Results
REGRESSION, SAID
A total of 210 participants from specialist mental health services were included in the analyses. Table 
Sample characteristics and differences between those who took part in the RADAR trial and those who did notWhen asked about whether they might be willing to take part in a future randomised trial of antipsychotic medication reduction versus maintenance treatment, 151 (71.9%) said they would, 16 (7.6%) indicated they might and 43 (20.5%) said they would not.The reasons people endorsed for whether or not they were interested in taking part in the trial are shown in Table 
Reasons for wanting to and not wanting to take part in the trial*people could give more than one reason, therefore percentages do not add up to 100.The most common reasons for not wanting to take part involved not wanting to be randomised (15%), or relatedly having a strong preference either for maintenance treatment (16%) or for antipsychotic reduction (5%).At least 57 people, representing 27.1% of all those who took part in the acceptability study, ultimately enrolled in the randomised trial. Of those who said they would like to take part, 51 (33.7%) enrolled in the trial. Five people who said they might like to take part were enrolled ( 31.3%) and one person who said they did not want to participate changed their mind and enrolled (Fig. 
Bar chart of numbers eventually enrolled in the randomised trial by stated willingness in the acceptability studyIn univariate tests, there were no differences between people who subsequently enrolled in the trial and those who did not in demographic or clinical characteristics, or in attitudes towards antipsychotic medication as measured by the DAI (Table 
Logistic regression of predictors of enrolling in the randomised trial