- ►annals.org [PDF] AR Localio, JA Berlin, TR Ten Have, SE … - Annals of internal medicine, 2001 - Am Coll Physicians Increasingly, investigators rely on multicenter or multigroup stud- ies to
demonstrate effectiveness and generalizability. Authors too often overlook the
analytic challenges in these study designs: the correlation of outcomes and ... Cited by 176 - Related articles - All 6 versions
NV Athienites, DC Miskulin, G Fernandez, S … - Seminars in Dialysis, 2000 - interscience.wiley.com The purpose of this paper is to describe the ICED, summarize outcomes of prior
studies in which it was used, and describe the adaptations that have lead to the
present instrument. We will then demonstrate its use in quantifying the ... Cited by 46 - Related articles - BL Direct - All 3 versions
NR Powe, MJ Klag, JH Sadler, GF Anderson, … - Seminars in Dialysis, 1996 - interscience.wiley.com In the CHOICE study, a multidisciplinary research team is conducting several
complementary research projects designed to better understand how dialysis care
practice influences health outcomes and costs. The study places a special ... Cited by 43 - Related articles - BL Direct
DC Miskulin, KB Meyer, NV Athienites, AA … - American Journal of Kidney Diseases, 2002 - Elsevier Case-mix factors influence both the selection of dialysis modality and outcomes
in end-stage renal disease (ESRD). A detailed characterization of the case-mix
differences between peritoneal dialysis (PD) and hemodialysis (HD) patients ... Cited by 82 - Related articles - BL Direct - All 3 versions
DC Miskulin, NV Athienites, G Yan, AA Martin … - Kidney international, 2001 - nature.com The Hemodialysis (HEMO) Study is a multicenter trial designed to determine
whether hemodialysis dose and membrane flux affect survival. Comorbid conditions
are also important determinants of survival, and thus, an accurate and ... Cited by 86 - Related articles - BL Direct - All 4 versions
S Senn - Statistics in medicine, 1998 - interscience.wiley.com It is also possible that your web browser is not configured or not able to
display style sheets. In this case, although the visual presentation will be
degraded, the site should continue to be functional. We recommend using the ... Cited by 55 - Related articles - BL Direct - All 3 versions
- ►annals.org [PDF] KS Panageas, D Schrag, E Riedel, PB Bach, … - Annals of internal medicine, 2003 - Am Coll Physicians Background: A large body of literature documents associations between the volume
of cases a hospital or surgeon treats and clinical outcomes. Most of these
studies have used conventional statistical methods that do not recognize ... Cited by 133 - Related articles - BL Direct - All 5 versions
- ►bmj.com SM Kerry, JM Bland - British Medical Journal, 1998 - bmj.com We have described the calculation of sample size when subjects are randomised in
groups or clusters in terms of two variances the variance of observations taken
from individuals in the same cluster, s w 2 , and the variance of true ... Cited by 98 - Related articles - BL Direct - All 5 versions
A Agresti, J Hartzel - Statistics in medicine, 2000 - interscience.wiley.com This paper surveys methods for comparing treatments on a binary response when
observations occur for several strata. A common application is multi-centre
clinical trials, in which the strata refer to a sample of centres or sites ... Cited by 31 - Related articles - BL Direct - All 3 versions
- ►oxfordjournals.org A Desideri, PM Fioretti, L Cortigiani, D … - European heart journal, 2003 - Eur Soc Cardiology Methods and results Four-hundred fifty-eight patients from 10 participating
centers with a recent uncomplicated myocardial infarction were randomized to
pharmacological stress echocardiography on day 3–5 followed by early ... Cited by 10 - Related articles - All 5 versions
