Non-linear relationship between social jetlag and depressive symptoms among Chinese college students

May 26, 2025Scientific reports

Social jetlag and depression symptoms have a complex link in Chinese college students

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Abstract

Among 2,006 college students, 10.1% reported .

  • is calculated as the difference between sleep midpoints on workdays and weekends.
  • A non-linear relationship exists between social jetlag and depressive symptoms.
  • The risk of depression increases significantly when social jetlag exceeds 1.2 hours.
  • Students with social jetlag of 1.2 hours or more have 72% higher odds of depressive symptoms compared to those with lower levels.
  • This association holds true across different grades and genders.

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Key numbers

1.72
Increase in Odds of
comparing ≥ 1.2 h vs. < 1.2 h
10.1%
Prevalence of
Percentage of participants with score ≥ 10
1,764
Sample Size
Total number of participants who completed the questionnaire

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