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  1. Article ; Online: Impact of adverse childhood experience on physical and mental health: A life-course epidemiology perspective.

    Fujiwara, Takeo

    Psychiatry and clinical neurosciences

    2022  Volume 76, Issue 11, Page(s) 544–551

    Abstract: Adverse childhood experiences (ACEs) have been shown to have long-term effects on physical and mental health, not only in the US, but also other countries, including Japan. In this paper, measurement of assessment of ACEs has been discussed, that is, ... ...

    Abstract Adverse childhood experiences (ACEs) have been shown to have long-term effects on physical and mental health, not only in the US, but also other countries, including Japan. In this paper, measurement of assessment of ACEs has been discussed, that is, concept (what is ACEs), inquiry (how to ask about ACEs), scoring (how to count the number of ACEs), and prevalence (how many ACEs do we have). In addition, a possible mechanism on how ACEs affect health was summarized from a life-course perspective, using the critical/sensitive period model, pathway model, and cumulative model with recent evidence on neurological findings. Intergenerational transmission, that is, maternal ACEs affecting the health of the offspring was also reviewed. Finally, future directions on how to prevent and remedy the impact of ACEs on health was discussed.
    MeSH term(s) Humans ; Adverse Childhood Experiences ; Mental Health ; Prevalence ; Japan/epidemiology
    Language English
    Publishing date 2022-09-24
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 1292906-2
    ISSN 1440-1819 ; 1323-1316
    ISSN (online) 1440-1819
    ISSN 1323-1316
    DOI 10.1111/pcn.13464
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Pitfalls and Tips for Statistical Methods in Epidemiology: A New Series of Special Articles Has Started.

    Fujiwara, Takeo

    Journal of epidemiology

    2020  Volume 30, Issue 4, Page(s) 151–152

    Language English
    Publishing date 2020-02-01
    Publishing country Japan
    Document type Editorial ; Comment
    ZDB-ID 1442118-5
    ISSN 1349-9092 ; 0917-5040
    ISSN (online) 1349-9092
    ISSN 0917-5040
    DOI 10.2188/jea.JE20190360
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Pitfalls and Tips for Statistical Methods in Epidemiology

    Takeo Fujiwara

    Journal of Epidemiology, Vol 30, Iss 4, Pp 151-

    A New Series of Special Articles Has Started

    2020  Volume 152

    Keywords Medicine (General) ; R5-920
    Language English
    Publishing date 2020-04-01T00:00:00Z
    Publisher Japan Epidemiological Association
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Competitiveness, country economic inequality and adolescent well-being: Analysis of 60 countries.

    Koyama, Yuna / Fujiwara, Takeo

    Social science & medicine (1982)

    2023  Volume 325, Page(s) 115892

    Abstract: Introduction: Competitiveness might impact on adolescent well-being considering the social salience distinct from the other age groups. However, there is only sizable research on competitiveness and well-being. Also, most previous studies did not ... ...

    Abstract Introduction: Competitiveness might impact on adolescent well-being considering the social salience distinct from the other age groups. However, there is only sizable research on competitiveness and well-being. Also, most previous studies did not distinguish between individual-level and country-level competitiveness and lacked consideration of contextual effects such as country inequality.
    Methods: Using cross-sectional data from the Program for International Student Assessment (PISA), we analyzed individual- and country-level competitiveness and its interaction with country inequality in relation to well-being (life satisfaction and purpose of life) in approximately 350,000 adolescents from 60 countries. Competitiveness and well-being were assessed via questionnaires. The Gini index retrieved from the World Bank was used for country inequality. A multilevel model was applied.
    Results: Individual-level competitiveness was positively associated with both life satisfaction (β = 0.087, 95%CI = 0.084 to 0.091) and purpose of life (β = 0.214, 95%CI = 0.211 to 0.217), while country-level competitiveness was not. Although adolescents in the least unequal countries were satisfied with life the most and those in the most unequal countries reported the strongest purpose of life, there observed a nonlinear effect modification as a stronger association in middle unequal countries (p for interaction <0.05) compared to both less and more unequal countries.
    Discussion: Individual-level competitiveness was positively associated with life satisfaction and purpose of life. The stronger association between competitiveness and well-being in middle unequal countries suggested that encouraging adolescents to compete within their activities or competition may work to mitigate the impact of country inequality.
    MeSH term(s) Adolescent ; Humans ; Adolescent Health ; Cross-Sectional Studies ; Surveys and Questionnaires ; Multilevel Analysis ; Personal Satisfaction ; Socioeconomic Factors ; Income
    Language English
    Publishing date 2023-04-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 4766-1
    ISSN 1873-5347 ; 0037-7856 ; 0277-9536
    ISSN (online) 1873-5347
    ISSN 0037-7856 ; 0277-9536
    DOI 10.1016/j.socscimed.2023.115892
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Association Between Accumulation of Child Maltreatment and Salivary Oxytocin Level Among Japanese Adolescents.

    Mizuki, Rie / Fujiwara, Takeo

    Frontiers in pediatrics

    2021  Volume 9, Page(s) 710718

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2021-11-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711999-3
    ISSN 2296-2360
    ISSN 2296-2360
    DOI 10.3389/fped.2021.710718
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Food Categories for Breakfast and Mental Health among Children in Japan: Results from the A-CHILD Study.

    Tani, Yukako / Isumi, Aya / Doi, Satomi / Fujiwara, Takeo

    Nutrients

    2023  Volume 15, Issue 5

    Abstract: There is limited evidence that what children eat for breakfast contributes to their mental health. This study aimed to examine the associations between food categories for breakfast and mental health among children in Japan. A proportion of participants ... ...

    Abstract There is limited evidence that what children eat for breakfast contributes to their mental health. This study aimed to examine the associations between food categories for breakfast and mental health among children in Japan. A proportion of participants aged 9-10 years in the Adachi Child Health Impact of Living Difficulty (A-CHILD) study in Japan who consumed breakfast daily were included (
    MeSH term(s) Humans ; Animals ; Breakfast ; Japan ; Mental Health ; Fruit ; Milk ; Edible Grain
    Language English
    Publishing date 2023-02-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu15051091
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Association between gestational weight gain and behavioral problems of the offspring aged 6-7 years: A population-based study in Japan.

    Terada, Shuhei / Isumi, Aya / Doi, Satomi / Tani, Yukako / Fujiwara, Takeo

    International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics

    2024  

    Abstract: Objective: To identify the optimal gestational weight gain (GWG) thresholds for behavioral problems and prosocial behavior in 6- to 7-year-old children.: Methods: A retrospective cohort study was conducted using data from the Adachi Child Health ... ...

    Abstract Objective: To identify the optimal gestational weight gain (GWG) thresholds for behavioral problems and prosocial behavior in 6- to 7-year-old children.
    Methods: A retrospective cohort study was conducted using data from the Adachi Child Health Impact of Living Difficulty study, including all first-graders in public schools in Adachi, Tokyo, in 2017, 2019, and 2021 (n = 11 048, response rate = 80.1%). GWG was based on clinical records in the Mother and Child Health Handbook. Total difficulties and prosocial behavior were assessed using the Strength and Difficulties Questionnaire. Logistic regression models with restricted cubic splines, and quintile categories were employed to examine the association of GWG with the clinical range of total difficulties and prosocial behavior, controlling for covariates.
    Results: The association between GWG and total difficulties exhibited a reverse J-shaped pattern, with low GWG, but not high GWG, increasing the risk (odds ratio [OR] 1.20, 95% confidence interval [CI] 1.01-1.42, P = 0.039 for GWG < 7 kg; OR 1.03, 95% CI 0.85-1.24, P = 0.786 for GWG > 14 kg), referencing the median (10 kg). High GWG was associated with a lower risk of problems in prosocial behavior (OR = 0.77, 95% CI 0.62-0.95, P = 0.017 for GWG > 14 kg; OR 1.06, 95% CI 0.88-1.27, P = 0.532 for GWG <7 kg).
    Conclusion: GWG less than 7 kg may increase the risk of total difficulties, whereas GWG over 14 kg may serve as a protective factor for prosocial behavior in 6- to 7-year-old children.
    Language English
    Publishing date 2024-02-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80149-5
    ISSN 1879-3479 ; 0020-7292
    ISSN (online) 1879-3479
    ISSN 0020-7292
    DOI 10.1002/ijgo.15410
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Associations of Cooking Skill with Social Relationships and Social Capital among Older Men and Women in Japan: Results from the JAGES.

    Tani, Yukako / Fujiwara, Takeo / Kondo, Katsunori

    International journal of environmental research and public health

    2023  Volume 20, Issue 5

    Abstract: The health benefits of social relationships and social capital are well known. However, little research has examined the determinants of social relationships and social capital. We examined whether cooking skill was associated with social relationships ... ...

    Abstract The health benefits of social relationships and social capital are well known. However, little research has examined the determinants of social relationships and social capital. We examined whether cooking skill was associated with social relationships and social capital in older Japanese people. We used 2016 Japan Gerontological Evaluation Study data on a population-based sample of men and women aged ≥ 65 years (
    MeSH term(s) Aged ; Female ; Humans ; Male ; Cooking ; Friends ; Interpersonal Relations ; Japan ; Social Capital ; Social Participation ; Social Support ; Social Isolation
    Language English
    Publishing date 2023-03-06
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph20054633
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Age-related changes in the activation timing of postural muscles to the prime mover muscle for bilateral arm flexion during standing.

    Kiyota, Takeo / Fujiwara, Katsuo

    Journal of physiological anthropology

    2022  Volume 41, Issue 1, Page(s) 20

    Abstract: Background: We aimed to obtain the standard values of age-related changes in the activation timing of postural muscles to the prime mover muscle (anterior deltoid [AD]) for bilateral arm flexion during standing.: Methods: The study participants were ... ...

    Abstract Background: We aimed to obtain the standard values of age-related changes in the activation timing of postural muscles to the prime mover muscle (anterior deltoid [AD]) for bilateral arm flexion during standing.
    Methods: The study participants were 276 children (aged 3-14 years) and 32 adults (aged 20-26 years). In response to a visual stimulus, participants raised both arms from a fully extended position as quickly as possible, stopped their arms voluntarily at a horizontal level at the shoulder, and maintained that position for 2 s. Ten test trials were performed. By using surface electromyography, the duration from the burst onset of the postural muscles to that of AD was measured as the starting time of the postural muscles (rectus abdominis [RA], erector spinae [ES], rectus femoris [RF], biceps femoris [BF], tibialis anterior [TA], gastrocnemius medialis [GcM], and soleus [SOL]). The starting time was presented as a negative value when the burst onset of the postural muscles preceded that of AD, which was defined as the preceding activation. A positive value for the starting time was defined as delayed activation.
    Results: In adults, the burst onsets of ES and BF significantly preceded that of AD. In ES, the starting time preceded the onset of AD in those aged ≥ 5-6 years; no difference with adults was found at age 13-14 years. On the other hand, in BF, significant delayed activation was found at ages 3-4 to 11-12 years. While the starting time decreased with age, no significant preceding activation similar to adults was found, even at age 13-14 years. In TA, no significant difference with the onset of AD was found at age 3-6 years, and significant delayed activation was found at age ≥ 7-8 years. Significant delayed activation in GcM, SOL, RA, and RF was observed in all age groups, and no age-related changes were observed in children.
    Conclusion: These findings could provide standard values from childhood to adolescence for age-related changes in anticipatory postural muscle activity during voluntary movement while standing and contribute to applications in the fields of sports and rehabilitation.
    MeSH term(s) Adolescent ; Adult ; Arm/physiology ; Child ; Child, Preschool ; Electromyography ; Humans ; Movement/physiology ; Muscle, Skeletal/physiology ; Postural Balance/physiology ; Posture/physiology
    Language English
    Publishing date 2022-05-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2248072-9
    ISSN 1880-6805 ; 1880-6791 ; 1345-3475
    ISSN (online) 1880-6805
    ISSN 1880-6791 ; 1345-3475
    DOI 10.1186/s40101-022-00295-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Age-related changes in the activation timing of postural muscles to the prime mover muscle for bilateral arm flexion during standing

    Takeo Kiyota / Katsuo Fujiwara

    Journal of Physiological Anthropology, Vol 41, Iss 1, Pp 1-

    2022  Volume 13

    Abstract: Abstract Background We aimed to obtain the standard values of age-related changes in the activation timing of postural muscles to the prime mover muscle (anterior deltoid [AD]) for bilateral arm flexion during standing. Methods The study participants ... ...

    Abstract Abstract Background We aimed to obtain the standard values of age-related changes in the activation timing of postural muscles to the prime mover muscle (anterior deltoid [AD]) for bilateral arm flexion during standing. Methods The study participants were 276 children (aged 3–14 years) and 32 adults (aged 20–26 years). In response to a visual stimulus, participants raised both arms from a fully extended position as quickly as possible, stopped their arms voluntarily at a horizontal level at the shoulder, and maintained that position for 2 s. Ten test trials were performed. By using surface electromyography, the duration from the burst onset of the postural muscles to that of AD was measured as the starting time of the postural muscles (rectus abdominis [RA], erector spinae [ES], rectus femoris [RF], biceps femoris [BF], tibialis anterior [TA], gastrocnemius medialis [GcM], and soleus [SOL]). The starting time was presented as a negative value when the burst onset of the postural muscles preceded that of AD, which was defined as the preceding activation. A positive value for the starting time was defined as delayed activation. Results In adults, the burst onsets of ES and BF significantly preceded that of AD. In ES, the starting time preceded the onset of AD in those aged ≥ 5–6 years; no difference with adults was found at age 13–14 years. On the other hand, in BF, significant delayed activation was found at ages 3–4 to 11–12 years. While the starting time decreased with age, no significant preceding activation similar to adults was found, even at age 13–14 years. In TA, no significant difference with the onset of AD was found at age 3–6 years, and significant delayed activation was found at age ≥ 7–8 years. Significant delayed activation in GcM, SOL, RA, and RF was observed in all age groups, and no age-related changes were observed in children. Conclusion These findings could provide standard values from childhood to adolescence for age-related changes in anticipatory postural muscle activity during voluntary ...
    Keywords Adolescence ; Anticipatory postural control ; Children ; Development ; Electromyography ; Physical anthropology. Somatology ; GN49-298
    Subject code 796
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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