d="p0010">We performed a subgroup analysis from a randomised phase III trial, the GEST study.
dd><dt class="label">•dt><dd>d="p0015">Gemcitabine plus S-1 (GS), S-1, and gemcitabine treatment resulted in similar overall survival.
dd><dt class="label">•dt><dd>d="p0020">Severe adverse haematological events were more frequent with GS treatment.
dd><dt class="label">•dt><dd>d="p0025">Three treatment-related deaths were observed in elderly GS-treated patients.
dd>dl>