Exact(11)
In this brief report, we will put in perspective the general analytical framework for exploring and validating prognostic factors using data from large databases.
We documented perinatal factors using data from the medical charts review and the postpartum interview.
Standardized incidence ratios were indirectly adjusted for cancer risk factors using data from AIDS cohort participants and the general population.
All of these terms can be estimated directly based on observable risk factors using data from the case control study.
We calculated these correction factors using data from several analyses, each of which has its own inherent limitations and some of which have not yet been published.
In the present study, we assessed the effects of the 2008 cold spell on mortality, spatial heterogeneity of the effects and demographic modifying factors using data from 36 communities of subtropical China.
Similar(49)
In this study, we assessed the relation between predicted long-term vitamin D status and pancreatic cancer risk in both men and women and with additional follow-up (up to 2006), and further examined the potential effect modifications by other factors, using data collected from the Nurses Health Studyy (NHS) and the Health Professionals Follow-up Study (Health Professionals Follow-up
Thus, we studied the variability of the calibration factor measurement using data from a series of patient 131I-tositumomab + unlabeled tositumomab (Bexxar®, GlaxoSmithKline, Brentford, England) radionuclide therapy procedures and quality control measurements obtained over a period of 4 years.
Notably, a confounding factor in using data from several of the large BC clinical trials is that each study used different, and often vague, definitions of 'postmenopausal' (Table 1) [ 1, 2, 9, 91– 91].
Exploratory factor analysis using data from SIV-1 confirmed most of the relationships between items and domains that were hypothesized in the original conceptual model (Additional file 1, Figure 2a).
Analyses were carried out by testing for differences between the proportions seen within the relevant targets at different levels of the factor concerned, using data from the complete period (July 1997 December 2000).
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