Search results for " adolescent"
showing 10 items of 621 documents
Non-specific bronchial hyper-responsiveness in children with allergic rhinitis: relationship with the atopic status
2003
An increased prevalence of bronchial hyper-responsiveness (BHR) has been demonstrated in children from a general population, and in non-asthmatic adults with allergic rhinitis. Thus, also children with allergic rhinitis are expected to be at higher risk of BHR. We evaluated the prevalence of BHR in a sample of non-asthmatic children with allergic rhinitis by means of the methacholine (Mch) bronchial challenge, and by monitorizing the airway patency using the daily peak expiratory flow variability (PEFv). Fifty-one children (ranged 6-15 years of age) with allergic rhinitis, ascertained by skin prick test to inhalant allergens, underwent a 14-day peak expiratory flow monitoring, and a Mch bro…
Association of Blattella germanica sensitization with atopic diseases in pediatric allergic patients
2011
The extent to which the sensitization to the German cockroach Blattella germanica (BG) affects onset/presence of rhinoconjunctivitis (RC) in children is unknown.
Proportional Venn diagram and determinants of allergic respiratory diseases in Italian adolescents
2011
Large variations in prevalence of atopy and allergic diseases are reported worldwide in children, but in epidemiological studies the use of skin prick tests (SPT) and spirometry along with questionnaires is not common in the Mediterranean Area. The present work was aimed at evaluating the prevalence of current asthma (CA), rhinoconjunctivitis (RC), and eczema (E), with atopy and respiratory function, and the role of risk factors for allergic respiratory diseases. A total of 2150 Italian schoolchildren were cross-sectionally investigated through respiratory questionnaire, SPT, and spirometry. A proportional Venn diagram quantified the distribution of CA, RC, and E, stratifying for allergic s…
Association of asthma with extra-respiratory symptoms in schoolchildren: two cross-sectional studies 6 years apart
2002
Epidemiological information on symptoms affecting extra-respiratory organs and apparatuses in asthmatic children is scarce. The aim of this study therefore was to evaluate, at a population level, if and what extra-respiratory symptoms are associated with asthma. Two questionnaire-based, cross-sectional surveys were carried out on 1,262 students (651 males; mean age 9.57 years, age-range 6-14 years) in 1992 and on 1,210 students (639 males; mean age 9.02 years, age-range 6-14 years) in 1998, from two elementary and two junior high schools in Rome, Italy. Questionnaires included queries about asthma and its risk factors and extra-respiratory symptoms (headache, restlessness, sleep disturbance…
Child and adolescent time use : a cross-national study
2021
Objective.- This study examined the differences in child and adolescent time use across the following three countries with distinct policy and cultural regimes: Finland, Spain, and the United Kingdom. Background.- Studying children's time use cross-nationally is urgent to better understand how societal contexts influence children's daily lives in ways that affect their future lifestyles, development, and identity formation. Yet previous studies have largely omitted this important question. Method.- The study used 2009 to 015 time-diary data on children aged 10 to 17 from Finland, Spain, and the United Kingdom (N = 3,491). Multivariate linear regression models examined (a) between-country an…
The Structure and Correlates of a Measure of Prosocial Moral Reasoning in Adolescents from Spain
2013
Examined the structure and correlates of a measure of prosocial moral reasoning in a sample of young and middle-aged adolescents. 1556 students (53% male, M age = 13.12, SD = .87) from Valencia, Spain completed paper-and-pencil measures of prosocial moral reasoning (PROM), empathy, prosocial behaviors, and aggression. As expected, a series of confirmatory factor and structural equation modeling analyses revealed a four-factor solution of the PROM to have the best fit (as compared to alternative models) among Spanish youth (across gender and grade). Moreover, higher level and other-oriented forms of prosocial moral reasoning were generally positively related to empathy and prosocial behavior…
Analysis of demographic, psychological and cultural aspects associated with the practice of sexting in Mexican and Spanish adolescents
2021
Abstract Sexting is an increasingly frequent phenomenon among adolescents, and it involves risky behaviors such as sextortion or even grooming. This study aims to analyze demographic, psychological, and cultural variables that may explain the nature of this phenomenon. The sample consisted of 471 adolescents from 12 to 18 years old from two countries, Spain and Mexico, with dissimilar levels of gender inequality. Results highlight important differences in sexting behavior between the two countries. We have found higher levels of sexting behaviors in Mexican adolescents (41.5 %) than in Spanish adolescents (24.6 %) as well as an earlier start in Mexican adolescents. Moreover, adolescents in …
What Does It Mean to Be Popular in Spain? Mixed-Method Analysis of Popularity as Perceived by Teenagers and Their Teachers
2019
A great part of the research in adolescent popularity is based on sociometric methods, not always distinguishing between social preference (acceptance or likeability) and perceived popularity (visibility or salience), which has practical and theoretical implications. The aim of this work was to analyze the features that a sample of 406 Spanish adolescents (53.2% girls, M = 16.76 years) and their teachers (n = 26, 50% women) associated with perceived popularity. The data analysis established three main themes that categorize perceived popularity: behaviors, developmental traits, and other resources, which include both peer-valued and not valued characteristics. Qualitative and quantitative c…
Cypress pollen: An unexpected major sensitizing agent in different regions of Italy
2014
In this multicenter survey, we assessed the impact of sensitization to cypress in atopic patients in Italy and determined whether cypress pollen concentration changed over time.Allergists were required to collect the results of 100-200 consecutive skin prick tests (SPTs) performed during 2012. Seasonal symptoms were also recorded, as were airborne cypress pollen concentrations (data from the Italian Aerobiology Association) in 1998-2000 and 2010-2012.We examined 2258 atopic outpatients (56% females; age, 2-84 years) sensitized to at least 1 of the aeroallergens tested (Dermatophagoides species, grass, pellitory, olive, cypress, birch, Alternaria tenuis, and dog and cat dander). We found tha…
A functional variant of the serotonin transporter gene (SLC6A4) moderates impulsive choice in attention-deficit/hyperactivity disorder boys and sibli…
2011
Item does not contain fulltext BACKGROUND: Impulsive drive for immediate reward (IDIR) and delay aversion are dissociable elements of the preference for immediate over delayed rewards seen in attention-deficit/hyperactivity disorder (ADHD). We hypothesized that IDIR would be associated with dopamine regulating genes and delay aversion would be associated with serotonin-regulating genes. METHODS: Impulsive drive for immediate reward and delay aversion were measured in 459 male children and adolescents (328 ADHD and 131 unaffected siblings) with a laboratory choice task. The sample was genotyped for the 5HTT (SLC6A4) promoter serotonin-transporter-linked polymorphic region polymorphism and a …