Is Paternal Infant Care Associated with Breastfeeding? A Population-Based Study in Japan
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND: One qualitative study has reported that more paternal infant care and housework contributed to the maintenance of breastfeeding. However, few studies have quantitatively investigated these relationships. OBJECTIVE: This study aimed to examine the association of paternal involvement in infant care and housework with exclusive breastfeeding during the first 6 months of life. METHODS: Data from a population-based birth cohort study in Japan, the Longitudinal Survey of Babies in the 21st Century, were analyzed. We extracted information on infants who were singletons, term, normal birth weight, and living with both parents (n = 39 742). The associations between degree of paternal involvement in infant care and housework (high, middle, low) and breastfeeding patterns (exclusive, partial, formula only) were analyzed using ordered logistic regression adjusted for covariates. Maternal anxiety about childrearing was considered as a mediator. RESULTS: Compared with the low level of paternal infant care group, infants in the middle and high level groups were significantly less likely to have been breastfed (adjusted odds ratio: 0.90, 95% confidence interval [CI], 0.84-0.97; and 0.73, 95% CI, 0.67-0.79, respectively). In contrast, the amount of housework carried out by fathers was not associated with breastfeeding pattern. Maternal anxiety about childrearing did not attenuate the association between paternal infant care and breastfeeding. CONCLUSION: Paternal infant care was inversely associated with breastfeeding during the first 6 months of life. An additional intervention study about the importance of breastfeeding that aims to educate fathers who tend to involve themselves in infant care is needed.
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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 | 0.000 |
| Science and technology studies | 0.000 | 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 it