title: Chemotherapy-induced febrile neutropenia in patients with breast cancer. A multivariate risk assessment model for first cycle chemotherapy.
abstract: OBJECTIVE
  To identify factors that increase the risk of developing febrile neutropenia (FN) during the first cycle of chemotherapy in breast cancer patients.
  
  
  METHODS
  In this retrospective study, we reviewed the records of 211 patients with confirmed breast cancer treated with chemotherapy at the Princess Norah Oncology Center, King Abdulaziz Medical City, Jeddah, Kingdom of Saudi Arabia between January 2010 and May 2012. Statistical analysis was conducted using descriptive analysis, univariate, and multivariate logistic regressions. A multivariate regression of FN occurrence in the first cycle was developed.
  
  
  RESULTS
  The median age of patients was 48 years. Febrile neutropenia was documented in 43 (20.3%) of 211 patients. Twenty-one (49%) of the 43 patients had FN during the first cycle of chemotherapy. A multivariate logistic regression revealed that age (odds ratio [OR] 1.059, 95% confidence interval [CI]: 1.007-1.114), non-anthracycline and/or taxane-based chemotherapy regimens (OR of 39.488; 95% CI: 4.995-312.187), and neo-adjuvant chemotherapy (OR of 8.282; 95% CI: 1.667-41.152) were the most important independent risk factors of FN.
  
  
  CONCLUSIONS
  Identifying risk factors of FN may help to target high-risk patients with granulocyte colony-stimulating factor prophylaxis and reduce FN incidences, with subsequent morbidities and mortalities.
authors.affiliation: Department of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
authors.forename: Sara S
authors.initials: SS
authors.lastname: Baghlaf
authors.forename: Abdulrhman A
authors.initials: AA
authors.lastname: Abulaban
authors.forename: Mohammed B
authors.initials: MB
authors.lastname: Abrar
authors.forename: Ahmed S
authors.initials: AS
authors.lastname: Al-Shehri
mesh_terms: D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000009:adverse effects*; D001943:Breast Neoplasms / Q000188:drug therapy*; D064146:Chemotherapy-Induced Febrile Neutropenia / Q000209:etiology* / Q000517:prevention & control; D005260:Female; D006801:Humans; D008875:Middle Aged; D018570:Risk Assessment
chemical_list: D000970:Antineoplastic Agents