Thomas S. Rector

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ii This document was written with support from the Effective Health Care Program at the Agency for Healthcare Research and Quality (AHRQ). Its findings and conclusions are those of the authors, who are responsible for its contents; the findings and conclusions do not necessarily represent the views of AHRQ. Therefore, no statement in this document should be(More)
OBJECTIVES Evaluate treatment options for nonruptured abdominal aortic aneurysms (AAA); the relationship of hospital and physician volume to outcomes for endovascular repair (EVAR); affect of patient and AAA factors on outcomes; cost-benefits of treatments. DATA SOURCES PubMed, Cochrane Library, FDA, and other electronic websites until May 2006. Reference(More)
BACKGROUND Low 25-hydroxyvitamin D (25[OH]D) levels, commonly observed in chronic obstructive pulmonary disease (COPD), are associated with muscle weakness in elderly populations, and vitamin D supplementation appears to improve muscle strength and decrease falls in older individuals. We tested the effect of vitamin D supplementation on physical performance(More)
A number of new biological markers are being studied as predictors of disease or adverse medical events among those who already have a disease. Systematic reviews of this growing literature can help determine whether the available evidence supports use of a new biomarker as a prognostic test that can more accurately place patients into different prognostic(More)
BACKGROUND Most interventions aimed at reducing hospitalizations and emergency department (ED) visits in patients with chronic obstructive pulmonary disease (COPD) have employed resource-intense programs in high-risk individuals. Although COPD is a progressive disease, little is known about the effectiveness of proactive interventions aimed at preventing(More)
BACKGROUND Enoxaparin sodium has predictable pharmacokinetics that allow for simplified dosing without laboratory monitoring. Reliance on renal function for excretion may lead to accumulation of enoxaparin in patients with moderate renal impairment. However, there is no dose adjustment recommended for these patients. We conducted a review to compare(More)
Multiple primary malignancies (MPMs) are increasing as cancer survivorship improves. A large analysis of the SEER database estimates that approximately 16 % of new cancers reported to their registry represent a second or higher order malignancy. The purpose of this study is to estimate the number of MPM diagnoses and to define differences in synchronous and(More)
Despite extensive research and numerous publications biomarkers have yet to fulfill their promise as prognostic indicators that can be widely used in the care of patients with heart failure. Specific clinical applications need to be identified for informative analyses of data that emphasize the most directly applicable measures of predictive performance.
OBJECTIVES Despite the U.S. Department of Veterans Affairs' (VA) expansion of mental health services to treat VA service users with posttraumatic stress disorder (PTSD), many with PTSD do not engage in treatment. Numerous studies suggest that beliefs about treatment and social network factors, such as encouragement to seek treatment by others, affect(More)