Background Literature has typically associated delusional disorder with a poorer prognosis relative to schizophrenia, without considering the confounding effect of age despite a differential age of onset. This study therefore aims to investigate the diagnostic stability, clinical, functional, and neurocognitive differences of Chinese first-episode psychosis age-matched patients with delusional disorder and schizophrenia at four years.Methods 71 delusional disorder and 71 age-matched schizophrenia patients were followed up for four years after their initial episode. Their symptoms, insight in psychosis, side effects of medication, medication compliance, functioning, and neurocognitive performance were assessed at four years.Results At four years, 65% of DD patients maintained the same diagnosis, while the rest shifted to SZ. Only those without a diagnostic shift were included in the analysis. Delusional disorder patients (N = 46) experienced more general symptoms and poorer insight, but better attitude towards medication than schizophrenia patients (N = 71). Social and occupational functioning, quality of life, and cognitive functioning, however, were similar in delusional disorder and schizophrenia patients.Conclusions Results indicate delusional disorder is less diagnostically stable than schizophrenia. Their outcomes in a Chinese population were largely similar at four years after removing the confounding age factor, implying that delusional disorder and schizophrenia may not be as distinct as previously thought.
Challenging parenting behaviour (CPB) refers to parental encouragement of behaviours where children push their own limits through engaging them engage in safe risks, such as rough-and-tumble play (Bögels & Phares, 2008). Preliminary evidence suggests that CPB reduces the risk of child anxiety however, little is known about the relationship between CPB and specific forms of anxiety disorders and the factors that influence this relationship. The present study aims to examine current maternal and paternal CPB in relation to symptoms of generalised anxiety disorder (GAD) and social anxiety disorder (SAD) in emerging adulthood, and to identify whether intolerance of uncertainty (IU) and cognitive avoidance (CA) sequentially mediate this relationship. A sample of 190 UK-based adults (aged 18–25) completed a battery of online self-report measures. Greater maternal CPB, but not paternal CPB, was found to predict lower symptoms of SAD, but not GAD. IU and CA did not sequentially mediate the relationship between CPB and symptoms of GAD or SAD. This study suggests that CPB may be associated with certain forms of anxiety disorders such as SAD, but further investigation is needed to understand the mechanisms between CPB and anxiety in young people.
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