Harumi Ozawa

Predicting early post-partum depressive symptoms among older primiparous Japanese mothers

AIM The number of older primiparas is increasing in Japan. These women have been shown to be more vulnerable to post-partum depression. This study aimed to identify factors for predicting post-partum depressive symptoms during hospitalization after childbirth in Japanese primiparas aged 35 years and over. METHODS The present authors used the data of 479 primiparas aged 35 years and over from a prospective cohort study. Data were collected using self-report questionnaires on the day before hospital discharge. The questionnaire consisted of: demographics and background information; depressive symptoms; fatigue; maternal confidence and maternal satisfaction; child-care values; physical symptoms; perceptions of daily life during hospitalization; concerns about child care and daily life; and infant feeding. Additionally, vital records data were obtained from the hospitals. A stepwise logistic regression analysis was performed on the binary outcome variable of depressive symptoms, measured by the Japanese version of the Edinburgh Postnatal Depression Scale. Women who scored 9 or more were considered to be at high risk for post-partum depression. The authors obtained informed consent from all participants and institutional ethics approvals before initiating the study. RESULTS The following six variables reliably predicted the risk of post-partum depression: emergency cesarean section, lower satisfaction with birth experience, higher physical burden in daily life, long-term complications with the newborn, more concerns about newborn caretaking after discharge, and more concerns about ones own life after discharge. CONCLUSION Recognition of women with these factors will help nurses to identify those at risk for developing post-partum depression and to provide appropriate care during hospitalization after childbirth.

Age-specific determinants of post-partum fatigue in primiparous women.

AIM Post-partum fatigue is a serious concern for mothers worldwide. The aim of this study was to identify age-specific determinants of self-perceived fatigue after childbirth among Japanese primiparous women. METHODS A multicenter prospective cohort study was conducted in Japan. The degree of fatigue was assessed using the Postnatal Accumulated Fatigue Scale during the hospital stay after childbirth. Associated factors were stratified into two age groups (<35 or ≥35 years old); data were analyzed using stepwise multiple regression. RESULTS In the younger group, significant determinants of post-partum fatigue included: anticipated difficulties in child-rearing after discharge; perception of inadequate sleep conditions; dissatisfaction with childbirth; shorter sleep and meal times; longer duration between feeding and infant bedtime; unemployment; and having hyperemesis gravidarum. In the older group, significant determinants of post-partum fatigue included: anticipated difficulties in child-rearing after discharge; perception of inadequate sleep conditions; shorter meal times; formula feeding; and dissatisfaction with childbirth. CONCLUSION Primiparous mothers who anticipated new life with their infants to be difficult and who had an irregular lifestyle tended to report higher levels of fatigue during the post-partum hospital stay. Nurses and midwives should assess maternal sleep and eating conditions, providing support to ensure adequate maternal rest. Special efforts should be made to reduce anxiety about new life with infants among younger primiparous women who had experienced hyperemesis gravidarum.

Objective sleep of older primiparous Japanese women during the first 4 months postpartum: An actigraphic study

This longitudinal study was designed to examine objective sleep parameters of older primiparous Japanese women during the first 4 months postpartum using actigraphy. The participants were 18 older primiparae (Mean (SD) = 37.06 (2.62) years, range 35-44 years) who gave birth to healthy neonates at one of three urban Japanese hospitals. Objective sleep quality was measured using actigraphy for 48 h at 1, 2 and 4 months postpartum. The Friedman test was used to test for differences in sleep parameters across time. Sleep duration (SMIN) increased significantly from 2 months (Mean (M) = 301.94 min) to 4 months (M = 372.78 min). Sleep efficiency (SE) increased significantly from 1 month (73.52%) to 2 (86.66%) and 4 months (89.05%). Waking after sleep onset (WASO) decreased significantly from 1 month (M = 114.64 min) to 2 (M = 40.18 min) and 4 months (M = 38.36 min) and long waking episodes (LWEP) significantly decreased from 1 month (4.67) to 2 (2.69) and 4 months (3.12). Persistent postpartum sleep problems can be a sign of postpartum depression as well as health problems among infants.

Comparing older and younger Japanese primiparae: Fatigue, depression and biomarkers of stress

This cohort study of primiparae was conducted to answer the following questions: Do older (≧ 35 years) and younger (20-29 years) Japanese primiparous mothers differ when comparing biomarkers of stress and measures of fatigue and depression? Are there changes in fatigue, depression and stress biomarkers when comparing older and younger mothers during the postpartum period? The Postnatal Accumulated Fatigue Scale and the Edinburgh Postnatal Depression Scale were administered in a time-series method four times: shortly after birth and monthly afterwards. Assays to measure biomarkers of stress, urinary 17-ketosteroids, urinary 17-hydroxycorticosteroids and salivary chromogranin-A, were collected shortly after delivery and at 1 month postpartum in both groups and a third time in older mothers at the 4th month. Statistical testing showed very little difference in fatigue, depression or stress biomarkers between older and younger mothers shortly after birth or 1 month later. Accumulated fatigue and depression scores of older mothers were highest 1 month after delivery. Additional cohort studies are required to characterize physical/psychological well-being of older Japanese primiparae.

Factors affecting maternal confidence among older and younger Japanese primiparae at one month post‐partum

AIM To compare the factors that affect maternal confidence at 1 month post-partum between older (≥35 years old) and younger (20-34 years old) primiparous Japanese mothers. METHODS A multicenter prospective study of mothers who gave birth to live singleton infants in Japan was conducted. Following ethics approval, the participants completed questionnaires 1 day before discharge and 1 month after childbirth. The questionnaires included the Postpartum Maternal Confidence Scale, demographics and background information, prenatal and obstetric data, situational variables and perceptions of daily life, and social support. The obstetric data were extracted from the hospital medical records. Data from the older primiparae (n = 479) and the younger primiparae (n = 1033) were analyzed by using multiple stepwise regressions, controlling for the delivery mode. RESULTS Maternal confidence at 1 month post-partum was positively associated with emotional support for the older primiparae and appraisal support and exclusive breastfeeding for younger primiparae. In both groups, feeling overwhelmed by daily life, a lack of communication with their partner about the parenting role, and a lack of prior experience in caring for babies were negatively related to maternal confidence. Family budget instability was negatively related to maternal confidence in the younger group. CONCLUSION Providing care that is based on an understanding of the unique support needs of first-time mothers in different age groups could promote more effective parenting.

Predictors of depressive symptoms in older Japanese primiparas at 1 month post-partum: A risk-stratified analysis.

AIM Older maternal age has become more common in Japan. Studies suggest that older maternal age and primiparity are associated with post-partum depression. The present study aimed to identify predictors of post-partum depression in older Japanese primiparas at 1 month post-partum. METHODS Participants were 479 primiparas aged 35 years and over, drawn from a prospective cohort study. Data were collected using self-report questionnaires. Depression was measured with the Japanese version of the Edinburgh Postnatal Depression Scale. Stepwise logistic regression analysis was conducted on binary outcome variables of depression at 1 month post-partum, along with a stratified analysis based on the risk status of depression. RESULTS Five predictors were identified: (i) the depression score during hospital stay; (ii) financial burden; (iii) dissatisfaction with appraisal support; (iv) physical burden in daily life; and (v) concerns about infant caretaking. Stratified analysis identified dissatisfaction with instrumental support in the low-risk group, and the Child-care Value Scale score as unique predictors in the high-risk group. CONCLUSION These results highlight the importance of early assessment of depressive symptoms and the provision of continuous care.

Developing the Maternity Portfolio to promote maternal role attainment in women who have undergone artificial reproductive treatment.

AIM The purpose of this study was to develop the Maternity Portfolio to promote maternal role attainment in women who underwent artificial reproductive treatment. METHODS The following procedures were undertaken to develop the Maternity Portfolio: (i) a literature review was conducted to identify studies and articles related to maternal diary or portfolio usage; (ii) the research members discussed objectives and usages of the Maternity Portfolio; (iii) a trial product was developed in collaboration with two pregnant women (one following artificial reproductive treatment and one infertility patient) and seven nurses, and after feedback was completed, the product was revised; and (iv) the final product of the Maternity Portfolio was patented. RESULTS The final Maternity Portfolio product consisted of a 40-page booklet; it contained an information section and a patient comments section. Following artificial reproductive treatment, this booklet can be provided to women during the first trimester. Women would then be instructed to bring the Maternity Portfolio to their prenatal checkups, where a nursing intervention program would be conducted by certified nurses. Through this program and the Maternity Portfolio, participating women are expected to obtain necessary information and maternal role attainment. CONCLUSIONS The Maternity Portfolio was developed to promote maternal role attainment for women who have undergone artificial reproductive treatment. The intervention study with the Maternity Portfolio is a work in progress; therefore, a future evaluation of the study will clarify both positive and negative aspects, which should facilitate refinement of the functions and qualities of the Maternity Portfolio.

Objective sleep of older primiparous Japanese women during the first 4 months postpartum: An actigraphic study: Japanese primiparae's sleep trajectories

This longitudinal study was designed to examine objective sleep parameters of older primiparous Japanese women during the first 4 months postpartum using actigraphy. The participants were 18 older primiparae (Mean (SD) = 37.06 (2.62) years, range 35-44 years) who gave birth to healthy neonates at one of three urban Japanese hospitals. Objective sleep quality was measured using actigraphy for 48 h at 1, 2 and 4 months postpartum. The Friedman test was used to test for differences in sleep parameters across time. Sleep duration (SMIN) increased significantly from 2 months (Mean (M) = 301.94 min) to 4 months (M = 372.78 min). Sleep efficiency (SE) increased significantly from 1 month (73.52%) to 2 (86.66%) and 4 months (89.05%). Waking after sleep onset (WASO) decreased significantly from 1 month (M = 114.64 min) to 2 (M = 40.18 min) and 4 months (M = 38.36 min) and long waking episodes (LWEP) significantly decreased from 1 month (4.67) to 2 (2.69) and 4 months (3.12). Persistent postpartum sleep problems can be a sign of postpartum depression as well as health problems among infants.

Evaluation of the training course for a nursing intervention programme to promote maternal role attainment in pregnant Japanese women who have undergone assisted reproductive technology

This study evaluated the effectiveness of a 2 day training course for a nursing intervention programme to promote maternal role attainment in pregnant Japanese women who have undergone assisted reproductive technology. Participants were 12 Japanese nurses with more than 3 years of clinical experience at reproductive institutions. The effectiveness of the training course was evaluated by assessing the following: (i) understanding of the nursing intervention programme; (ii) attitudes of nurses towards women who are pregnant following assisted reproductive technology; and (iii) self-efficacy for implementing the programme. The training course was effective in increasing basic understanding of the programme and in assisting self-evaluation of the attitudes of participants towards pregnant women. However, acquisition of effective interview skills and changes to make the programme clinically feasible are still needed. Findings suggest that researchers who use this training programme may need to evaluate and include training of nurses in interview skills suitable for their working environments.