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Dive into the research topics where Keiko Nanishi is active.

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Featured researches published by Keiko Nanishi.


PLOS ONE | 2015

Effective Linkages of Continuum of Care for Improving Neonatal, Perinatal, and Maternal Mortality: A Systematic Review and Meta-Analysis

Kimiyo Kikuchi; Evelyn K. Ansah; Sumiyo Okawa; Yeetey Enuameh; Junko Yasuoka; Keiko Nanishi; Akira Shibanuma; Margaret Gyapong; Seth Owusu-Agyei; Abraham Oduro; Gloria Quansah Asare; Abraham Hodgson; Masamine Jimba

Background Continuum of care has the potential to improve maternal, newborn, and child health (MNCH) by ensuring care for mothers and children. Continuum of care in MNCH is widely accepted as comprising sequential time (from pre-pregnancy to motherhood and childhood) and space dimensions (from community-family care to clinical care). However, it is unclear which linkages of care could have a greater effect on MNCH outcomes. The objective of the present study is to assess the effectiveness of different continuum of care linkages for reducing neonatal, perinatal, and maternal mortality in low- and middle-income countries. Methods We searched for randomized and quasi-randomized controlled trials that addressed two or more linkages of continuum of care and attempted to increase mothers’ uptake of antenatal care, skilled birth attendance, and postnatal care. The outcome variables were neonatal, perinatal, and maternal mortality. Results Out of the 7,142 retrieved articles, we selected 19 as eligible for the final analysis. Of these studies, 13 used packages of intervention that linked antenatal care, skilled birth attendance, and postnatal care. One study each used packages that linked antenatal care and skilled birth attendance or skilled birth attendance and postnatal care. Four studies used an intervention package that linked antenatal care and postnatal care. Among the packages that linked antenatal care, skilled birth attendance, and postnatal care, a significant reduction was observed in combined neonatal, perinatal, and maternal mortality risks (RR 0.83; 95% CI 0.77 to 0.89, I2 79%). Furthermore, this linkage reduced combined neonatal, perinatal, and maternal mortality when integrating the continuum of care space dimension (RR 0.85; 95% CI 0.77 to 0.93, I2 81%). Conclusions Our review suggests that continuous uptake of antenatal care, skilled birth attendance, and postnatal care is necessary to improve MNCH outcomes in low- and middle-income countries. The review was conclusive for the reduction of neonatal and perinatal deaths. Although maternal deaths were not significantly reduced, composite measures of all mortality were. Thus, the evidence is sufficient to scale up this intervention package for the improvement of MNCH outcomes.


Journal of Human Lactation | 2014

Reliability and Validity of the Japanese Version of the Iowa Infant Feeding Attitude Scale A Longitudinal Study

Keiko Nanishi; Masamine Jimba

Background: The 17-item Iowa Infant Feeding Attitude Scale (IIFAS) has shown good reliability and validity to measure attitudes toward infant feeding in various countries. It is also known to be associated with breastfeeding intention and exclusivity. However, the IIFAS has not been psychometrically tested among Japanese women. Objective: This study aimed to develop the Japanese version of the IIFAS (IIFAS-J) and assess its reliability and validity. Methods: This longitudinal study was conducted with 781 women at 4 hospitals in Japan. The translated IIFAS was administered to participants during their third trimester. Infant feeding status was self-reported at 4 and 12 weeks postpartum using follow-up questionnaires. The predictive validity was determined by examining the association between the IIFAS-J score during pregnancy and infant feeding status at 4 and 12 weeks postpartum. Results: One item was removed after a principal components analysis. Therefore, the IIFAS-J consisted of 16 items. Cronbach’s alpha of the IIFAS-J was 0.66. A higher IIFAS-J score during the third trimester was associated with a higher postdischarge exclusive breastfeeding rate at 4 weeks postpartum (B = 0.05; adjusted odds ratio = 1.05; 95% confidence interval, 1.01-1.10). Conclusion: The 16-item Japanese version of the IIFAS is a reliable and valid scale for measuring maternal infant-feeding attitudes during pregnancy.


PLOS ONE | 2015

Continuum of Care in a Maternal, Newborn and Child Health Program in Ghana: Low Completion Rate and Multiple Obstacle Factors

Francis Yeji; Akira Shibanuma; Abraham Oduro; Cornelius Debpuur; Kimiyo Kikuchi; Seth Owusu-Agei; Margaret Gyapong; Sumiyo Okawa; Evelyn K. Ansah; Gloria Quansah Asare; Keiko Nanishi; John W. Williams; Sheila Addei; Charlotte Tawiah; Junko Yasuoka; Yeetey Enuameh; Evelyn Sakeah; Peter Wontuo; Masamine Jimba; Abraham Hodgson

Background Slow progress has been made in achieving the Millennium Development Goals 4 and 5 in Ghana. Ensuring continuum of care (at least four antenatal visits; skilled birth attendance; postnatal care within 48 hours, at two weeks, and six weeks) for mother and newborn is crucial in helping Ghana achieve these goals and beyond. This study examined the levels and factors associated with continuum of care (CoC) completion among Ghanaian women aged 15–49. Methods A retrospective cross-sectional survey was conducted among women who experienced live births between January 2011 and April 2013 in three regions of Ghana. In a two-stage random sampling method, 1,500 women with infants were selected and interviewed about maternal and newborn service usage in line with CoC. Multiple logistic regression models were used to assess factors associated with CoC completion. Results Only 8.0% had CoC completion; the greatest gap and contributor to the low CoC was detected between delivery and postnatal care within 48 hours postpartum. About 95% of women had a minimum of four antenatal visits and postnatal care at six weeks postpartum. A total of 75% had skilled assisted delivery and 25% received postnatal care within 48 hours. Factors associated with CoC completion at 95% CI were geographical location (OR = 0.35, CI 0.13–0.39), marital status (OR = 0.45; CI 0.22–0.95), education (OR = 2.71; CI 1.11–6.57), transportation (OR = 1.97; CI 1.07–3.62), and beliefs about childhood illnesses (OR = 0.34; CI0.21–0.61). Conclusion The continuum of care completion rate is low in the study site. Efforts should focus on increasing postnatal care within 48 hours and overcoming the known obstacles to increasing the continuum of care completion rate.


PLOS ONE | 2015

Determining a Cut-Off Point for Scores of the Breastfeeding Self-Efficacy Scale-Short Form: Secondary Data Analysis of an Intervention Study in Japan.

Keiko Nanishi; Joseph Green; Masataka Taguri; Masamine Jimba

Background Breastfeeding self-efficacy can be measured with the Breastfeeding Self-Efficacy Scale-Short Form (BSES-SF). Mothers with low BSES-SF scores stop exclusive breastfeeding prematurely, but specific interventions can prevent that undesirable outcome. Because those interventions can be expensive, often one must decide which mothers will receive them. For that purpose, a cut-off BSES-SF score would be useful, but none is available. Therefore, we aimed to assess the overall accuracy of BSES-SF scores as predictors of not practicing post-discharge exclusive breastfeeding, and to choose an appropriate cut-off score for making that prediction. Methods This is a secondary data analysis of an intervention study. Data from 378 women in two non-Baby-Friendly Hospitals were analyzed. Participants were women in their third trimester who were 16 years of age or older, were able to read and write Japanese, were expected to have a singleton birth, and had completed the BSES-SF before discharge. BSES-SF scores were measured before discharge. Breastfeeding status was assessed 4 weeks and 12 weeks postpartum. Receiver Operating Characteristic (ROC) curves were used to assess the predictive ability of the BSES-SF and to inform the choice of a cut-off point. Results For both of the ROC curves (4 and 12 weeks postpartum) the area under the curve was 0.74. To obtain a high sensitivity, a cut-off score of 50 was chosen. With that cut-off score the sensitivity was 79% and the specificity was 52% 4 weeks postpartum, and they were 77% and 52%, respectively, 12 weeks postpartum. Conclusion In conclusion, the BSES-SF has moderate overall accuracy to distinguish women who will not practice exclusive breastfeeding after discharge from those who will. At non-Baby-Friendly hospitals in Japan, interventions to support exclusive breastfeeding might be considered for new mothers who have BSES-SF scores that are less than or equal to 50.


PLOS ONE | 2016

Factors Influencing Health Facility Delivery in Predominantly Rural Communities across the Three Ecological Zones in Ghana: A Cross-Sectional Study

Yeetey Enuameh; Sumiyo Okawa; Kwaku Poku Asante; Kimiyo Kikuchi; Emmanuel Mahama; Evelyn K. Ansah; Charlotte Tawiah; Kwame Adjei; Akira Shibanuma; Keiko Nanishi; Francis Yeji; Enoch Oti Agyekum; Junko Yasuoka; Margaret Gyapong; Abraham Oduro; Gloria Quansah Asare; Abraham Hodgson; Masamine Jimba; Seth Owusu-Agyei

Background Maternal and neonatal mortality indicators remain high in Ghana and other sub-Saharan African countries. Both maternal and neonatal health outcomes improve when skilled personnel provide delivery services within health facilities. Determinants of delivery location are crucial to promoting health facility deliveries, but little research has been done on this issue in Ghana. This study explored factors influencing delivery location in predominantly rural communities in Ghana. Methods Data were collected from 1,500 women aged 15–49 years with live or stillbirths that occurred between January 2011 and April 2013. This was done within the three sites operating Health and Demographic Surveillance Systems, i.e., the Dodowa (Greater Accra Region), Kintampo (Brong Ahafo Region), and Navrongo (Upper-East Region) Health Research Centers in Ghana. Multivariable logistic regression was used to identify the determinants of delivery location, controlling for covariates that were statistically significant in univariable regression models. Results Of 1,497 women included in the analysis, 75.6% of them selected health facilities as their delivery location. After adjusting for confounders, the following factors were associated with health facility delivery across all three sites: healthcare provider’s influence on deciding health facility delivery, (AOR = 13.47; 95% CI 5.96–30.48), place of residence (AOR = 4.49; 95% CI 1.14–17.68), possession of a valid health insurance card (AOR = 1.90; 95% CI 1.29–2.81), and socio-economic status measured by wealth quintiles (AOR = 2.83; 95% CI 1.43–5.60). Conclusion In addition to known factors such as place of residence, socio-economic status, and possession of valid health insurance, this study identified one more factor associated with health facility delivery: healthcare provider’s influence. Ensuring care provider’s counseling of clients could improve the uptake of health facility delivery in rural communities in Ghana.


PLOS ONE | 2015

High Incidence of Neonatal Danger Signs and Its Implications for Postnatal Care in Ghana: A Cross-Sectional Study

Sumiyo Okawa; Evelyn K. Ansah; Keiko Nanishi; Yeetey Enuameh; Akira Shibanuma; Kimiyo Kikuchi; Junko Yasuoka; Margaret Gyapong; Seth Owusu-Agyei; Abraham Oduro; Gloria Quansah Asare; Abraham Hodgson; Masamine Jimba

Background Reducing neonatal mortality is a major public health priority in sub-Saharan Africa. Numerous studies have examined the determinants of neonatal mortality, but few have explored neonatal danger signs which potentially cause morbidity. This study assessed danger signs observed in neonates at birth, determined the correlations of multiple danger signs and complications between neonates and their mothers, and identified factors associated with neonatal danger signs. Methods A cross-sectional study was conducted in three sites across Ghana between July and September in 2013. Using two-stage random sampling, we recruited 1,500 pairs of neonates and their mothers who had given birth within the preceding two years. We collected data on their socio-demographic characteristics, utilization of maternal and neonatal health services, and experiences with neonatal danger signs and maternal complications. We calculated the correlations of multiple danger signs and complications between neonates and their mothers, and performed multiple logistic regression analysis to identify factors associated with neonatal danger signs. Results More than 25% of the neonates were born with danger signs. At-birth danger signs in neonates were correlated with maternal delivery complications (r = 0.20, p < 0.001), and neonatal complications within the first six weeks of life (r = 0.19, p < 0.001). However, only 29.1% of neonates with danger signs received postnatal care in the first two days, and 52.4% at two weeks of life. In addition to maternal complications during delivery, maternal age less than 20 years, maternal education level lower than secondary school, and fewer than four antenatal care visits significantly predicted neonatal danger signs. Conclusions Over a quarter of neonates are born with danger signs. Maternal factors can be used to predict neonatal health condition at birth. Management of maternal health and close medical attention to high-risk neonates are crucial to reduce neonatal morbidity in Ghana.


Geriatrics & Gerontology International | 2015

Sense of coherence as a key to improve homebound status among older adults with urinary incontinence

Kyo Takahashi; Atsushi Kato; Eriko Sase; Akira Shibanuma; Kimiyo Kikuchi; Keiko Nanishi; Masamine Jimba; Junko Yasuoka

Being homebound is regarded as a negative condition for social participation in Japan. However, little is known about the possibility of psychological resilience to prevent being homebound among older adults with urinary incontinence. The present study aimed to examine the association between sense of coherence as a measure of psychological resilience and being homebound among older adults with urinary incontinence.


PLOS ONE | 2016

Effectiveness of continuum of care - Linking pre-pregnancy care and pregnancy care to improve neonatal and perinatal mortality: A systematic review and meta-analysis

Kimiyo Kikuchi; Sumiyo Okawa; Collins O. F. Zamawe; Akira Shibanuma; Keiko Nanishi; Azusa Iwamoto; Yu Mon Saw; Masamine Jimba

In an era of Sustainable Development Goals, maternal, newborn, and child health still require improvement. Continuum of care is considered key to improving the health status of these populations. The continuum of care is a series of care strategies starting from pre-pregnancy to motherhood-childhood. The effectiveness of such linkage between the pregnancy, birth, and postnatal periods has been demonstrated. However, almost no study has assessed the impact of linkage that starts from pre-pregnancy to pregnancy care on maternal and child health. The present study attempts to fill this gap by assessing the effectiveness of the care linkage between pre-pregnancy and pregnancy care for reducing neonatal, perinatal, and maternal mortality in low- and middle-income countries. We performed a systematic review and meta-analysis of randomized and quasi-randomized controlled trials in low- and middle-income countries. The outcome variables were neonatal, perinatal, and maternal mortality. We searched databases such as PubMed/Medline, POPLINE, EBSCO/CINAHL, and ISI Web of Science for the period 2000–2014, using broad search terms (e.g., pre-pregnancy OR adolescent OR mother), combined with search terms specific for interventions, (e.g., family planning OR contraception OR spacing). From the 1,325 retrieved articles, five studies were finally analyzed. The meta-analysis showed that interventions linking pre-pregnancy and pregnancy care effectively reduced neonatal mortality (risk ratio [RR]: 0.79; 95% confidence interval [CI]: 0.71–0.89, I2 = 62%) and perinatal mortality (RR: 0.84; 95% CI: 0.75–0.94, I2 = 73%), but did not show an effect on maternal mortality. Neonatal and perinatal mortality could be reduced by linking pre-pregnancy and pregnancy care. This linkage of pre-pregnancy and pregnancy cares is an essential component of continuum of care to improve newborn health. Review Registration PROSPERO International prospective register of systematic reviews (CRD42015023424).


Global Health Action | 2017

Determinants of attending antenatal care at least four times in rural Ghana: analysis of a cross-sectional survey

Evelyn Sakeah; Sumiyo Okawa; Abraham Oduro; Akira Shibanuma; Evelyn K. Ansah; Kimiyo Kikuchi; Margaret Gyapong; Seth Owusu-Agyei; John W. Williams; Cornelius Debpuur; Francis Yeji; Vida Kukula; Yeetey Enuameh; Gloria Quansah Asare; Enoch Oti Agyekum; Sheila Addai; Doris Sarpong; Kwame Adjei; Charlotte Tawiah; Junko Yasuoka; Keiko Nanishi; Masamine Jimba; Abraham Hodgson

ABSTRACT Background: Improving maternal health is a global challenge. In Ghana, maternal morbidity and mortality rates remain high, particularly in rural areas. Antenatal care (ANC) attendance is known to improve maternal health. However, few studies have updated current knowledge regarding determinants of ANC attendance. Objective: This study examined factors associated with ANC attendance in predominantly rural Ghana. Methods: We conducted a cross-sectional study at three sites (i.e. Navrongo, Kintampo, and Dodowa) in Ghana between August and September 2013. We selected 1500 women who had delivered within the two years preceding the survey (500 from each site) using two-stage random sampling. Data concerning 1497 women’s sociodemographic characteristics and antenatal care attendance were collected and analyzed, and factors associated with attending ANC at least four times were identified using logistic regression analysis. Results: Of the 1497 participants, 86% reported attending ANC at least four times, which was positively associated with possession of national health insurance (AOR 1.64, 95% CI: 1.14–2.38) and having a partner with a high educational level (AOR 1.64, 95% CI: 1.02–2.64) and negatively associated with being single (AOR 0.39, 95% CI: 0.22–0.69) and cohabiting (AOR 0.57, 95% CI: 0.34–0.97). In site-specific analyses, factors associated with ANC attendance included marital status in Navrongo; marital status, possession of national health insurance, partners’ educational level, and wealth in Kintampo; and preferred pregnancy timing in Dodowa. In the youngest, least educated, and poorest women and women whose partners were uneducated, those with health insurance were more likely to report at least four ANC attendances relative to those who did not have insurance. Conclusions: Ghanaian women with low socioeconomic status were less likely to report at least four ANC attendances during pregnancy if they did not possess health insurance. The national health insurance scheme should include a higher number of deprived women in predominantly rural communities.


Public Health Nutrition | 2016

Food-choice motives of adolescents in Jakarta, Indonesia: the roles of gender and family income

Rizka Maulida; Keiko Nanishi; Joseph Green; Akira Shibanuma; Masamine Jimba

OBJECTIVE The aims of the present study were to assess the reliability and validity of the Food Choice Questionnaire (FCQ) and to determine the factors associated with food-choice motives in public junior-high-school students in Jakarta, Indonesia. DESIGN Cross-sectional study with self-administered questionnaires. Trained research assistants measured height and weight of the participants on the day of the data collection. Settings Fourteen randomly selected public junior-high schools in East Jakarta, Indonesia. SUBJECTS Public junior-high-school students (n 681) in grades 7 and 8, aged 13-14 years (377 girls and 304 boys). RESULTS Three food-choice motives (subscales) were obtained from factor analysis and reliability testing: (i) comfort; (ii) convenience and price; and (iii) health. The subscale with the greatest mean value was health. Family affluence was inversely associated with the convenience and price subscale (β=-0·05, P=0·01) and with the health subscale (β=-0·04; P=0·02). Females were less likely than males to consider health when choosing foods (β=-0·16; P=0·03). CONCLUSIONS While its factor structure differed from those found in previous studies of adults, the FCQ can provide reliable measures of food-choice motives among these adolescents. Students from less affluent families placed more importance on foods convenience and price, but more affluent students did not necessarily make healthier choices. Compared with females, males were more likely to choose healthy foods. Future interventions should be tailored based on the socio-economic status of the target group.

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Abraham Hodgson

University for Development Studies

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Abraham Oduro

University for Development Studies

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Margaret Gyapong

University of Health and Allied Sciences

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Yeetey Enuameh

Kwame Nkrumah University of Science and Technology

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