توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Prevalence of internet addiction among university students in Ilam: a cross–sectional study
اطلاعات انتشار: International Journal of Epidemiologic Research، اول،شماره۱، ۲۰۱۴، سال
تعداد صفحات: ۷
Background and aims: Internet addiction is one of the problems emerged with the development of technology. Considering the potential negative effects of internet addiction on health, the present study aimed to determine the prevalence of internet addiction in university students in Ilam, west of Iran, in 2014. Methods:In this cross– sectional study, 1066 university students in both public and private sectors were assessed in 2014. The samples were selected by multi–stage random sampling method. Data were collected by a two–part questionnaire: the personal characteristics and Internet Addiction Test (IAT)–20. This 20–itemed questionnaire measures internet addiction in mild, moderate and severe levels. Each answer is scored based on a Likert scale from 1 to 5. The higher score represents a greater level of addiction. The total score between 20 and 49 represented mild, 50–79 showed moderate and 80–100 was severe addiction. Results:Overall, 466 (43.7%) of students were placed in the Internet addiction group. Generally, 39.6% of students had mild and 4.1% had moderate addiction. No case of sever Internet addiction was seen. Prevalence of internet addiction in the medical students was higher compared to nonmedical students (P 0.0001). Conclusion:Based on the results, internet addiction should be considered as a serious problem in adolescents and young adults. So, it is necessary that proper use of internet to be educated to adolescents and young adults to prevent the risk of internet addiction.

۲Risk factors of pelvic organ prolapse in Iranian women: a cross–sectional study
اطلاعات انتشار: International Journal of Epidemiologic Research، اول،شماره۱، ۲۰۱۴، سال
تعداد صفحات: ۶
Background and aims: Pelvic organ prolapse (POP) is a common condition which affects on a large proportion of women. The objective of this study was to determine the risk factors of POP in Iranian women. Methods: This cross–sectional study was carried out to examine the role of demographic, anthropometric and clinical characteristics in POP disease in a sample of 365 females in Ilam, Iran. Examinations were performed according to Pelvic Organ Prolapse Quantification (POPQ) technique in dorsal lithotomic position. Then, the sample divided into two groups as with and without prolapse. Then, unilabiate and multivariate analyses were performed. Results: Totally, 365 women participated in this study. The prevalence of POP was 80.8%. Univariate logistic regression analysis showed a significant differences between groups with and without POP based on age, maximum birth weight, BMI, pregnancy, delivery mode, delivery operative and delivery position. But after multivariate analysis, the most significant factors identified as risk factors for POP were age (OR= 1.12, 95% CI= 1.02–1.23, P= 0.02), normal vaginal delivery (NVD; OR= 6.18, 95% CI= 1.43–26.75, P= 0.01) and episiotomy (OR= 30, 95% CI= 5.69–158.11, P= 0.000). Conclusion: Findings of the study showed that several risk factors could collaborate in creating of POP. However; body mass index and number of pregnancies are modifiable factors. So, maternal care providers should educate women for maintaining the ideal weight and decreasing the number of pregnancy in order to prevent POP.

۳The global trend of infertility: an original review and meta–analysis
اطلاعات انتشار: International Journal of Epidemiologic Research، اول،شماره۱، ۲۰۱۴، سال
تعداد صفحات: ۹
Background and aims: Infertility is one of the most important conditions in reproductive system and there is no reliable estimates for global prevalence of infertility. Therefore, knowing the prevalence of infertility is important and can be effective in decision making. Methods: We systematically reviewed all published papers in Medline database and Scopus (1988–2010). Univariate and multivariate approaches were applied to assess the causes of heterogeneity among the selected studies. Meta–regression was used to examine the relationship between the prevalence of infertility and the year of study. Data manipulation and statistical analyses were performed using Stata 11.1. Results: The study population was not similar in all papers. Studies evaluated the prevalence of infertility in the general population, the total female population, women and couples. Some studies defined infertility as failure to conceive within 12 months of regular sexual life without contraception methods while other studies defined it as failure to conceive within 24 months of regular sexual life without contraception methods. Overall, 52 studies met our inclusion criteria and the pooled worldwide of infertility was obtained about 10%. The correlation between prevalence of secondary infertility and year of study was significant (P=0.039). Conclusions: Approximately 10% of the world''s population suffers from infertility. Due to the negative impact of infertility on couples in various aspects of life, and the need for treatment and support programs, accurate estimate of infertility is essential worldwide.

۴Predictive factors for loneliness in female high school students; an unvariate and multivariate logistic regression analysis
اطلاعات انتشار: International Journal of Epidemiologic Research، دوم،شماره۴، ۲۰۱۵، سال
تعداد صفحات: ۶
Background and aims: Loneliness typically includes anxious feelings. It is particularly relevant to adolescence period. It has effect on physical and mental health. The present study aimed to identify the predictive factors of loneliness among high schools female students.Methods: A cross –sectional survey was carried out among high schools female students in Ilam during the academic year 2014–15. Sampling was done by multistage method. The student's consent to participation in the study obtained by full filled the questionnaires. Data were collected by demographic and University of California, Los Angeles questionnaire. Questionnaires with incomplete information were excluded. The Cronbach’s alpha coefficient was measured as an index of internal identicalness of the questionnaire to verify its reliability. Results: A total 400 female high school students were studied. Overall, 62.8% of students put into non– loneliness group and 37.3% of all have loneliness. The univariate logistic regression analysis demonstrates that education field, father’s education and father’s occupation were different between the groups (P 0.05). The risk of loneliness was higher in students with a mathematical sciences education field in comparison to general education field (OR= 1.75). In multivariate logistic regression analysis the education field, father’s education and father’s occupation were considered as independent predictive variables for female students’ loneliness. The AUROC criterion was applied to compute both the sensibility and the specificity of the manikin. The overall percent of correct classification of the model is 64%. Conclusion: Identify the causes of students loneliness can prevent complications and provide appropriate solutions.
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