Use of cannabis is moderately associated with physical violence, and this association remains significant regardless of study design and adjustment for confounding factors, such as socioeconomic factors and other substance use, suggests a study.
Adolescents with attention-deficit/hyperactivity disorder (ADHD) are likely to consume a greater amount of caffeine during later times of the day, which, in turn, is associated with sleep problems, a study has found.
Both psychiatric control and discordant-sibling designs do not corroborate the association of exposure to prenatal antidepressants with autism, results of a meta-analysis have shown. Moreover, discordant-sibling designs effectively address surveillance bias in pharmacovigilance reports derived from national registries and other large databases.
A Chinese cross-sectional case-control study has identified time spent following news on coronavirus disease 2019 (COVID-19) and drug-resistant epilepsy as two independent predictors of severe psychological distress among epilepsy patients during the COVID-19 pandemic.