Showing 2 results for Adeli
F Adelinejad, A Faraji, F Alipour,
Volume 16, Issue 5 (Vol 16, Special Issue 2021)
Abstract
Background and Objective: The aim of this research is validation of questionnaire of covid-19 social effects (SISQ) on Iranian students.
Methods: The current study is a descriptive-analytic validation-type study and its statistical population was consisted of students of University of Tehran who 300 of them took part in this research voluntarily. After study of content validity, exploratory and confirmatory factor analysis was used to study construct validity and Cronbach Alfa and cluster correlation coefficients were utilized to study the reliability; for further study on main variables of research, Pearson correlation and T tests were used; analyses were conducted by SPSS25 and AMOS26 softwares.
Results: In study of validity of seventh item questionnaire, based on professors’ opinion, it was out of content validity (cvr= 0.16); in exploratory factor analysis, four social distance, social acceptance, social information and social anxiety factors were extracted which expressed 57.99 percent variance of questionnaire; results of confirmatory factor analysis confirmed the 4-factor model after adding and omitting processes (RMSEA= 0.05, CFI= 0.93, IFI= 0.93, p= 0.09, x2= 85.26), Cronbach Alfa and interclass correlation coefficients were equal to 0.8 for the final questionnaire; correlation of all items with the total mark was positive and meaningful and the values varied from 0.49 to 0.65. Average (standard deviation) of studied people’s age was 24.07 (6.27) year.
Conclusion: 14-item questionnaire of covid-19 social effects on students has acceptable validity and reliability.Further studies in other populations are suggested.
Mohsen Mahdinia, Seyyed Hassan Adeli, Hamidreza Heidari, Abolfazl Mohammadbeigi, Mohammadreza Khaksar, Ahmad Soltanzadeh,
Volume 17, Issue 2 (Vol 17,No.2, Summer 2021 2021)
Abstract
Background and Objectives: Pulmonary consequences of exposure to low concentrations of ammonia have been less studied. The purpose of this study was to model the pulmonary consequences of exposure to low concentrations of ammonia.
Methods: This historical cohort study was conducted in the fertilizer industries in 2019. The participants were divided into two groups of exposed (n=98) and non-exposed (n=105). The exposure level, pulmonary symptoms, and pulmonary function parameters were assessed using the NMAM 6016 and American Thoracic Society and European Respiratory society (ATS&ERS) protocols. Data analysis was performed using the IBM SPSS v. 22.0, and multivariate linear and logistic regression models.
Results: The ammonia exposure level was 4.80±1.54 ppm in the exposed group. There was no significant difference in most of the individual variables between the two groups (P>0.05). The frequency of all pulmonary symptoms was significantly higher in the exposed group compared to the non-exposed group (P<0.05). The highest prevalence of pulmonary symptoms in the exposed group was for cough (25.51%), wheezing (19.39%) and shortness of breath (18.37%). All lung function parameters were significantly lower in the exposed group versus the non-exposed group (P<0.05). The values of lung function parameters in the exposed group including FVC, FEV1 and FEV1 / FVC were 86.0%, 82.47% and 81.97%, respectively. Regression modeling results showed that ammonia exposure had a significant relationship with all pulmonary symptoms and lung function parameters (P<0.05).
Conclusion: The findings indicated that exposure to low concentrations of ammonia should be considered as a major risk factor in the prevalence of pulmonary symptoms and reduced lung function parameters.
