Confounding: What it is and how to deal with it

Statistical Aspects of the Analysis of Data From Retrospective Studies of Disease

Nathan Mantel, William Haenszel · JNCI Journal of the National Cancer Institute · 1959 · 14.9K citations

Public Health, Biostatistics, Epidemiologic Methods +12

Normalization of Hemoglobin Level in Patients with Chronic Kidney Disease and Anemia

Tilman B. Drüeke, Francesco Locatelli, Naomi Clyne et al. · New England Journal of Medicine · 2006 · 2.1K citations · Full text

Medicine, Hematology, Nephrology +13

Effect of Dialysis Dose and Membrane Flux in Maintenance Hemodialysis

Garabed Eknoyan, Gerald J. Beck, Alfred K. Cheung et al. · New England Journal of Medicine · 2002 · 1.9K citations · Full text

Medicine, Nephrology, Dialysis +16

Bias and causal associations in observational research

David A. Grimes, Kenneth F. Schulz · The Lancet · 2002 · 1.5K citations

Public Health, Biostatistics, Causal Inference +13

Body Mass Index and Risk for End-Stage Renal Disease

Chi‐yuan Hsu, Charles E. McCulloch, Carlos Iribarren et al. · Annals of Internal Medicine · 2006 · 1.4K citations

Medicine, Internal Medicine, Nephrology +14