1104 MATERNAL DEPRESSION AND SLEEP QUALITY IN EARLY POSTPARTUM: DO MATERNAL SLEEP-RELATED COGNITIONS AND NIGHTTIME BEHAVIOURS MEDIATE THE RELATIONSHIP?
Bibliographic record
Abstract
While postpartum depression has been linked to poorer maternal sleep quality, the pathways underlining this relationship are not well known. This study aimed to investigate the links between maternal postpartum depression, cognitions regarding infant sleep, nighttime behaviours and reported sleep quality. We propose a model linking postpartum depression and maternal sleep quality through maternal cognitions and ensuing maternal behaviours. Using a prospective cohort study design, nulliparous women with a singleton pregnancy completed questionnaires at 18, 28, 36 weeks gestation and 5 weeks postpartum. A sample of 452 women participated in this study. Measures included the Edinburgh Postnatal Depression Scale, three subscales from the Maternal Cognitions about Infant Sleep Questionnaire (Anger, Limits and Doubt) and the Pittsburgh Sleep Quality Index. Maternal nighttime behaviours, including infant settling methods, checking, and sleep location, were assessed by a questionnaire. Path analysis was undertaken using Mplus version 7 and mediators were tested using the Indirect approach. Model fit was assessed using a variety of standard fit indices. Depression is associated with maternal cognitions (Limits b=.20; p=.001; Anger b=.40, p<.001; Doubt b=.40; p<.001) and poorer sleep quality (b=.34; p<.001). Anger and doubt are associated with infant checking. Doubt is associated with sleep location (bed sharing coefficient =.03; p=.007; separate room coefficient = -.05; p<.001) and was found to mediate the relationship between depression and problematic nighttime behaviours. Both doubt and checking were found to mediate the relationship between depression and sleep quality (indirect effect = 0.01; p=.031). Some evidence substantiating the proposed maternal sleep model was found, especially pathways linking depression and sleep quality through doubt and checking behaviours. Further investigation of this model is warranted, especially in the context of developing interventions to improve maternal sleep quality during the postpartum period. Funding from Canadian Institutes of Health Research (CIHR)
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".