Impact of premenstrual syndrome and premenstrual dysphoric disorder on maternal antenatal depression.

In this study, we aimed to determine the association of premenstrual syndrome (PMS) or premenstrual dysphoric disorder (PMDD) with maternal antenatal depression. This cross-sectional, online questionnaire-based observational study included 212 pregnant women between gestational ages 24 weeks and 28 weeks 6 days. PMS and PMDD were measured using the PMDD Scale, and maternal antenatal depression was evaluated using the Edinburgh Postnatal Depression Scale.

Association Between Gestational Weeks, Initial Maternal Perception of Fetal Movement, and Individual Interoceptive Differences in Pregnant Women: Cross-Sectional Study.

Background: Interoception encompasses the conscious awareness of homeostasis in the body. Given that fetal movement awareness is a component of interoception in pregnant women, the timing of initial detection of fetal movement may indicate individual differences in interoceptive sensitivity.

Objective: The aim of this study is to determine whether the association between the gestational week of initial movement awareness and interoception can be a convenient evaluation index for interoception in pregnant women.

Association of Eicosapentaenoic and Docosahexaenoic Acid Intake with Low Birth Weight in the Second Trimester: The Japan Pregnancy Eating and Activity Cohort Study.

This study examined the association of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) intake during the second trimester with low birth weight (LBW) in pregnant Japanese women and was conducted in conjunction with the Japan Pregnancy Eating and Activity Cohort (J-PEACH) study. The study included 504 pregnant women from four Japanese sites. During the second trimester (14-27 weeks), the participants filled out a self-administered questionnaire assessing the frequency of DHA and EPA supplement intake in the past month, as well as a brief-type self-administered diet history questionnaire (BDHQ).

Association of sleep quality with temperament among one-month-old infants in The Japan Environment and Children's Study.

This study aimed to examine the association between infant sleep quality and temperament in one-month-old infants using a large cohort study data. We used data from the Japan Environment and Children's Study, a cohort study which follows around 100,000 women from pregnancy until their children's development. The mothers were asked about their infants' sleep and temperament using a structured questionnaire.

Interoception is associated with anxiety and depression in pregnant women: A pilot study.

Pregnancy and postpartum are periods in which women develop psychosocially. However, becoming a mother is stressful, and mood disorders related to anxiety and depression often develop. In recent years, research on interoception-sensations related to the body's internal physiological state-has attracted attention.

A longitudinal study of bonding failure related to aspects of posttraumatic stress symptoms after childbirth among Japanese mothers.

Background: Posttraumatic stress symptoms (PTSS) after childbirth may affect mother-infant bonding. This study examined the relationship between aspects of PTSS after childbirth and bonding failure for mothers at 1 month and 4 months after delivery.

Methods: This longitudinal study surveyed 130 mothers at 1 month (T1) and 4 months (T2) after delivery.

Use of the Stafford Interview for assessing perinatal bonding disorders.

Perinatal bonding disorders have been advocated by Brockington and he developed the semistructured Stafford Interview which contains a specific section to assess these disorders. To our knowledge, this is the first report on a fully described clinical case by using the interview. A 29-year-old primiparous mother gave birth to a healthy girl, but visited our clinic because of depression at one month postnatally and received pharmacotherapy.

The Japanese version of the Postpartum Bonding Questionnaire: Examination of the reliability, validity, and scale structure.

Objective: The purpose of this study was to develop the Japanese version of the Postpartum Bonding Questionnaire (PBQ) to gather data on Japanese mothers for comparison with other cultures and to examine the scale structure of the PBQ among Japanese mothers.

Methods: We administered the PBQ to a cross-section of 244 mothers 4 weeks after delivery and again 2 weeks later to 199 mothers as a retest to examine reliability. We used exploratory factor analysis to evaluate the factor structure of the PBQ.

Information-seeking experiences and decision-making roles of Japanese women with breast cancer.

Purpose: To investigate the information-seeking experiences and decision-making roles of Japanese women with breast cancer, to examine the relationship between information-seeking experiences and decision-making roles, and to explore the factors that influenced taking a more active role than the preferred role during the treatment decision-making process.

Methods: In a cross-sectional study, women with breast cancer were retrospectively administered the Control Preferences Scale and the Information-Seeking Experience Scale. The Chi-Square test was used to compare differences among individual variables in decision-making roles and information-seeking experiences.

[Analysis of parent-child sleeping and living habits related to later bedtimes in children].

Purpose: To find the relationship between parents' sleeping and living behaviors and their children's sleeping habits, and to investigate factors specifically related to children staying up late in recent Japan.

Methods: During regular health check-ups of children at three local health centers in the city A, we recruited the parents of one-and-half-year-old and three-year-old children to participate in the Child Sleep Cohort Project (ChiSCoP). Parents of 184 children who consented to participation were mailed three questionnaires by placement method.

[Analysis of late bedtime and influencing factors for it with respect to infants' development age and sleep behavior of parents and children].

Purpose: To understand influencing factors for late bedtime of infants having nocturnal life, with respect to each development age and sleep behavior of parents and children. We researched on sleep-awake behaviors and ten-day sleep logs of 277 subjects, who registered for a three-year cohort survey. The cohort is recruited at the time of routine examinations for 4 month, 1.