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Laparoscopic staging for apparent stage I epithelial ovarian cancer
Alexander Melamed, MD, MPH, Nancy L. Keating, MD, MPH, Joel T. Clemmer, MA, Amy J. Bregar, MD, MS, Jason D. Wright, MD, David M. Boruta, MD, John O. Schorge, MD, Marcela G. del Carmen, MD, MPH, J. Alejandro Rauh-Hain, MD American Journal of Obstetrics & Gynecology Volume 216, Issue 1, Pages 50.e1-50.e12 (January 2017) DOI: /j.ajog Copyright © 2016 Elsevier Inc. Terms and Conditions
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Figure 1 Flow diagram of the study population and propensity-matched cohort Exclusion criteria are described on right-hand side. Utilizing an optimal algorithm to perform 1:1 propensity score matching, 1096 patients who underwent laparoscopy were successfully matched to a patient who underwent laparotomy. Melamed et al. Laparoscopic staging in early ovarian cancer. Am J Obstet Gynecol 2017. American Journal of Obstetrics & Gynecology , 50.e1-50.e12DOI: ( /j.ajog ) Copyright © 2016 Elsevier Inc. Terms and Conditions
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Figure 2 Kaplan-Meier plot of overall survival in the propensity-matched cohort P value is based on the log rank test. Melamed et al. Laparoscopic staging in early ovarian cancer. Am J Obstet Gynecol 2017. American Journal of Obstetrics & Gynecology , 50.e1-50.e12DOI: ( /j.ajog ) Copyright © 2016 Elsevier Inc. Terms and Conditions
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Appendix Figure Absolute standardized differences in variables included in propensity score Absolute standardized differences in variables included in propensity score before (solid diamonds) and after (hollow circles) propensity score matching. Groups are considered well balanced on a covariate when the absolute standardized difference is less than 10%. Melamed et al. Laparoscopic staging in early ovarian cancer. Am J Obstet Gynecol 2017. American Journal of Obstetrics & Gynecology , 50.e1-50.e12DOI: ( /j.ajog ) Copyright © 2016 Elsevier Inc. Terms and Conditions
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