the prevalence of asthma remains difficult to determine with precision with no absolute or gold standard for diagnosis. international study of asthma and allergies in childhood (isaac) developed video questionnaire for epidemiological studies with less reliance on understanding written asthma questionnaire. the aim of this research was to determine the agreement between the isaac written and vi...

introduction allergic rhinitis, like other allergic diseases, is one of the most common disorders during childhood; this study was conducted to assess and compare the prevalence and severity of allergic rhinitis in children and adolescents living in kurdistan province. the study was aimed to provide a ground for the identification of likely causes and risk factors of this disorder. materials an...

introduction: international study on asthma was conducted to study the prevalence of asthma symptoms among 13-14 year old children using written and video questionnaires during the early 90's. the aim of the present study (isaac) was to evaluate the agreement between the two questionnaires which were self-completed by the children. methods: this study, which was a part of the third phase o...

a study was done about non-participation during phase iii of the international study of asthma and allergy in childhood (isaac iii) in valencia to determine whether the non-response rate significantly affected the results obtained in valencia. of the schools selected to participate in isaac iii, 13.3% denied not to, the main reason being they were already participated in a similar study. the is...

A study was done about non-participation during Phase III of the International Study of Asthma and Allergy in Childhood (ISAAC III) in Valencia to determine whether the non-response rate significantly affected the results obtained in Valencia. Of the schools selected to participate in ISAAC III, 13.3% denied not to, the main reason being they were already participated in a similar study. The IS...

Methods Twenty-seven teenagers with asthma detected through the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire answered the ISAAC rhinitis module and underwent spirometry, FeNO measurement and evaluation of QOL through Peadiatric Asthma Quality of Life Questionnaire (PAQLQ). Student t test and Kolmogorov – Smirnov test were applied for means comparison; associati...

OBJECTIVE To estimate the distribution of asthma severity in a population-based sample of children from Salvador, Brazil. METHODS An epidemiologically oriented questionnaire (International Study of Asthma and Allergies in Childhood, ISAAC) and a questionnaire based on criteria used in clinical practice (The Global Initiative for Asthma, GINA) were administered simultaneously to 417 children a...

BACKGROUND Instruments for field diagnosis of eczema are increasingly used, and it is essential to understand specific limitations to make best use of their strengths. Our objective was to assess the validity of ISAAC and UK Working Party criteria for field diagnosis of eczema in children. METHODS We performed a cohort study in urban Brazil. Parents/guardians of 1,419 children answered ISAAC ...

The aim of this study was to determine whether there are regional differences in the prevalence of childhood asthma in Finland. A secondary objective was to assess the concordance between a written and a video questionnaire on asthma symptoms. In 1994-1995, the self-reported prevalence of asthma symptoms in four regions of Finland was studied among 11,607 schoolchildren aged 13-14 yrs, as part ...