Statistical analysis
neutropenia
EVENTS, EVENT, NEUTROPENIA
The present study intended to reduce the incidence of grade 1–4 neutropenia to 30% in all chemotherapy cycles by the prophylactic use of PEG-rhG-CSF, based on a probability of 65% for the event [SPSS19.0 statistical software (SPSS Inc., Chicago, IL, USA) was used for data analysis. Demographic and baseline data were statistically described and compared between the study and control arms. The incidence of the efficacy measures and safety events was statistically described, and 95% confidence intervals were calculated. Student’s t-test, Chi-square test, and Fisher’s exact test were used to compare the differences between the arms. 