نتایج جستجو برای: epidemiologic study
تعداد نتایج: 3979131 فیلتر نتایج به سال:
Bicyclists and transportation professionals would do better to decline advice drawn from characteristically epidemiological studies. The faults of epidemiology are both accidental (unpreparedness for the task) and essential (unsuitability of the methods). Characteristically epidemiological methods are known to be error-prone, and when applied to bicycle transportation suffer from diversion bias...
This white paper identifies knowledge gaps and new challenges in healthcare epidemiology research, assesses the progress made toward addressing research priorities, provides the Society for Healthcare Epidemiology of America (SHEA) Research Committee's recommendations for high-priority research topics, and proposes a road map for making progress toward these goals. It updates the 2010 SHEA Rese...
introduction: renal transplantation are admitted to emergency department (ed) more than normal population. the present brief report aimed to determine the reasons of renal transplant patients’ ed visits. methods: this retrospective case series study analyzed the reasons of renal transplant recipients’ admission to one ed between 2011 and 2014. the patient data were collected via a checklist a...
background: maternal mortality ratio (mmr) is one of the main indicators of the millennium development goals and its accurate estimation is very important for the countries concerned. the objective of this study is to evaluate the applicability of capture‑recapture (crc) as an analytical method to estimate mmr in countries. methods: we used the crc method to estimate mmr in iran for 2004 and 20...
Participation rates for epidemiologic studies have been declining during the past 30 years with even steeper declines in recent years. This wholesale decrease in participation rate, or at the very least the increase in refusal, has, quite understandably, occasioned some concern among epidemiologists who have long considered a high study participation rate as one of the hallmarks of a "good" epi...
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