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Kaplan‐Meier curves of progression‐free survival (PFS) by sPBC versus sNPBC, with median survival times reported. There was no statistical difference in PFS in a multivariable model adjusting for several baseline factors, as detailed in Table 2. Abbreviations: CI, confidence interval; HR, hazard ratio; sNPBC, subsequent non–platinum‐based chemotherapy; sPBC, subsequent platinum‐based chemotherapy.
