| NICU | Neonatal intensive care unit |
| ACEs | Adverse childhood experiences |
| JACSIS | Japan COVID-19 Social Internet Survey |
| OR | Odds ratio |
| CI | Confidence interval |
| ACE-J | Japanese-adapted version of the Adverse Childhood Experiences Questionnaire |
| IPTW | inverse probability of treatment weighting |
| BMI | Body mass index |
| SD | Standard deviations |
| EPDS | Edinburgh Postnatal Depression Scale |
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