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. 2024 Aug 22:sbae141.
doi: 10.1093/schbul/sbae141. Online ahead of print.

Associations Between Genetic Risk, Physical Activities, and Distressing Psychotic-like Experiences

Benson S Ku  1 , Qingyue Yuan  1 , Angelo Arias-Magnasco  2 , Bochao D Lin  2 , Elaine F Walker  3 , Benjamin G Druss  4 , Jiyuan Ren  5 , Jim van Os  6 , Sinan Guloksuz  2   7
Affiliations

Associations Between Genetic Risk, Physical Activities, and Distressing Psychotic-like Experiences

Benson S Ku et al. Schizophr Bull. .

Abstract

Background and hypothesis: Persistent distressing psychotic-like experiences (PLE) are associated with impaired functioning and future psychopathology. Prior research suggests that physical activities may be protective against psychopathology. However, it is unclear whether physical activities may interact with genetics in the development of psychosis.

Study design: This study included 4679 participants of European ancestry from the Adolescent Brain Cognitive Development Study. Persistent distressing PLE was derived from the Prodromal-Questionnaire-Brief Child Version using four years of data. Generalized linear mixed models tested the association between polygenic risk score for schizophrenia (PRS-SCZ), physical activities, and PLE. The models adjusted for age, sex, parental education, income-to-needs ratio, family history of psychosis, body mass index, puberty status, principal components for PRS-SCZ, study site, and family.

Study results: PRS-SCZ was associated with a greater risk for persistent distressing PLE (adjusted relative risk ratio (RRR) = 1.14, 95% CI [1.04, 1.24], P = .003). Physical activity was associated with less risk for persistent distressing PLE (adjusted RRR = 0.87, 95% CI [0.79, 0.96], P = .008). Moreover, physical activities moderated the association between PRS-SCZ and persistent distressing PLE (adjusted RRR = 0.89, 95% CI [0.81, 0.98], P = .015), such that the association was weaker as participants had greater participation in physical activities.

Conclusions: These findings demonstrate that the interaction between genetic liability and physical activities is associated with trajectories of distressing PLE. Further research is needed to understand the mechanisms of physical activities and genetic liability for schizophrenia in the development of psychosis.

Keywords: gene-environment interaction; physical activities; polygenic risk score; psychotic-like experiences; schizophrenia; team sports.

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