43 research outputs found
The Effect of Joint-Child-Custody Legislation on the Child-Support Receipt of Single Mothers
Due to the preponderance of single mothers on public assistance, delinquent child support has been a contentious political issue in the U.S. for over 30 years. We examine whether joint-child-custody reform affects the child- support receipt of single mothers. We use variation in the timing of joint-custody reforms across states to identify the effect of joint custody on the child-support receipt of single mothers. Joint-custody enactment raises the probability of receiving child support for all single mothers by six percent. However, the effect on all single mothers is driven by the effect on divorced mothers since separated and never-married mothers are unaffected by joint-custody reform. We conclude joint-custody reform confers the most benefit on divorced mothers and their children, particularly those who do not receive public assistance.child support, joint custody, child-custody laws, child-support enforcement
Child-Custody Reform and Marriage-Specific Investment in Children
Research on child custody primarily focuses on the well-being of children following divorce. We extend this literature by examining how the prospect of joint child custody affects marriage-specific investment in children’s private-school education. Variation in the timing of joint-custody reforms across states proxies for the prospect of joint child custody and provides a natural experiment framework with which to examine marriage-specific investment in children. The probability of children’s private school attendance declines by 13 percent in states that adopt joint-custody laws. The effects of joint-custody reform are larger in states that have property-division laws that consistently favor one parent over the other. The results are largely robust for subsamples partitioned by socioeconomic status
Child-Custody Reform and Marriage-Specific Investment in Children
Research on child custody primarily focuses on the well-being of children following divorce. We extend this literature by examining how the prospect of joint child custody affects marriage-specific investment in children’s private-school education. Variation in the timing of joint-custody reforms across states proxies for the prospect of joint child custody and provides a natural experiment framework with which to examine marriage-specific investment in children. The probability of children’s private school attendance declines by 13 percent in states that adopt joint-custody laws. The effects of joint-custody reform are larger in states that have property-division laws that consistently favor one parent over the other. The results are largely robust for subsamples partitioned by socioeconomic status
The Effect of Joint-Child-Custody Legislation on the Child-Support Receipt of Single Mothers
Due to the preponderance of single mothers on public assistance, delinquent child support has been a contentious political issue in the U.S. for over 30 years. We examine whether joint-child-custody reform affects the child- support receipt of single mothers. We use variation in the timing of joint-custody reforms across states to identify the effect of joint custody on the child-support receipt of single mothers. Joint-custody enactment raises the probability of receiving child support for all single mothers by six percent. However, the effect on all single mothers is driven by the effect on divorced mothers since separated and never-married mothers are unaffected by joint-custody reform. We conclude joint-custody reform confers the most benefit on divorced mothers and their children, particularly those who do not receive public assistance
The Effect of Joint-Child-Custody Legislation on the Child-Support Receipt of Single Mothers
Due to the preponderance of single mothers on public assistance, delinquent child support has been a contentious political issue in the U.S. for over 30 years. We examine whether joint-child-custody reform affects the child- support receipt of single mothers. We use variation in the timing of joint-custody reforms across states to identify the effect of joint custody on the child-support receipt of single mothers. Joint-custody enactment raises the probability of receiving child support for all single mothers by six percent. However, the effect on all single mothers is driven by the effect on divorced mothers since separated and never-married mothers are unaffected by joint-custody reform. We conclude joint-custody reform confers the most benefit on divorced mothers and their children, particularly those who do not receive public assistance
Inverse association of colorectal cancer prevalence to serum levels of perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) in a large Appalachian population
Background
Perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS) are persistent environmental contaminants that affect metabolic regulation, inflammation, and other factors implicated in the development and progression of colorectal cancer (CRC). However, the link between these compounds and CRC remains unknown. In this cross-sectional study, we investigated the association of CRC diagnosis to PFOA and PFOS blood levels in a large Appalachian population. Methods
Participants were 47,359 adults ≥ 21 years of age and residing in six PFOA-contaminated water districts in the mid-Ohio Valley (N = 47,151 cancer-free adults, 208 cases of primary CRC). All participants completed a comprehensive health survey between 2005 and 2006; serum levels of PFOA, PFOS, and a range of other blood markers were also measured. Medical history was assessed via self report and cancer diagnosis confirmed via chart review. Results
CRC showed a strong inverse, dose–response association with PFOS serum levels (odds ratio (OR) adjusted for potential confounders = 0.2, 95% confidence interval (CI) 0.2,0.3) for highest vs. lowest quartile of PFOS, P-trend \u3c 0.00001) and a significant, but more modest inverse association with PFOA (adjusted OR = 0.6 (CI 0.4, 0.9) for highest vs. lowest quartile, P-trend = 0.001). These inverse associations were stronger in those diagnosed within the previous 6 years and resident in the same water district for a minimum of 10–15 years preceding assessment. The relationship between PFOA and CRC was also more pronounced in men and leaner adults, and showed a stronger linear trend at lower exposure levels. Conclusions
In this large cross-sectional study, we found a strong, inverse association between PFOS and likelihood of CRC diagnosis and a significant, although more modest inverse association between PFOA and CRC. If confirmed in prospective investigations, these findings may aid in identifying new strategies for CRC prevention and treatment and inform future studies regarding mechanisms underlying CRC pathogenesis
Bullying escolar: um fenĂ´meno multifacetado
School bullying can involve children in different ways, making them play different roles, among them, victims, bullies and bully-victims. The aim of this study was to describe how bullying occurs in high social vulnerability schools of Florianópolis metropolitan area and the roles played by students in this phenomenon. Overall, 409 children and adolescents from the 3rd to 5th grades and of two public elementary schools aged 8-16 years (X = 11.14) participated in this study. As a tool, the Olweus Questionnaire adapted to the Brazilian population was used. For data analysis, descriptive statistics and inferential statistics were applied by the Mann Whitney and Kruskal Wallis tests. As for results, 29.8% of boys and 40.5% of girls reported being victims; 32.3% of boys and 24.6% of girls reported being bullies. Victims were the most willing to help a colleague who is suffering from bullying (X = 1.54; p> 0.001), even if they do not know the victims (X = 1.57; p> 0.004). Bullies are differentiated from the group that does not participate (X = 1.73) and the group of victims (X = 2.34), being those who felt less alone (x = 1.47; p> 0.001). It was concluded that the information obtained in this study is indispensable in the search for alternatives to reduce school bullying. The strengthening of relations between school and students and a better preparation of teachers and school staff are extremely necessary to try to minimize the effects of risk factors to which these children are exposed and consequently violence at school.O bullying escolar pode envolver crianças de diferentes
maneiras, fazendo com que essas assumam papéis diferenciados.
Dentre estes, tĂŞm-se vĂtimas, agressores e vĂtimas-agressoras. O
objetivo deste estudo foi descrever como ocorre o bullying em
escolas de alta vulnerabilidade social da Grande FlorianĂłpolis
e os papéis assumidos pelos alunos nesse fenômeno. Quanto ao
método, participaram 409 crianças e adolescentes do terceiro
ao quinto ano e da quarta à sexta série do ensino fundamental,
de duas escolas pĂşblicas municipais, com idades entre 8 e 16
anos (X=11,14). Como instrumento, utilizou-se o Questionário
de Olweus adaptado à população brasileira. Para a análise
dos dados, empregaram-se a estatĂstica descritiva e estatĂstica
inferencial por meio dos testes Mann Whitney e Kruskal Wallis.
Quanto aos resultados, 29,8% dos meninos e 40,5% das meninas
relataram terem sido vĂtimas; já 32,3% dos meninos e 24,6%
das meninas relataram terem sido agressores. As vĂtimas foram
as que se mostraram mais dispostas a ajudar como podem um
colega que esteja sofrendo agressĂŁo (X=1,54; p>0,001), mesmo
que não o conheçam (X=1,57; p>0,004). Em contrapartida,
os agressores se diferenciaram do grupo que nĂŁo participa
(X=1,73) e do grupo das vĂtimas (X=2,34), sendo aqueles que
menos se sentiram sozinhos (X=1,47; p>0,001). Concluiu-se
que as informações obtidas neste estudo são indispensáveis
na busca de alternativas para redução do bullying escolar. O
fortalecimento das relações entre escola e alunos, e um maior
preparo dos professores e funcionários são extremamente
necessários para tentar minimizar os efeitos dos fatores de
risco a que essas crianças estão expostas e consequentemente a
violência na escola.CAPES - Proc. nº 0815/14-4CIEC - Centro de Investigação em Estudos da Criança, IE, UMinho (UI 317 da FCT)Projeto Estratégico da FCT: UID/CED/00317/201
Antiinflammatory Therapy with Canakinumab for Atherosclerotic Disease
Background: Experimental and clinical data suggest that reducing inflammation without affecting lipid levels may reduce the risk of cardiovascular disease. Yet, the inflammatory hypothesis of atherothrombosis has remained unproved. Methods: We conducted a randomized, double-blind trial of canakinumab, a therapeutic monoclonal antibody targeting interleukin-1β, involving 10,061 patients with previous myocardial infarction and a high-sensitivity C-reactive protein level of 2 mg or more per liter. The trial compared three doses of canakinumab (50 mg, 150 mg, and 300 mg, administered subcutaneously every 3 months) with placebo. The primary efficacy end point was nonfatal myocardial infarction, nonfatal stroke, or cardiovascular death. RESULTS: At 48 months, the median reduction from baseline in the high-sensitivity C-reactive protein level was 26 percentage points greater in the group that received the 50-mg dose of canakinumab, 37 percentage points greater in the 150-mg group, and 41 percentage points greater in the 300-mg group than in the placebo group. Canakinumab did not reduce lipid levels from baseline. At a median follow-up of 3.7 years, the incidence rate for the primary end point was 4.50 events per 100 person-years in the placebo group, 4.11 events per 100 person-years in the 50-mg group, 3.86 events per 100 person-years in the 150-mg group, and 3.90 events per 100 person-years in the 300-mg group. The hazard ratios as compared with placebo were as follows: in the 50-mg group, 0.93 (95% confidence interval [CI], 0.80 to 1.07; P = 0.30); in the 150-mg group, 0.85 (95% CI, 0.74 to 0.98; P = 0.021); and in the 300-mg group, 0.86 (95% CI, 0.75 to 0.99; P = 0.031). The 150-mg dose, but not the other doses, met the prespecified multiplicity-adjusted threshold for statistical significance for the primary end point and the secondary end point that additionally included hospitalization for unstable angina that led to urgent revascularization (hazard ratio vs. placebo, 0.83; 95% CI, 0.73 to 0.95; P = 0.005). Canakinumab was associated with a higher incidence of fatal infection than was placebo. There was no significant difference in all-cause mortality (hazard ratio for all canakinumab doses vs. placebo, 0.94; 95% CI, 0.83 to 1.06; P = 0.31). Conclusions: Antiinflammatory therapy targeting the interleukin-1β innate immunity pathway with canakinumab at a dose of 150 mg every 3 months led to a significantly lower rate of recurrent cardiovascular events than placebo, independent of lipid-level lowering. (Funded by Novartis; CANTOS ClinicalTrials.gov number, NCT01327846.