منابع مشابه
False alarms and pseudo-epidemics: the limitations of observational epidemiology.
Most reported associations in observational clinical research are false, and the minority of associations that are true are often exaggerated. This credibility problem has many causes, including the failure of authors, reviewers, and editors to recognize the inherent limitations of these studies. This issue is especially problematic for weak associations, variably defined as relative risks (RRs...
متن کاملEpidemiologic research with administrative databases: red herrings, false alarms and pseudo-epidemics.
In 1994, Altman (1994) startled themedical world by declaring that poor research is as unethical as fraudulent research. His reasoning was simple: both kinds of research mislead which, in turn, harms patients. A decade later, others (von Elm and Egger, 2004) found that the problem had persisted. With the growing indiscriminate use of administrative databases for epidemiologic research (Grimes, ...
متن کاملFalse Alarms About False Memories
M. B. Miller and G. L. Wolford (1999) make two contributions. First, they add conditions to the basic Roediger-McDermott (1995) procedure and find that critical items are recalled and recognized more often if they are presented in the list than if they are not presented. These results agree with our own, which are briefly reviewed. Second, they apply signal detection theory to the paradigm and ...
متن کاملConscious sedation and pulse oximetry: false alarms?
The use of pulse oximetry in dental procedures involving sedation and children has been encouraged strongly. Reports have indicated that hemoglobin desaturations are not uncommon when a variety of drugs (including nitrous oxide) and dosages are used. The present study investigated the nature of desaturations in relation to patient activity as a function of a drug combination, single drug dose-r...
متن کاملReducing False Alarms with Multi-modal Sensing
Industrial sensing applications place a premium on costeffectiveness and accuracy. Traditional approaches often use expensive, invasive sensors, because inexpensive sensors suffer from false positive detections. Sensor cost means automation is sparse or avoided when the value of specific sites cannot be justified. In this paper, we show combining different types of sensors can allow low-cost se...
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ژورنال
عنوان ژورنال: Obstetrics & Gynecology
سال: 2012
ISSN: 0029-7844
DOI: 10.1097/aog.0b013e31826af61a