Search results for "Adolescent"

Genetic and environmental effects on body mass index during adolescence: a prospective study among Finnish twins

2009

Objective: To study genetic and environmental factors affecting body mass index (BMI) and BMI phenotypic correlations across adolescence. Design: Prospective, population-based, twin cohort study. Participants and methods: We used twin modeling in 2413 monozygotic and same-sex and opposite-sex dizygotic Finnish twin pairs born in 1983–1987 and assessed using self-report questionnaires at 11–12, 14 and 17 years of age. Results: Heritability of BMI was estimated to be 0.58–0.69 among 11–12- and 14-year-old boys and girls, 0.83 among 17-year-old boys and 0.74 among 17-year-old girls. Common environmental effects shared by siblings were 0.15–0.24 among 11–12- and 14-year-old boys and girls but n…

Childhood adversity, bonding and family functioning – is there a specific association with borderline personality disorder in adolescents?

2014

Objective: Despite growing evidence on risk-factors of borderline personality disorder (BPD) in adults, there is a paucity of research on such specific characteristics of BPD in youth. Furthermore, studies on adolescence BPD in clinical setting are still rare. This study aimed to investigate adverse childhood experiences, parental bonding and family functioning in a sample of female adolescent inpatients with BPD, and to compare them with a clinical control group with mixed psychiatric diagnoses. Method: A consecutive sample of 91 female adolescents inpatients (ages 12-18 years) was recruited within a psychiatric university hospital. BPD was assessed using the Structured Clinical Interview …

Overview of methods used to evaluate the adequacy of nutrient intakes for individuals and populations

2009

The objective of the present paper is to review the methods of measuring micronutrient intake adequacy for individuals and for populations in order to ascertain best practice. A systematic review was conducted to locate studies on the methodological aspects of measuring nutrient adequacy. The results showed that for individuals, qualitative methods (to find probability of adequacy) and quantitative methods (to find confidence of adequacy) have been proposed for micronutrients where there is enough data to set an average nutrient requirement (ANR). If micronutrients do not have ANR, an adequate intake (AI) is often defined and can be used to assess adequacy, provided the distribution of dail…

Socialization and Self‐Development: Channeling, Selection, Adjustment, and Reflection

2004

Encuesta sobre hábitos higiénicos orales en la población adolescente de la Comunidad Valenciana (2004)

2006

espanolIntroduccion: (fundamento y objetivo): Coincidiendo con el estudio epidemiologico de la Comunidad Valenciana 2004, se ha realizado una encuesta de habitos para valorar la evolucion en el periodo 1998-2004. Pacientes y metodo: La encuesta fue contestada por una muestra seleccionada al azar de 478 escolares de 12 anos y 401 de 15-16 anos. Resultados: El cepillado diario mas de una vez al dia fue realizado por el 52,3% de los ninos y una vez al dia por el 27,3%. Un 3% no se cepilla nunca y un 15,7% lo hace de vez en cuando. Un 51,4% ha ido al dentista en los ultimos seis meses, un 20,1% lo hizo entre los seis meses y el ano, y el 7,6% no ha ido nunca al dentista. El 56,7% ha hecho enjua…

Topical Fluoride for Preventing Dental Caries in Children and Adolescents

2012

The use of topically applied fluoride has been widely researched as a means to reduce the risk of dental caries in conjunction with other treatment modalities (mechanical oral hygiene, dietary control, antimicrobial intervention, pit and fissure sealants). There is overwhelming evidence that reports not only the significance and importance of the use of fluoride as a caries-preventive agent, but also how safe fluoride application is when used appropriately, particularly in higher risk individuals and populations. This paper reviews the caries-protective benefits of topical fluoride application in children and adolescents, with an emphasis on the clinical efficacy and safety of the vehicles …

Parenting Styles and Internet Use

2017

The Internet has become the most popular way for young people to communicate with one another. Recent data indicate that 95% of students have Internet access. This study examined the links between Internet use and the parenting styles that shape parent-child interactions. Empirical analysis showed that Internet use accounts for the majority of adolescents' leisure time. The neglecting parenting style has the strongest relationship with addictive Internet use by adolescent girls and boys. For boys, addictive Internet use is also related to a combination of different parenting styles resulting from inconsistencies and contradictions between parents.

Modular Breath Analyzer (MBA): Introduction of a Breath Analyzer Platform Based on an Innovative and Unique, Modular eNose Concept for Breath Diagnos…

2021

Exhaled breath analysis for early disease detection may provide a convenient method for painless and non-invasive diagnosis. In this work, a novel, compact and easy-to-use breath analyzer platform with a modular sensing chamber and direct breath sampling unit is presented. The developed analyzer system comprises a compact, low volume, temperature-controlled sensing chamber in three modules that can host any type of resistive gas sensor arrays. Furthermore, in this study three modular breath analyzers are explicitly tested for reproducibility in a real-life breath analysis experiment with several calibration transfer (CT) techniques using transfer samples from the experiment. The experiment …

Externalizing Behaviors and Cigarette Smoking as Predictors for Use of Illicit Drugs: A Longitudinal Study Among Finnish Adolescent Twins

2010

We examined whether externalizing problem behaviors (hyperactivity–impulsivity, aggressiveness, and inattention) predict illicit drug use independently, or whether their associations with drug use are mediated through cigarette smoking. We used a prospective longitudinal design within theFinnTwin12-17study among Finnish adolescents with baseline at age 12 and follow-up surveys at ages 14 and 17. Path models were conducted withMplusand included 1992 boys and 2123 girls. The outcome was self-reported ever use of cannabis or other illicit drugs at age 17. The predictors were: externalizing behaviors (hyperactivity–impulsivity, aggressiveness, and inattention) assessed by teachers and parents (…

First-Episode Psychosis Patients Who Deteriorated in the Premorbid Period Do Not Have Higher Polygenic Risk Scores Than Others: A Cluster Analysis of…

2023

Abstract Cluster studies identified a subgroup of patients with psychosis whose premorbid adjustment deteriorates before the onset, which may reflect variation in genetic influence. However, other studies reported a complex relationship between distinctive patterns of cannabis use and cognitive and premorbid impairment that is worthy of consideration. We examined whether: (1) premorbid social functioning (PSF) and premorbid academic functioning (PAF) in childhood and adolescence and current intellectual quotient (IQ) define different clusters in 802 first-episode of psychosis (FEP) patients; resulting clusters vary in (2) polygenic risk scores (PRSs) for schizophrenia (SCZ_PRS), bipolar dis…