Children and Families Seeking Asylum in Northern Norway: Living Conditions and Mental Health

The mental health of children seeking asylum and their families is a somewhat neglected area of research. Research on refugee children and children living with adversities suggests that environmental factors are crucial in preventing mental health problems. In this study, we aim to identify central environmental conditions that affect the mental health of children living with their families at governmental asylum processing centres in northern Norway. This study has a qualitative design, and is based on 11 focus group interviews with the staff at asylum processing centres. The interviews were transcribed verbatim and analysed focusing on important risk and protective factors for mental health problems presented by the informants. The results highlighted time spent at asylum centres and the parent's mental health as the most important risk factors. Schooling, activities, general living conditions and poor economy were also seen as crucial. The findings suggest that these children are indeed vulnerable, and at high risk of developing mental health problems. Their rights are, however, open to local interpretations, and they fall between two stools; their right to proper health care, and national and international immigration policies.     

Estimation of parameters in DNA mixture analysis

In [7], a Bayesian network for analysis of mixed traces of DNA was presented using gamma distributions for modelling peak sizes in the electropherogram. It was demonstrated that the analysis was sensitive to the choice of a variance factor and hence this should be adapted to any new trace analysed. In this paper, we discuss how the variance parameter can be estimated by maximum likelihood to achieve this. The unknown proportions of DNA from each contributor can similarly be estimated by maximum likelihood jointly with the variance parameter. Furthermore, we discuss how to incorporate prior knowledge about the parameters in a Bayesian analysis. The proposed estimation methods are illustrated through a few examples of applications for calculating evidential value in casework and for mixture deconvolution.     

Identifiability and estimation of recursive max‐linear models

We address the identifiability and estimation of recursive max‐linear structural equation models represented by an edge‐weighted directed acyclic graph (DAG). Such models are generally unidentifiable and we identify the whole class of DAG s and edge weights corresponding to a given observational distribution. For estimation, standard likelihood theory cannot be applied because the corresponding families of distributions are not dominated. Given the underlying DAG, we present an estimator for the class of edge weights and show that it can be considered a generalized maximum likelihood estimator. In addition, we develop a simple method for identifying the structure of the DAG. With probability tending to one at an exponential rate with the number of observations, this method correctly identifies the class of DAGs and, similarly, exactly identifies the possible edge weights.     

Health-Related Adjustment of Adolescents in Various Postdivorce Family Structures With Main Focus on Father Custody With and Without a Stepmother

It is well established that adolescents living in father custody are more likely to be involved in antisocial behavior and substance use, as compared to adolescents living in mother custody. This study assessed whether these differences also pertain to a wider spectrum of health-related outcomes. A second aim was to investigate the role of a stepparent on adolescents' health-related adjustment. A total of 6,447 Norwegian adolescents between ages 11 and 16 participated in the study. The findings revealed that the differences between adolescents in father versus mother custody might be somewhat more comprehensive than previous studies have observed, indicating increased risks for adjustment problems among adolescents living with a single father on various health-related outcomes. Generally, a stepmother does not seem to compensate for the risks of adjustment problems, but might have a positive influence on certain health-related behaviors.     

Stable local computation with conditional Gaussian distributions

This article describes a propagation scheme for Bayesian networks with conditional Gaussian distributions that does not have the numerical weaknesses of the scheme derived in Lauritzen (Journal of the American Statistical Association 87: 1098–1108, 1992).The propagation architecture is that of Lauritzen and Spiegelhalter (Journal of the Royal Statistical Society, Series B 50: 157– 224, 1988).In addition to the means and variances provided by the previous algorithm, the new propagation scheme yields full local marginal distributions. The new scheme also handles linear deterministic relationships between continuous variables in the network specification.The computations involved in the new propagation scheme are simpler than those in the previous scheme and the method has been implemented in the most recent version of the HUGIN software.     

Lighting old age--how lighting impacts the ability to grow old in own housing, part one

A functionally optimized housing development designed to meet the demands in different phases of living (universal design) may result in the elderly living longer in their own homes. In this study a total of 165 healthy persons were included out of a total of approximately 320 persons turning 75 years of age in 2009 living in Drammen municipality. They went through a quantitative, questionnaire-based interview (including VAS and SF-36) and 20 participants were then selected for a qualitative in depth interview. The lighting conditions in the kitchen, living room, bathroom, bedroom and staircase were measured according to a simplified procedure. The overall lighting conditions were evaluated to be rather low, with means between 35 and 121 Lux, but the quantitative interviews showed that on most questions the scores were rather low, indicating that the overall thriving is good regardless of rather low lighting values.     

A model company

HUGIN Expert is a small company writing software that can be used to create expert systems, using probability in the guise of graphical models. Steffen Lauritzen describes his part in the genesis and development of the company.     

Childhood maltreatment among Norwegian drug abusers in treatment

This article reports on the investigation of the correlation between the European Addiction Severity Index (EuropASI) and the Childhood Trauma Questionnaire (CTQ) among 102 Norwegian drug abusers admitted to treatment. The aim of the study is to explore how different types and levels of childhood trauma and social and psychiatric factors, medical situation and experienced family history are interrelated. The study addresses three main questions: 1) What is the prevalence of different kinds of childhood trauma among drug abusers in treatment? 2) Does type or level of maltreatment in childhood predict specific substance abuse problems as adults and/or specific social, psychiatric and medical problems as adults? 3) Do substance abuse problems and mental health problems in the primary family predict different types and levels of childhood maltreatment? Twenty‐five per cent of the total sample was included in the high‐level trauma group and 54% in the intermediate‐level group. Females had significantly higher scores than males in all types of childhood trauma. The strongest correlations were found between childhood trauma and lifetime psychiatric problems and psychiatric status during the last 30 days before admission for treatment. More research, and especially prospective studies, is needed to clarify the importance of parents' substance abuse and psychiatric problems in childhood/adolescent compared with trauma in the client's childhood and the client's current psychiatric status.