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Introduction: Numerous studies have found that exposure to violence at home is a risk factor for child-to-parent violence. However, most of the available studies do not delimit a time frame for exposure to violence. This aspect is fundamental to differentiating lagged effects (compensation) from simultaneous effects (reciprocal). The purpose of this study is to clarify the relationship between lagged (before the age of 10) and simultaneous (last year) exposure to violence at home (direct victimization: parent-to-child violence and vicarious victimization: exposure to violence between parents) and child-to-parent violence, the possible differential reactive or instrumental motivation of these relationships and whether they differ based on the gender of children and parents. Method: The sample comprised 1,734 Spanish adolescents who lived with both parents (57.3% girls), aged between 13 and 17 years. The instruments used were the Child-to-Parent Violence Questionnaire and the Violence Exposure Scale. Results: Positive and significant relationships were found between child-to-parent violence and exposure to violence at home both during childhood and during the last year; however, the relationships were stronger in the latter. The most important predictors were direct parental victimization during the last year. Boys exerted more reactive violence toward the father concerning exposure to violence by the father toward the mother during the last year. In the case of girls, violence toward both father and mother is more reactive to most victimization experiences. Conclusions: The findings highlight the need to intervene in family contexts of violence to prevent child-to-parent violence.

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INTRODUCTION: There is a shortage of data on intimate partner and interpersonal violence in sub-Saharan Africa. We, therefore, sought to characterize patterns of sex-based risk of in-home interpersonal violence in Malawi. METHODS: We performed a retrospective analysis of the Kamuzu Central Hospital Trauma Registry data from 2009 to 2017 on adult patients presenting the emergency room following assault. Data variables collected include basic demographics, injury characteristics, and outcomes. We performed a bivariate analysis for covariates based on sex and Poisson regression analysis to estimate the risk of domestic violence and sex-based mortality. RESULTS: The in-home assault interpersonal violence was 37.1% (n = 10,854) of the total assault cohort and 37.4% (n = 4056) were female. Women were more likely to be assaulted at home (n = 4065, 69.6%)compared to men. The overall prevalence of in-home interpersonal violence over eight years was 9.09%, with the prevalence in men and women being 7.85 and 12.38%, respectively. Women injured following in-home interpersonal violence assaults were less severely injured. Women were more likely to be injured following slaps, punches, or kicks (n = 950, 41.2%) and men were more likely to be injured by an object, 41.0% with a blunt object (n = 1658) and 37.9% by a knife or another sharp object (n = 1532). For patients experiencing in-home interpersonal violence, overall mortality is 1.8% and 0.5% for men and women, respectively (p < 0.001). After controlling for covariates, the relative risk for In-home interpersonal violence was 2.25 (p < 0.001) times higher for women. Still, men had a 3.3 times risk of mortality following in-home interpersonal violence (p < 0.001). CONCLUSION: Interpersonal violence is a global problem. In Malawi, women are more likely to be victims of in-home interpersonal violence. However, men are more likely to die following in-home interpersonal violence. Prevalence of in-home interpersonal violence is likely an underestimation.

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RESUMEN Introducción: La adolescencia responde a un periodo de madurez y ajuste al mundo adulto, por ello, está influida por el contexto social y familiar, así como por las etapas previas de desarrollo. El objetivo de la presente investigación fue determinar los factores asociados a la violencia contra los adolescentes en su hogar en el Perú. Métodos. Se realizó un análisis secundario de la Encuesta Nacional de Relaciones Sociales 2015. La muestra fue de 1491 adolescentes entre los 12 a 17 años de edad. Se estimaron las razones de prevalencia (RP) crudas y ajustadas (RPa) usando la regresión de Poisson con varianza robusta. Resultados. Se encontró que las mujeres adolescentes (RPa: 1,4; IC 95%: 1,17-1,68) y los adolescentes que viven en hogares donde hay continuas peleas o discusiones entre los padres o los adultos que ahí viven (RPa: 2,75; IC 95%: 2,11-3,57) tienen un mayor riesgo de violencia. Conclusiones . Las mujeres y aquellos adolescentes en cuyas familias hay continuas discusiones entre los padres o adultos tienen un mayor riesgo de sufrir violencia en el hogar.

ABSTRACT Background: Adolescence responds to a period of maturity and adjustment to the adult world; therefore, it is influenced by the social and family context, as well as by the previous stages of development. The objective of the present investigation was to determine the factors associated with violence against adolescents at home in Peru. Methods. A secondary analysis of the National Survey of Social Relations 2015 was carried out. The sample was of 1491 adolescents between 12 to 17 years old. Raw (PR) and adjusted (PRa) prevalence ratios using Poisson regression with robust variance were estimated. Results . It was found that adolescent women (PRa: 1.4; 95% CI: 1.17-1.68) and adolescents who live in homes where there are continuous fights or arguments between parents or adults who live there (PRa: 2.75; 95% CI: 2.11-3.57) have a higher risk of violence. Conclusions. Women and adolescents who live in families where there are continuous arguments between parents or adults have high risk of domestic violence.