Evaluation of Lung Function Questionnaire in Identifying Airflow Obstruction
Die vorliegende Arbeit widmet sich den Zusammenhang zwischen Visualisierungen und kulturellen Deutungsmustern im Kulturbezogenen Lernprozess. Es wurde für die empirischen Untersuchung folgende Fragen gestellt: Gibt es eigentlich einen Zusammenhang zwischen Visualisierungen und kulturellen Deutungsmustern im kulturbezogenen Lernprozess? Können Visualisierungen den kulturbezogenen Lernprozess überhaupt steuern? Welche Lernprozesse können das kulturbezogene Lernen stärker fördern? Dabei wurde ein Set von Fragebögen entwickelt, die die Erweiterung und Veränderung der eigenkulturellen Deutungsmuster der ProbandInnen untersuchen. Dafür waren etwa 20 Studierenden im dritten Studienjahr der Pädagogischen Fakultät der Ain Shams Universität aus dem Jahr 2010 verantwortlich. Die Untersuchung wurde in drei Phasen sturukturiert. Die erste Untersuchungsphase hat das Hintergrundwissen der ProbandInnen dargestellt. In der zweiten Untersuchungspahse wurden die ProbandInnen motiviert, die angefertigten Visualisierungen kritisch zu reflektieren, indem sie sich mit gezielteren Fragen nach den topologischen und chronologischen Deutungsmustern in den Visualisierungen auseinandergesetzt haben. Die Analyse des zweiten Fragebogens hat gezeigt, dass die angefertigten Visualisierungen zum besseren Verstehen des literarischen Textes geführt haben. Allerdings zeigt die kritische Reflexion der ProbandInnen, dass die ProbandInnen im Rahmen der Deutungsmuster ihres eigenkulturellen Erfahrungsraums sich bewegt haben. Aufgrund der Ergebnisse der zweiten Untersuchungsphase wurden der Fragebogen der dritten Untersuchungsphase entwickelt. In dieser Phase wurden weitere visualisierte Materialien bereitgestellt, die den ProbandInnen zu Auswahl standen. Durch das neue Bildmaterial und die damit verbundenen Fragen im dritten Fragebogen konnten die ProbandInnen die topologischen Deutungsmuster der Zielkultur abrufen, umstrukturieren sowie verändern.;
Abstract
The present study was conducted in The National Center of Chest Diseases of Imbaba. Two groups were chosen: the first group included fifty known COPD patients, diagnosed according to GOLD 2014, on their medications and the second group was fifty apparently healthy smokers.
Subjects were all males from EL-Giza governorate in the period between January 2014 and July 2014.
The aim of this study was to validate the use of the five items of modified Lung Function Questionnaire to detect those appropriate for spirometry testing for airflow obstruction.
Exclusion criteria: history of atopy, younger than forty, patients with acute respiratory illness, patients with known (non-respiratory) disease causing dyspnea and history of concomitant lung diseases like sarcoidosis.
All subjects were submitted to:
Full medical history taking.
Thorough clinical examination.
The weight in Kg, the height in Cm and BMI.
Radiological examinations: Plain postero-anterior chest X-ray was done to exclude any chest lesion if present.
Participants answered the questions covering demographics and symptoms by Arabic translation of modified Lung Function Questionnaire which is five questions with scoring system from five to twenty five according to research developed by Yawn and colleagues in 2010.
Simple spirometry, prebronchodilator and postbronchodilator, according to GOLD guidelines 2014. Pulmonary function tests were performed using smart pft USB, medical equipment Europe Dr.-Georg- Schaefer-Str. 1497762 Hammelburg, Germany.
Results were tabulated and statistically analyzed:
• The prevalence of COPD in the studied sample (50 smokers) was 30% slightly higher than known numbers and it cannot be generalized because the sample was small and may be biased by convenient sampling.
• There was significant difference between the fifteen newly diagnosed COPD cases and the thirty five healthy smokers as regard: weight, BMI, prebronchodilator FEV1/FVC, MEF25-75 and MMRC dyspnea scale. Also comparison between them considering how they answered the modified LFQ, there was statistically significant difference as regard the first, second and third questions.
• Logistic regression of the five items of the modified LFQ found that the third question (shortness of breath) was the only item which significantly predict airway obstruction (p-value = 0.04). Also the total score significantly predicted airway obstruction (p-value = 0.01).
• The ROC curve for the modified LFQ found that at cut point 13 (LFQ score = 13) the sample had sensitivity 73.5%, specificity 73.3%, positive predictive value 86.2% and negative predictive value 55% with fairly high area under the ROC curve 0.79%.
• The ROC curve for every question of the modified LFQ alone showed that the first and third questions (cough and dyspnea respectively) alone already related significantly with the diagnoses of COPD with AUC of 0.77% and 0.75% respectively.
Subjects were all males from EL-Giza governorate in the period between January 2014 and July 2014.
The aim of this study was to validate the use of the five items of modified Lung Function Questionnaire to detect those appropriate for spirometry testing for airflow obstruction.
Exclusion criteria: history of atopy, younger than forty, patients with acute respiratory illness, patients with known (non-respiratory) disease causing dyspnea and history of concomitant lung diseases like sarcoidosis.
All subjects were submitted to:
Full medical history taking.
Thorough clinical examination.
The weight in Kg, the height in Cm and BMI.
Radiological examinations: Plain postero-anterior chest X-ray was done to exclude any chest lesion if present.
Participants answered the questions covering demographics and symptoms by Arabic translation of modified Lung Function Questionnaire which is five questions with scoring system from five to twenty five according to research developed by Yawn and colleagues in 2010.
Simple spirometry, prebronchodilator and postbronchodilator, according to GOLD guidelines 2014. Pulmonary function tests were performed using smart pft USB, medical equipment Europe Dr.-Georg- Schaefer-Str. 1497762 Hammelburg, Germany.
Results were tabulated and statistically analyzed:
• The prevalence of COPD in the studied sample (50 smokers) was 30% slightly higher than known numbers and it cannot be generalized because the sample was small and may be biased by convenient sampling.
• There was significant difference between the fifteen newly diagnosed COPD cases and the thirty five healthy smokers as regard: weight, BMI, prebronchodilator FEV1/FVC, MEF25-75 and MMRC dyspnea scale. Also comparison between them considering how they answered the modified LFQ, there was statistically significant difference as regard the first, second and third questions.
• Logistic regression of the five items of the modified LFQ found that the third question (shortness of breath) was the only item which significantly predict airway obstruction (p-value = 0.04). Also the total score significantly predicted airway obstruction (p-value = 0.01).
• The ROC curve for the modified LFQ found that at cut point 13 (LFQ score = 13) the sample had sensitivity 73.5%, specificity 73.3%, positive predictive value 86.2% and negative predictive value 55% with fairly high area under the ROC curve 0.79%.
• The ROC curve for every question of the modified LFQ alone showed that the first and third questions (cough and dyspnea respectively) alone already related significantly with the diagnoses of COPD with AUC of 0.77% and 0.75% respectively.
Other data
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