences in potential explanatory variables between people who enrolled in the trial eventually and those who did not were explored using appropriate univariate tests. The following variables were analysed on the basis that they have been shown to influence recruitment decisions in other research or could theoretically impact on motivation to participate in a trial such as RADAR: age, gender, marital status, ethnicity, employment, diagnosis, duration of antipsychotic treatment, form of antipsychotic (long-acting injection (LAI) versus oral) and DAI total score. Logistic regression was used to test the influence of multiple potential predictors that showed at least trend level statistical significance (p < 0.1) in univariate tests. The analysis was exploratory in nature since the sample size was relatively small.