Association of delayed chemotherapy (≥3 months) and survival in matched samples.

achemotherapy initiated ≥3 months after surgery, reference group is chemotherapy initiated bcomparison based on stratified Cox regression.Note: all models adjusted for age, gender, Charlson index, length of hospital stays and hospital readmission after surgery. The interaction terms of delayed chemotherapy modified by incomplete chemotherapy were not significant in all the models.Association of delayed chemotherapy (≥3 months) and survival in matched samples.