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With the aim of monitoring the mental and physical health of mothers and children following the Fukushima nuclear accident and providing them with necessary care, we have been conducting an annual survey of expectant and nursing mothers since 2011. The Pregnancy and Birth Survey is a mail-in survey of about 15,000 individuals, with a response rate of approximately 50.0% each year. In addition, because respondents to a survey conducted in the immediate aftermath of the disaster showed a particularly high rate of depression, follow-up surveys have been conducted at 4 years after childbirth. Reviewing the results of surveys from FY 2011 through FY 2018, we found that the prevalence of depressive symptoms among mothers was highest in the survey after childbirth and decreased over time. Data of follow-up surveys showed that the prevalence of depression was lower than immediately after childbirth and then decreased over time. The proportion of mothers with radiation anxiety was higher among respondents in the FY 2011 follow-up than in the FY 2014 follow-up, indicating the prolonged impact of the nuclear accident, especially among those who gave birth immediately after the disaster. Characteristics of mothers who received telephone parenting counseling included first delivery, caesarean section, living in evacuation zones, not being able to receive medical examinations as scheduled, and having radiation anxiety. Continuous care should be provided to mothers who gave birth immediately after the nuclear accident, including routine perinatal care and parenting support, provision of information on radiation, and long-term monitoring of their wellbeing.

Postpartum depression is a serious problem not only for mothers, but also for their children and families. Evidence is scarce on the effectiveness of couple-targeted antenatal interventions aimed at preventing postpartum depression in Asia. Therefore, we implemented an antenatal parenting support program from Australia ("empathy program") at three sites in Japan, and assessed the characteristics of participating couples and changes in their mental health indicators before and after the program (during pregnancy and 6 weeks postpartum, respectively). In this program, participant couples discussed concerns during pregnancy and a "difficult day" scenario with other same-gender participants and then with their own partners. In total, 100 couples attended the program. Among 60 participating mothers, 20% screened positive for maternal depression symptoms (defined as an Edinburgh Postnatal Depression Scale greater than 9). Changes in paternal empathy and maternal antenatal Edinburgh Postnatal Depression Scale score were significantly associated with maternal postpartum Edinburgh Postnatal Depression Scale score in multivariable analyses. Our results indicate that a key in preventing postpartum depression is paternal involvement and long-term support from antenatal phase.

Objectives Child care involves mentally and physically intensive work. Women involved in child care are prone to various cognitive failures (e.g., forgetting to carry something or missing an appointment) because of being overburdened with child care activities and chores, constantly limited attention for coping with the frequent demands of children, and cognitive deterioration in the perinatal period. We conducted a survey of women caring for children aged 3 months to 6 years old, aiming to 1) develop a Japanese version of the cognitive failure scale (named the Short Inventory of Minor Lapses [SIML]), and 2) examine the psychometric properties of the scale (including factor structure, validity, reliability, and score distribution), and comparing the scale score according to job status, the youngest child's age, and the number of children.Methods We used data obtained through an internet research company from 310 women (aged 25-45 years; 155 full-time workers and 155 housewives), caring for children aged 3 months to 6 years old. We used the 15-item SIML with a five-point Likert-type scale. We also collected information about employment status, maternal age, the youngest child's age, the number of children, income, the status of using child-care services, sleep duration, fatigue, and neuroticism.Results The scale consisted of one factor. Cognitive failure was found to have the following correlations with memory complaints (polyserial correlation=0.66), sleep duration (r=-0.17), fatigue (r=0.32), and neuroticism (r=0.22). Cronbach's alpha for the scale was 0.94. A three-way analysis of variance (including main effects of working status, the youngest child's age, and the number of children) in cognitive failure revealed significant main effects of the youngest child's age (aged 0-3 years: mean (standard deviation [SD])=34.9 (11.5) point,aged 4-6 years: mean (SD)=32.6 (10.5) point, partial η

This study aimed to clarify the frequency of and temporal changes in the content of mothers' free written opinions obtained in the Fukushima Health Management Survey Pregnancy and Birth Survey from 2011 to 2013. A self-administered questionnaire was mailed to women who delivered babies in Fukushima Prefecture. The questionnaire asked about maternal and child health. Expression of mothers' concerns about radiation decreased over time. Common to the top 5 codes across the 3 years were "radiation effect on fetus and infant" and "information provision including survey results." Participants who wrote free opinions were significantly more likely to be aged ≥30 years and to have depressive symptoms. Our descriptive analysis of the qualitative data showed a clear shift in mothers' concerns from radiation-related issues to their own physical and mental health. Mothers who expressed concerns were more likely to report negative physical and mental health.

The Pregnancy and Birth Survey was started by Fukushima Medical University as part of the Fukushima Health Management Survey in 2011 in order to assess the physical and mental health of mothers and provide parenting support (telephone counseling) for those in need. The present study reviewed the major findings from 4 annual surveys conducted from 2011 to 2014. Overall proportions of preterm deliveries, low birth weight infants, and congenital anomalies in the first year were almost the same as those in national surveillance data. The prevalence of depressive symptoms among the mothers held steady at about 25% over the 4 years. Regarding the content of parenting counseling, the proportion of mothers who voiced concerns about radiation decreased each year. This survey should be continued to provide support to mothers in Fukushima.