Loneliness and psychotic experiences in a general population sample

Area of Science:

• Psychiatry
• Mental Health Research
• Epidemiology

Background:

• Increased loneliness is a known risk factor for common mental disorders, including psychotic disorders.
• Limited research exists on the specific association between loneliness and psychotic experiences (PEs), particularly after adjusting for confounders.

Purpose of the Study:

• To investigate the relationship between loneliness and the occurrence of PEs in a US general population sample.
• To determine if this association remains significant after hierarchical adjustments for sociodemographic factors, adverse childhood experiences, and common mental disorders.

Main Methods:

• Cross-sectional study of 974 individuals from the US general population.
• Three regression models were used to analyze the association between loneliness and PEs.
• Hierarchical adjustments were applied for sociodemographic factors, adverse childhood experiences, and common mental disorders.

Main Results:

• Loneliness was significantly associated with increased odds of any PEs (OR=1.25, 95% CI=1.13-1.39) even after full adjustment.
• A significant association was also found between loneliness and delusional mood (OR=1.29, 95% CI=1.15-1.44).
• No significant associations were observed for other PEs (delusion of reference/persecution, delusions of control, hallucinations) after adjustments.

Conclusions:

• Increased loneliness is associated with a higher prevalence of PEs, particularly delusional mood.
• The findings highlight loneliness as a potential correlate of specific psychotic experiences.
• Future longitudinal and biological studies are needed to explore causality and underlying mechanisms.