The associations of chronotype and social jetlag with prosocial behavior problems among Chinese adolescents

A total of 4,666 middle school students were analyzed for associations between circadian rhythm and prosocial behavior problems.

• Evening chronotype was linked to a higher risk of prosocial behavior problems in both male (OR = 1.82) and female adolescents (OR = 1.83).
• Female adolescents experiencing 1-2 hours of social jetlag had 1.60 times the risk of prosocial behavior problems compared to those with less than 1 hour of social jetlag.
• Social jetlag of 2 hours or more was associated with increased risks of prosocial behavior problems in both male (OR = 1.79) and female adolescents (OR = 2.45).
• The combination of intermediate chronotype and social jetlag of 2 hours or more was correlated with prosocial behavior problems specifically in female adolescents (OR = 3.24).
• Evening chronotype and increased social jetlag are identified as risk factors for prosocial behavior problems, particularly in female adolescents.

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