Adolescent Eating Disorders Predict Psychiatric, High-Risk Behaviors and Weight Outcomes in Young Adulthood

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Abstract

To investigate whether anorexia nervosa (AN), bulimia nervosa (BN), binge eating disorder (BED), and other specified feeding and eating disorders (OSFED), including purging disorder (PD), subthreshold BN, and BED at ages 14 and 16 years, are prospectively associated with later depression, anxiety disorders, alcohol and substance use, and self-harm.

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Physical status: the use and interpretation of anthropometry. Report of a WHO Expert Committee.

of the World Health Organization World Health Organization Constitution, C Garza, G. Pradilla … (1995)

Anthropometry provides the single most portable, universally applicable, inexpensive and non-invasive technique for assessing the size, proportions, and composition of the human body. It reflects both health and nutritional status and predicts performance, health, and survival. As such, it is a valuable, but currently underused, tool for guiding public health policy and clinical decisions. This report presents the conclusions and comprehensive recommendations of a WHO Expert Committee for the present and future uses and interpretation of anthropometry. In a section that sets the technical framework for the report, the significance of anthropometric indicators and indices is explained and the principles of applied biostatistics and epidemiology that underlie their various uses are discussed. Subsequent sections provide detailed guidance on the use and interpretation of anthropometric measurements in pregnant and lactating women, newborn infants, infants and children, adolescents, overweight and thin adults, and adults aged 60 years and over. With a similar format for each section, the report assesses specific applications of anthropometry in individuals and populations for purposes of screening and for targeting and evaluating interventions. Advice on data management and analysis is offered, and methods of taking particular measurements are described. Each section also includes a discussion of the extent, reliability and universal relevance of existing reference data. An extensive series of reference data recommended by the Expert Committee and not widely distributed by WHO hitherto is included in an annex.

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Cohort Profile: The ‘Children of the 90s’—the index offspring of the Avon Longitudinal Study of Parents and Children

Andy Boyd, Jean Golding, John Macleod … (2012)

The Avon Longitudinal Study of Parents and Children (ALSPAC) is a transgenerational prospective observational study investigating influences on health and development across the life course. It considers multiple genetic, epigenetic, biological, psychological, social and other environmental exposures in relation to a similarly diverse range of health, social and developmental outcomes. Recruitment sought to enrol pregnant women in the Bristol area of the UK during 1990–92; this was extended to include additional children eligible using the original enrolment definition up to the age of 18 years. The children from 14 541 pregnancies were recruited in 1990–92, increasing to 15 247 pregnancies by the age of 18 years. This cohort profile describes the index children of these pregnancies. Follow-up includes 59 questionnaires (4 weeks–18 years of age) and 9 clinical assessment visits (7–17 years of age). The resource comprises a wide range of phenotypic and environmental measures in addition to biological samples, genetic (DNA on 11 343 children, genome-wide data on 8365 children, complete genome sequencing on 2000 children) and epigenetic (methylation sampling on 1000 children) information and linkage to health and administrative records. Data access is described in this article and is currently set up as a supported access resource. To date, over 700 peer-reviewed articles have been published using ALSPAC data.

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Mortality rates in patients with anorexia nervosa and other eating disorders. A meta-analysis of 36 studies.

Jon Arcelus, Alex J Mitchell, Jackie Wales … (2011)

Morbidity and mortality rates in patients with eating disorders are thought to be high, but exact rates remain to be clarified. To systematically compile and analyze the mortality rates in individuals with anorexia nervosa (AN), bulimia nervosa (BN), and eating disorder not otherwise specified (EDNOS). A systematic literature search, appraisal, and meta-analysis were conducted of the MEDLINE/PubMed, PsycINFO, and Embase databases and 4 full-text collections (ie, ScienceDirect, Ingenta Select, Ovid, and Wiley-Blackwell Interscience). English-language, peer-reviewed articles published between January 1, 1966, and September 30, 2010, that reported mortality rates in patients with eating disorders. Primary data were extracted as raw numbers or confidence intervals and corrected for years of observation and sample size (ie, person-years of observation). Weighted proportion meta-analysis was used to adjust for study size using the DerSimonian-Laird model to allow for heterogeneity inclusion in the analysis. From 143 potentially relevant articles, we found 36 quantitative studies with sufficient data for extraction. The studies reported outcomes of AN during 166 642 person-years, BN during 32 798 person-years, and EDNOS during 22 644 person-years. The weighted mortality rates (ie, deaths per 1000 person-years) were 5.1 for AN, 1.7 for BN, and 3.3 for EDNOS. The standardized mortality ratios were 5.86 for AN, 1.93 for BN, and 1.92 for EDNOS. One in 5 individuals with AN who died had committed suicide. Individuals with eating disorders have significantly elevated mortality rates, with the highest rates occurring in those with AN. The mortality rates for BN and EDNOS are similar. The study found age at assessment to be a significant predictor of mortality for patients with AN. Further research is needed to identify predictors of mortality in patients with BN and EDNOS.