Karen Leffondré

A global assessment tool for evaluation of intraoperative laparoscopic skills

Melina C. Vassiliou, Liane S. Feldman, Christopher G. Andrew et al. · The American Journal of Surgery · 2005 · 876 citations

Laparoscopy, Surgical Training, Global Assessment Tool +6

When do we need competing risks methods for survival analysis in nephrology?

Marlies Noordzij, Karen Leffondré, Karlijn J. van Stralen et al. · Nephrology Dialysis Transplantation · 2013 · 655 citations

Modeling Smoking History: A Comparison of Different Approaches

Karen Leffondré · American Journal of Epidemiology · 2002 · 313 citations · Full text

Tobacco Cessation, Substance Use, Tobacco Control +16

Competing risks analyses: objectives and approaches

Marcel Wolbers, Michael Koller, Vianda S Stel et al. · European Heart Journal · 2014 · 307 citations · Full text

Cumulative Incidence Function, Risk Analysis, Emerging Risk +20

Relationship Between Smoking and the Clinical Severity of Psoriasis

Cristina Fortes, Simona Mastroeni, Karen Leffondré et al. · Archives of Dermatology · 2005 · 244 citations