Child Maltreatment Among Singletons and Multiple Births in Japan: A Population-Based Study

Yokoyama, Yoshie; Oda, Terumi; Nagai, Noriyo; Sugimoto, Masako; Mizukami, Kenji

doi:10.1017/thg.2015.67

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…Meanwhile, according to a population-based study, the risk of child maltreatment is higher in multiple births. However, findings from our study showed that multiple birth was not associated with increased risk of child maltreatment (Yokoyama et al, 2015). Compared with singletons, multiples had a significantly higher rate of risk factors for child maltreatment including low birth weight, disorders of the nervous system, and poor maternal health.…”

Section: Focus Of the Studycontrasting

confidence: 71%

The New West Japan Twins and Higher Order Multiple Births Registry

Yokoyama

2019

Twin Res Hum Genet

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The new West Japan Twins and Higher Order Multiple Births Registry was established by recruiting young twins and multiple births and by referrals from public health centers in the 1990s. The participants included in the survey comprised over 7800 twins and 4241 higher order multiples, and their families. Specifically, the present registry contains one of the largest triplet samples in the world. For these twins and multiples, data on year of delivery, mode of delivery, gestational age, intrapartum complications, longitudinal physical measures, motor milestones, cerebral palsy and feeding methods were obtained from records in the Maternal and Child Health Handbooks and schools. Participating mothers were asked to indicate family structure, parental educational history, maternal sleeping time, maternal health condition, maternal and paternal age at multiple delivery, complications during pregnancy, handedness of multiples and age at menarche of multiples. However, the zygosity differed among the various collaborating public health centers according to factors such as the time of investigation. Follow-up questionnaires have been mailed out every 3–4 years for longitudinal studies. This article describes the goals of this registry, recruitment of multiples and the focus of the study. The goals of this registry are not only to conduct research on human genetics and maternal and child health, but also to contribute to providing appropriate information for families with multiples.

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Section: Focus Of the Studycontrasting

confidence: 71%

The New West Japan Twins and Higher Order Multiple Births Registry

Yokoyama

2019

Twin Res Hum Genet

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“…The magnitude of the simultaneous parental investment is larger for parents of twins compared to parents of age-discrepant siblings. This could increase, for example, parental stress (Thorpe et al, 1991), which might constitute risk factors for child victimization (Yokoyama et al, 2015). Lastly, although the current sample is highly representative of the Finnish population (Johansson et al, 2013; Rehan et al, 2017), some cultural aspects pertinent to child victimization might not generalize to other populations.…”

Section: Discussionmentioning

confidence: 99%

Genetic Vulnerability to Experiencing Child Maltreatment

et al. 2019

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Although biological factors may influence the risk of experiencing negative life events, the role of genes in the vulnerability to child victimization remains poorly understood. In a large population-based Finnish sample (N = 13,024), we retrospectively measured multiple experiences of child victimization and, in a subsample of twins (n = 9,562), we estimated the extent to which genetic and environmental factors influenced these experiences. In particular, we investigated whether genetic and environmental influences varied depending on the type of child victimization, the genetic relatedness with the perpetrator, and the sex of the victim. Our quantitative genetic analyses supported the presence of both genetic and environmental influences on the occurrence and co-occurrence of child abuse and neglect. We also identified one common etiological pathway underlying multiple child victimizations, and after accounting for this common etiology, we singled out risk factors specific to sexual abuse. Environmental factors shared and nonshared between twins raised together influenced the risk of victimization by genetically related and unrelated perpetrators, respectively. Furthermore, we estimated sex differences in the etiology of emotional and sexual victimization, including larger unshared environmental influences for men and sex-limited genetic effects for women. These findings can inform child protection as they contribute to explaining why certain individuals are at increased risk of experiencing one or more types of child maltreatment.

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“…We excluded twin birth samples (n = 110; the proportion of the whole sample was 1.7%) as they increase the risk of perception of infant crying [21], mother-infant interaction [32], and abusive behavior [33][34][35], and causes the ambiguity of which out of the infertility treatment and the twin was investigated. We also excluded samples with missing values for infertility treatment history, perception of infant crying, bonding impairment, abusive behavior, and parental age, as parental age is a strong predictor of infertility treatment [36,37] (n = 90, 1.4% of the respondent sample).…”

Section: Procedures and Participantsmentioning

confidence: 99%

Association of Infertility Treatment with Perception of Infant Crying, Bonding Impairment and Abusive Behavior towards One’s Infant: A Propensity-Score Matched Analysis

Sampei

Fujiwara

2020

IJERPH

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Background: Although previous qualitative studies suggested the link between infertility treatment and negative emotions towards infants, few empirical population-based studies have investigated the association of infertility treatment with the perception of infant crying, bonding impairment, and abusive behavior towards one’s infant. Methods: Women who participated in a four month health-checkup program in Aichi Prefecture, Japan (n = 6590) were asked to a complete a questionnaire that included infertility treatment history, perception of infant crying, maternal–infant bonding impairment assessed by the Mother to Infant Bonding Scale Japanese version, and abusive behavior towards one’s infant. Outcomes were dichotomized, and a conditional logistic regression was applied, using the propensity score match for infertility treatment exposure adjusted for known covariates. Results: A total of 690 participants (11.1%) reported infertility treatment history, and 625 cases were matched. We found that mothers with infertility treatment history were 1.36 times more likely to perceive a higher frequency of infant crying (95% confidence interval (CI):1.05–1.78), but no association with maternal–infant bonding impairment (odds ratio (OR): 1.18; 95% CI: 0.81–1.72) and abusive behavior towards the infant (OR: 0.82; 95% CI: 0.49–1.36). Conclusions: Infertility treatment may be associated with the perception of a higher frequency of infant crying, but it is not associated with bonding impairment and abusive behavior. Further longitudinal study is needed to replicate the findings.

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Child Maltreatment Among Singletons and Multiple Births in Japan: A Population-Based Study

Cited by 6 publications

References 23 publications

The New West Japan Twins and Higher Order Multiple Births Registry

The New West Japan Twins and Higher Order Multiple Births Registry

Genetic Vulnerability to Experiencing Child Maltreatment

Association of Infertility Treatment with Perception of Infant Crying, Bonding Impairment and Abusive Behavior towards One’s Infant: A Propensity-Score Matched Analysis

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