Prediction of the incidence and persistence of allergic rhinitis in adolescence: a prospective cohort study.

Background: Predictive models have rarely been used in allergy research and practice. However, they might support physicians in advising patients.

Objective: The aim of this study was to create predictive models for the incidence and persistence of allergic rhinitis (AR) during adolescence.

Exhaled breath condensate nitrite--methodological problems of sample collection.

Background: Exhaled breath condensate (EBC) analysis is a promising new method to monitor airway inflammation, however there are still multiple open methodological questions. The purpose of this study was therefore to investigate methodological influences on nitrite in EBC (surface contamination, flow dependency, storage time and inter- and within day variability).

Material/methods: EBC samples of 10 healthy children, 10 healthy adults and 71 asthmatic children were collected and nitrite was analysed using the Griess reaction.

Exhaled breath condensate pH in infants and children with acute and recurrent wheezy bronchitis.

The analysis of exhaled breath condensate (EBC) is a promising new method to measure airway inflammation. So far only limited data exist about methodological issues of EBC sampling in infants and young children. We evaluated 18 children with acute wheezy bronchitis (median age 24.

Optical rhinometry: application on children and adolescents for nasal provocation tests.

Optical rhinometry is a new method that allows the direct, real time measurement of changes in swelling of the nasal mucosa by external measurement. The measurement is carried out with monochromatic near-infrared light. The change of intensity of the swelling is displayed and recorded.

Leisure time activity and new onset of wheezing during adolescence.

Asthma prevalence is increasing in adult and paediatric patients. In the present study, the association between different leisure time activities and new onset of wheezing was analysed in adolescents aged 16-18 yrs taking part in a questionnaire-based follow-up of the International Study on Asthma and Allergies in Childhood in Munich and Dresden, Germany. Of the 3,785 adolescents who took part in the follow-up (76% response), 2,910 adolescents without earlier episodes of wheezing in childhood were included in the analyses.