Suicidality and Mood: Long-Term Change and Seasonality Effects in Explicit and Implicit Cognitions from 2012 to 2018

Using advanced time-series modeling (ARIMA and Prophet Models) in a large international community sample (N > 10,445), we found evidence for long-term changes across the years and seasonal patterns in explicit and implicit self-harm cognitions. Respondents with a history of suicide attempts were particularly affected by yearly seasonal changes.