Letter to the Editor regarding “Questionable indication for postoperative radiotherapy after surgery for metastases of the major long bones”: A cautionary note on methodology and analysis

Journal of bone oncology, vol. 58, pp. 100757

Abstract

Moreover, defining a time-dependent exposure (receipt of PORT) and analysing it as if it were fixed at baseline can systematically bias competing-risk estimates.While the authors briefly mention in the

Authors 42

1. Shing Fung Lee

   National University of Singapore · Austin Hospital · National University Cancer Institute, Singapore · National University Hospital · Olivia Newton-John Cancer Wellness & Research Centre · Monash University

   Affiliation as printed

   Department of Medical Imaging and Radiation Sciences, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Sciences Monash University, Clayton, Victoria, Australia

   Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore

   Department of Radiation Oncology, National University Cancer Institute, National University Hospital, Singapore

   Olivia Newton-John Cancer Wellness and Research Centre, Austin Hospital, Heidelberg, Victoria, Australia

2. Joel A. Finkelstein

   Sunnybrook Health Science Centre · University of Toronto

   Affiliation as printed

   Division of Orthopaedic Surgery, Department of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada

3. Peter Hoskin

   Mount Vernon Hospital · University of Manchester · Mount Vernon Cancer Centre

   Affiliation as printed

   Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK

   Mount Vernon Cancer Centre, Northwood, UK

4. Dirk Rades

   University of Lübeck

   Affiliation as printed

   Department of Radiation Oncology, University of Lübeck, Lübeck, Germany

5. Eva Oldenburger

   Universitair Ziekenhuis Leuven

   Affiliation as printed

   Department of Radiation Oncology, University Hospitals Leuven, Leuven, Belgium

6. Tracy Anne Balboni

   Brigham and Women's Hospital · Harvard University · Mass General Brigham

   Affiliation as printed

   Department of Radiation Oncology, Brigham and Women's Hospital, Mass General Brigham, Harvard Medical School, Boston, MA, USA

7. Daniel E. Roos

   Royal Adelaide Hospital · The University of Adelaide

   Affiliation as printed

   Department of Radiation Oncology, Royal Adelaide Hospital, Adelaide, South Australia, Australia

   School of Medicine, University of Adelaide, Adelaide, South Australia, Australia

8. Hans J. Kreder

   Sunnybrook Health Science Centre · University of Toronto

   Affiliation as printed

   Division of Orthopaedic Surgery, Department of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada

9. Eric Lin Chang

   The University of Texas MD Anderson Cancer Center

   Affiliation as printed

   Department of Radiation Oncology, The University of Texas, M D Anderson Cancer Center, Houston, TX, USA

10. Samuel Ryu

    Stony Brook University Hospital · Stony Brook University

    Affiliation as printed

    Department of Radiation Oncology, Stony Brook University Health Science Center, Stony Brook, NY, USA

11. Amal Khoury

    Tel Aviv University · Tel Aviv Sourasky Medical Center

    Affiliation as printed

    Division of Orthopedics, Tel Aviv Sourasky Medical Center, Tel-Aviv, Affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel

12. Kristopher E.B. Dennis

    University of Ottawa · Ottawa Hospital

    Affiliation as printed

    Division of Radiation Oncology, Ottawa Hospital and University of Ottawa, Ottawa, Ontario, Canada

13. Candice Johnstone

    Medical College of Wisconsin

    Affiliation as printed

    Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, USA

14. Sara Rachel Alcorn

    University of Minnesota

    Affiliation as printed

    Department of Radiation Oncology, University of Minnesota, Minneapolis, MN, USA

15. Charles B. Simone

    Memorial Sloan Kettering Cancer Center · New York Proton Center

    Affiliation as printed

    Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA

    New York Proton Center, New York, NY, USA

16. Stephanie Lea Brown

    Norfolk and Norwich University Hospital

    Affiliation as printed

    Norfolk and Norwich University Hospital, UK

17. Jonas Willmann

    University of Zurich · University Hospital Zurich

    Affiliation as printed

    Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Switzerland

18. Joanne M. van der Velden Aachen Department of Radiotherapy, Leiden University Medical Centre

    Leiden University · Leiden University Medical Center · Netherlands Comprehensive Cancer Organisation

    Affiliation as printed

    Department of Radiotherapy, Leiden University Medical Centre, the Netherlands

    Netherlands Comprehensive Cancer Organisation, Utrecht, the Netherlands

19. Mateusz Jacek Spalek

    The Maria Sklodowska-Curie National Research Institute of Oncology

    Affiliation as printed

    Department of Soft Tissue/Bone Sarcoma and Melanoma and Department of Radiotherapy I, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland

20. Yvette M. van der Linden Aachen Centre of Expertise in Palliative Care Department of Radiotherapy, Leiden University Medical Centre

    Leiden University · Leiden University Medical Center

    Affiliation as printed

    Centre of Expertise in Palliative Care, Leiden University Medical Centre, Leiden, the Netherlands

    Department of Radiotherapy, Leiden University Medical Centre, the Netherlands

21. Joanna Kazmierska

    Poznan University of Medical Sciences · Greater Poland Cancer Center

    Affiliation as printed

    Electroradiology Department, University of Medical Sciences, Poznan, Poland

    Radiotherapy Department II, Greater Poland Cancer Centre, Poznan, Poland

22. Nicolaus H. Andratschke

    University of Zurich · University Hospital Zurich

    Affiliation as printed

    Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Switzerland

23. Emily Jean Martin

    University of California, Los Angeles

    Affiliation as printed

    Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA

24. Michael Chao

    The University of Melbourne · Austin Hospital · Olivia Newton-John Cancer Wellness & Research Centre · Monash University

    Affiliation as printed

    Department of Medical Imaging and Radiation Sciences, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Sciences Monash University, Clayton, Victoria, Australia

    Genesis Care Victoria, Ringwood Private Hospital, Ringwood East, Victoria, Australia

    Olivia Newton-John Cancer Wellness and Research Centre, Austin Hospital, Heidelberg, Victoria, Australia

    University of Melbourne, Melbourne, Victoria, Australia

25. Hany Soliman

    Sunnybrook Health Science Centre · University of Toronto · Odette Cancer Centre

    Affiliation as printed

    Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada

26. Kenny Yat-Hong Kwan

    University of Hong Kong

    Affiliation as printed

    Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China

27. Raymond Ching Hin Yau

    University of Hong Kong

    Affiliation as printed

    Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China

28. Shengji Yu

    Chinese Academy of Medical Sciences & Peking Union Medical College · Cancer Hospital of Chinese Academy of Medical Sciences

    Affiliation as printed

    Department of Orthopedics, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

29. Zhenfeng Li

    Chinese Academy of Medical Sciences & Peking Union Medical College · Cancer Hospital of Chinese Academy of Medical Sciences

    Affiliation as printed

    Department of Orthopedics, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

30. Albert Yee

    Sunnybrook Health Science Centre · University of Toronto

    Affiliation as printed

    Division of Orthopaedic Surgery, Department of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada

31. Ningning Lu

    Chinese Academy of Medical Sciences & Peking Union Medical College · Cancer Hospital of Chinese Academy of Medical Sciences

    Affiliation as printed

    Beijing Key Laboratory of Urologic Cancer Cell and Gene Therapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

    Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

32. XinXin Zhang

    Chinese Academy of Medical Sciences & Peking Union Medical College · Cancer Hospital of Chinese Academy of Medical Sciences

    Affiliation as printed

    Department of Orthopedics, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

33. Gavin P. Jones

    UMass Memorial Medical Center

    Affiliation as printed

    UMass Memorial Medical Group, Worcester, MA, USA

34. W.L. CHAN

    University of Hong Kong

    Affiliation as printed

    Department of Clinical Oncology, The University of Hong Kong, Hong Kong, China

35. Adrian Wai Chan

    BC Cancer Agency

    Affiliation as printed

    Department of Radiation Oncology, BC Cancer - Vancouver, Vancouver, Canada

36. Chung Ming Chan

    National University Hospital · National University Health System

    Affiliation as printed

    Hand and Reconstructive Microsurgery, National University Hospital, Singapore

37. Agata Rembielak

    University of Manchester · The Christie Hospital · The Christie NHS Foundation Trust

    Affiliation as printed

    Department of Clinical Oncology, The Christie NHS Foundation Trust, Manchester, UK

    Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK

38. Gustavo Nader Marta

    Hospital Sírio-Libanês · Latin American Cooperative Oncology Group (LACOG)

    Affiliation as printed

    Department of Radiation Oncology, Hospital Sírio-Libanês, São Paulo, Brazil

    Latin American Cooperative Oncology Group (LACOG), Brazil

39. Vassilios Vassiliou

    Bank of Cyprus Oncology Center

    Affiliation as printed

    Department of Radiation Oncology, Bank of Cyprus Oncology Centre, Nicosia, Cyprus

40. Saverio Caini
    Affiliation as printed

    Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy

41. Edward Chow

    Sunnybrook Health Science Centre · University of Toronto · Odette Cancer Centre

    Affiliation as printed

    Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada

42. Henry C. Y. Wong

    Princess Margaret Hospital

    Affiliation as printed

    Department of Oncology, Princess Margaret Hospital, Hong Kong