PubMed · 7604870
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S K Nord. 1995. Crossroads.. https://doi.org/10.1097/00000446-199507000-00032
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OBJECTIVE: To determine whether certain characteristics of dogs offered for adoption are associated with successful adoption. DESIGN: Retrospective cohort study. ANIMALS: 1,468 relinquished dogs offered for adoption at a local humane society. PROCEDURE: Data regarding dogs offered for adoption were obtained from surveys completed by previous owners. Data were analyzed by use of bivariate statistics and multivariable logistic regression. RESULTS: Of dogs offered for adoption, 1,073 were successfully adopted, 239 were not adopted, and 157 were returned to the shelter after adoption. Terrier, hound, toy, and nonsporting breeds were found to be significantly associated with successful adoption (P < 0.05, chi 2 analysis). Certain coat colors (gold, gray, and white), small size, and history of an indoor environment were also significant predictors of successful adoption. The correlation coefficient (0.048) indicated that only a small percentage of variance in adoption success could be explained by the multiple logistic regression model. CLINICAL IMPLICATIONS: Animal shelter managers with limited kennel capacity may wish to periodically use surveys to determine whether the type of dog being offered to the public reflects the type of dog the public will adopt.
Children exposed in utero to cocaine are at risk for long-term neurobehavioral damage not just because of the drug itself; but also because of clustering of other health determinants, including low socioeconomic status, low maternal education, and maternal addiction, to mention a few. One methodologic approach to separate the direct neurotoxic effects of cocaine from these synergistic insults is to follow up a cohort of children exposed in utero to cocaine and given up for adoption to middle-upper class families. The Toronto Adoption Study, supported by Health Canada, has proven the direct neurotoxic effects of cocaine on IQ and language. These effects are mild to moderate as compared to those measured in children exposed in utero to cocaine and reared by their natural mothers.
While an association between antisocial personality disorder (APD) and substance use disorder (SUD) has been frequently observed, the causes of the comorbidity remain unclear. Adoption and twin studies have found evidence of both genetic and environmental influences in APD and SUD. Therefore, comorbidity between APD and SUD may be the result of shared genetic influences, shared environmental influences, or a combination of the two. However, only a limited number of adoption and twin studies have addressed this issue and the results have not been conclusive. In future studies, a distinction should be made between alcohol and drug abuse and between juvenile and adult APD symptoms. Twin samples of adequate size would allow use of structural equation analytical methods for estimation of the relative magnitude of genetic and environmental influences shared between the two conditions, as well as influences contributing to each specifically. Results would be highly relevant for the clinical setting as well as for efforts to identify the genes involved in either trait.