文章基本信息

标题：The Sensitivity, Specificity and Predictive Values of Snellen Chart Compared to the Diagnostic Test in Amblyopia Screening Program in Iran
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作者：Fatemeh Rivakani ffmr @yahoo.com ; Leila Torabi leila.torabi @gmail.com ; Minoo Rafiei 等
期刊名称：International Journal of Pediatrics
印刷版ISSN：2345-5047
电子版ISSN：2345-5055
出版年度：2015
卷号：3
期号：6.2
页码：1125-1133
语种：English
出版社：Mashhad University of Medical Sciences
其他摘要：Introduction Amblyopia is a leading cause of visual impairment in both childhood and adult populations. Our aim in this study was to assess the epidemiological characteristics of the amblyopia screening program in Iran. Materials and Methods A cross-sectional study was done on a randomly selected sample of 4,636 Iranian children who were referred to screening program in 2013 were participated in validity study, too. From each provinces the major city were selected. Screening and diagnostic tests were done by instructors in first stage and optometrists in second stage, respectively. Finally data were analyzed by Stata version 13. Results The sensitivity was ranged from 74% to 100% among the various provinces such that Fars and Ardabil province had maximum and minimum values, respectively. The pattern of specificity was differ and ranged 44% to 84% among the provinces; Hormozgan and Fars had maximum and minimum values, respectively. The positive predictive value was also ranged from 35% to %81 which was assigned to Khuzestan and Ardabil provinces, respectively. The range of Negative Predictive value was 61% to 100% which was belonged to Ardabil and Fars provinces. Conclusion The total sensitivity (89%) and negative predictive values (93%) of screening test among children aged 3-6 years is acceptable, but only 51% of children refereed to second stage are true positive and this imposes considerable cost to health system.
其他关键词：Amblyopia; Child; Iran; Sensitivity and Specificity; screening