Comparison of methods for handling missing data on immunohistochemical markers in survival analysis of breast cancer

Grants

Funding Acknowledgements

We thank all the patients who have taken part in these studies without whom the research would not have been possible. We thank the SEARCH team, the MCCS investigators and the Histopathology Core Facility at the CRUK Cambridge Research Institute for the immunohistochemistry performed on the SEARCH and BCCA series. We also thank Ian White and Angela Woods for statistical advice and for their comments on an earlier draft of the manuscript. AA was supported by PhD scholarship grant from the Citadel Capital Foundation, Egypt. SJD was supported by PhD fellowship grant from the Commonwealth Scholarship and Fellowship Program and Cancer Research UK. SEARCH is funded by a programme grant from Cancer Research UK (C490/A10124) and the NIHR Cambridge Biomedical Research Centre. The immunohistochemical analysis of breast cancers from the MCCS was supported by Australian NHMRC Grants 209057, 251553 and 504711 and by infrastructure provided by The Cancer Council Victoria.