نتایج جستجو برای: nested case
تعداد نتایج: 1377249 فیلتر نتایج به سال:
Background Patient falls are considered a challenge to the patient’s safety in hospitals, which, in addition to increasing the length of stay and costs, may also result in severe injuries or even the death of the patient. This study aims to investigate the associations between risk factors among fallers in comparison with the control group. Methods A prospective nested...
Bacteria of the genus Bartonella are emerging pathogens detected in lymph node biopsies and aspirates probably caused by increased concentration of bacteria. Twenty-three samples of 18 patients with clinical, laboratory and/or epidemiological data suggesting bartonellosis were subjected to three nested amplifications targeting a fragment of the 60-kDa heat shock protein (HSP), the internal tran...
BACKGROUND Sampling from a large cohort in order to derive a subsample that would be sufficient for statistical analysis is a frequently used method for handling large data sets in epidemiological studies with limited resources for exposure measurement. For clinical studies however, when interest is in the influence of a potential risk factor, cohort studies are often the first choice with all ...
We performed a real-time PCR assay to detect herpes simplex virus (HSV) DNA, and compared it prospectively with a nested PCR assay in 164 clinical samples (109 cerebrospinal fluid and 55 sera) from patients suspected of having neonatal HSV infection or HSV encephalitis. In 25 of 164 samples, HSV DNA was detected by the nested PCR assay. All samples positive for HSV DNA in the nested PCR assay w...
purpose: to ascertain whether the use of nested-pcr (nested polymerase chain reaction) technique leads to more rapid and accurate diagnosis of bacterial endophthalmitis. methods: the aqueous humor and vitreous samples of 24 eyes of 24 patients with bacterial endophthalmitis were evaluated by microscopy, diagnostic aerobic culture, and nested- pcr to detect the infectious agent. results: aerobic...
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