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The Scale-Up estimator (Bernard, Social Science Research, 1991) is network-based estimator for the size of hidden or hard-to-count subpopulations. Several issues are arising in the public health context when the aim is the estimation of injuries occurring in a certain population, where two common problems are present: (i) the fact that small injuries are(More)
The scale-up method estimates the size of hard to count subpopulations. This method is based on the idea that the proportion of subjects in a subpopulation E known to each member of the general population T is the same as the proportion of members of E belonging to general population T. The aim of this study is to assess if this method is suitable for(More)
Web-based surveillance systems enhance the ability for identifying, estimating and assessing public health hazards. In this paper we describe the development of a Web-based surveillance registry called Susy Safe for inorganic foreign body injuries in children aged 0-14. The Susy Safe system, which collected 2103 cases during 2000-2002 in 19 European(More)
Injury Surveillance Systems based on traditional hospital records or clinical data have the advantage of being a well established, highly reliable source of information for making an active surveillance on specific injuries, like choking in children. However, they suffer the drawback of delays in making data available to the analysis, due to inefficiencies(More)
Foreign body injuries are a well-known threat to children due to the high risk of ingestion of small objects and choking. In order to depict the epidemiological framework of such injuries, data are mostly available for hospitalizations and partially for emergency room visits. The hidden part of the phenomenon consisting of minor self-resolved injuries is(More)
The scale-up estimator is a network-based estimator for the size of hidden or hard to count subpopulations. Several issues arise in the public health context when the aim is the estimation of injuries occurring in a certain population , where two common problems are present: (a) Small injuries are usually difficult to observe and rarely reported in the(More)
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: Abstract The scale-up method estimates the size of hard to count subpopulations. This(More)
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