N Abdolahi, Aa Keshtkar, Sh Semnani, Ghr Roshandel, S Beshrat, Hr Joshaghani, A Moradi, Kh Kalavi, S Beshrat, A Jabbari, Mj Kabir, A Hosseini, M Sedaghat, A Danesh, D Roshandel,
Volume 2, Issue 3 (24 2006)
Abstract
Background & Objectives: To determine the prevalence of HBV infection in the Golestan Province (southeastern part of the Caspian littoral, Iran).
Methods: A single cluster study was conducted in 2005, based on a sample of households, representative of the population aged 25-65 years in Golestan. All participants were invited for face-to-face interviews to gather demographic data. Blood samples were drawn and analyzed for serum markers of HBV infection such as HBsAg and HBcAb by the ELISA method. Factors associated with hepatitis B seroprevalence were analyzed using SPSS13 and STATA /8.
Results: A total of 1850 subjects were screened. The age- & sex-standardized prevalence for HBsAg positivity was 9.7% (95%CI=0.07-0.11). Rates were higher in males than in females (10.8% vs. 8.6%) (OR=1.28 95% CI=0.9-1.7). HBV seroprevalence in unmarried individuals was significantly higher than in those who were married (OR=2.13 95%CI=1.29-3.5). HBsAg(+) status was more frequent in urban areas (OR=1.46 95% CI=0.9-2.3). Thirty-six percent of population was HBcAb positive. HBcAb(+) prevalence was significantly higher in females (OR=1.46 95% CI=1.19-1.8) and married people (OR=1.58 95%CI=1.02-2.45), and also in urban areas (OR=1.34 95% CI=1.09-1.6).
Conclusions: This study shows that the prevalence of HBsAg(+) status in the Iranian province of Golestan is at a level regarded as "high" by the World Health Organization. It is higher than reported by pervious studies in Iran so it is important- especially for health providers and policy makers- to recognize risk factors and design appropriate prevention programs.
F Tanhaye Reshvanloo , S Sedaghatee, H Kareshki, T Saeidi Rezvani ,
Volume 16, Issue 3 (Vol.16, No.3 2020)
Abstract
Background and Objectives: The widespread use of the Internet has created new issues in the field of psychological studies. One of these emerging constructs is Internet anxiety. The purpose of the present study was to investigate the construct validity of the Internet Anxiety Scale in students.
Methods: In a descriptive, validation study, 206 and 289 students from Farhangian University Branches of Mashhad were selected through multi-stage sampling and completed the Internet Anxiety Scale and Internet Self-efficacy scale, respectively. Internal consistency, exploratory and confirmatory factor analysis, criterion and constructive validity were evaluated using SPSS.25 and AMOS.24 software.
Results: The results showed that the scale had a two-factor structure with an explained variance of 55.82%. Confirmatory factor analysis was confirmed. The scale had good construct reliability. The divergent validity confirmed in relation to Internet self-efficacy (P<0.01). There was no significant difference in age (P>0.05). Gender differences were significant for fear of negative evaluation (F=6.53, P<0.01) and internet anxiety score (F=7.22, P<0.01), and girls had higher mean scores. Differences were significant according to field (P <0.01) and Science and Foreign Language students had the lowest and the highest mean score, respectively (21.37 and 27.05).
Conclusion: It seems that the Internet Anxiety Scale has a good reliability and validity in students.
