1088 Relationship Between Pacifier Use and Infant Sleep Metrics Obtained with Auto-videosomonography
Bibliographic record
Abstract
Abstract Introduction Pacifiers are routinely utilized among infants worldwide, yet their potential influence on infant sleep remains underexplored. Existing research offers conflicting insights, with one large-scale study finding no differences in sleep outcomes between pacifier users (PU) and non-users (nPU); however, this study relied on parent-reported sleep metrics, which are subject to bias. Other studies have utilized objective polysomnography measures, but these have been limited by small sample sizes and only one night of data per child in an unfamiliar environment, restricting their generalizability. To address these gaps, this study leverages a large sample and objective sleep metrics obtained through autovideosomnography, providing a novel and robust approach to understanding the relationship between pacifier use and infant sleep. Methods Among Nanit users, we recruited 243 families of infants 4-7 months. We obtained the following sleep metrics for each infant via autovideosmonography (5-14 nights): nighttime sleep duration (NSD), nighttime awakenings (NA), parental visits (PV). Additionally, we obtained parental reports on NDS and NA with the BISQ-R. We ran linear regressions with sleep metrics as outcomes, use of pacifier based on parental report as predictor and infant’s age as covariate. Results Forty-one percent of infants were PU. Compared to nPU, PU had more PV (𝛽=1.4±0.3,p< 0.001). PU were also more likely to sleep in a bassinet, rather than in a crib, compared to nPU (PU 20% vs nPU 6%). However, no differences were found between the groups in NSD and NA both for objective and parent-report metrics. Moreover, there was no difference in age, proportion of infants who fell asleep on their own or being held/rocked, or with an adult in the room without being held/rocked. Conclusion This is the first study to analyze the relationship between pacifier use at night and objective infant sleep metrics. While results from parental reports show no differences, as described by previous literature, objective sleep metrics show more parental interventions for infants using pacifiers, despite having the same nighttime sleep duration and awakenings, and mostly similar sleep ecology and parental involvement at bedtime. Support (if any)
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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".