López-Díaz A, et al. - Researchers investigated the prospective temporal stability of acute and transient psychotic disorders (ATPDs). In addition, they sought for clinical, psychopathological, or sociodemographic characteristics that may help in predicting ATPD diagnostic stability. This prospective, 2-year, observational study was completed by 68 patients with a first episode of ATPD with a diagnostic stability rate as high as 55.9% (n = 38) at the end of the follow-up period. As per the multivariate analysis, there was a significant independent association of diagnostic stability with the baseline presence of motility disturbances, the absence of hallucinations, and the absence of schizophrenic features. A symptom checklist evaluating these psychopathological features may help in the early classification of those individuals whose initial ATPD diagnosis will remain stable over time.