TY - GEN AU - van Maaren,Marissa C AU - le Cessie,Saskia AU - Strobbe,Luc J A AU - Groothuis-Oudshoorn,Catharina G M AU - Poortmans,Philip M P AU - Siesling,Sabine TI - Different statistical techniques dealing with confounding in observational research: measuring the effect of breast-conserving therapy and mastectomy on survival SN - 1432-1335 PY - 2019///0612 KW - Adult KW - Aged KW - Aged, 80 and over KW - Breast Neoplasms KW - mortality KW - Confounding Factors, Epidemiologic KW - Female KW - Humans KW - Mastectomy KW - Mastectomy, Segmental KW - Middle Aged KW - Netherlands KW - epidemiology KW - Observational Studies as Topic KW - Propensity Score KW - Proportional Hazards Models KW - Randomized Controlled Trials as Topic N1 - Publication Type: Journal Article UR - https://doi.org/10.1007/s00432-019-02919-x ER -