0016 Influence of Circadian Preference on Sleep, Depression, and Anxiety in Canadian Student-Athletes
Bibliographic record
Abstract
Abstract Introduction Student-athletes face unique demands that heighten vulnerability to both sleep and mental health problems. Circadian preference (CP) describes an individuals’ preferred timing for sleep and wake activity, with this conceived as a continuum between the extremes of morningness and eveningness. CP has been shown to influence both sleep and mental health, with greater eveningness preference generally associating with worse outcomes. However, these relationships are understudied in student-athletes. Thus, this investigation was designed to assess the influence of CP on sleep, depression, and anxiety in Canadian student-athletes. Methods Data were obtained throughout the academic semester from Canadian institutions, with student-athletes completing the Athlete Sleep Screening Questionnaire (ASSQ), General Anxiety Disorder-7 (GAD-7), and Patient Health Questionnaire (PHQ-9). ASSQ captured sleep health characteristics and CP, while GAD-7 and PHQ-9 assessed anxiety and depressive symptoms, respectively. ASSQ CP response options were Definitely-Morning, Morning, Evening, or Definitely-Evening as response options, and was coded on a 0-3 scale, with higher values representing increasing eveningness preference. Linear regression estimated associations of CP with sleep, depression, and anxiety. Adjusted regressions controlled for age, gender, race/ethnicity, and sport type. Results Sample included 559 Canadian student-athletes (Average Age = 18.9 ± 3.21 years; Percentage Women = 53%; Percentage White = 79.1%) from eight different sports. Regarding CP, 11.4% reported Definitely-Morning, 27.0% reported Morning, 41.8% reported Evening, and 19.8% reported Definitely-Evening. Greater eveningness preference significantly associated with worse overall sleep difficulties (padjusted < 0.0001), longer sleep latency (padjusted < 0.0001), reduced sleep satisfaction (padjusted < 0.0001), more prolonged sleep inertia (padjusted < 0.0001), more daytime naps (padjusted = 0.01), and more severe depressive symptomatology (padjusted = 0.0006). Conclusion Greater eveningness in a sample of Canadian student-athletes associated with worse sleep and psychological characteristics, including overall sleep difficulty, sleep latency, sleep satisfaction, sleep inertia, daytime napping, and depressive symptom severity. The results of this study provide compelling evidence that eveningness CP may predict poor mental and sleep health outcomes in student-athletes. Thus, further attention to circadian characteristics of student-athletes is warranted. Additionally, modifications to training schedules and team routines could be considered as preventative strategies for mental and sleep health problems. Support (if any) Mitacs #IT23469
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".