title: [Study of the risk factors of postoperative surgical site infection in geriatric patients with oral squamous cell carcinoma].
abstract: OBJECTIVE
  To review and analyze the risk factors of postoperative surgical site infection (SSI) in geriatric patients who undergo surgical treatment of oral squamous cell carcinoma.
  
  
  METHODS
  A retrospective study was conducted on 143 geriatric patients who have undergone surgical treatment of oral squamous cell carcinoma. Factors were classified into four types, namely, characteristics, tumor factors, general comorbidity factors, and perioperative factors. The primary outcome variable was the presence of SSI. A logistic stepwise regression model was used for the subsequent multivariate analysis, wherein only significant risk factors in the univariate analysis were included.
  
  
  RESULTS
  Among 143 cases, 33 showed postoperative SSI. Results of univariate analysis indicated that risk factors included age, body mass index (BMI), tumor location, tumor size, diabetes, chronic obstructive pulmonary disease, American Society of Anesthesiologists (ASA) score, Charlson comorbidity index (CCI), adult comorbidity evaluation-27 (ACE-27) score, previous radiotherapy, reconstructive method, operation time, and blood transfusion. Among these factors, six parameters were identified to have a significant factor association with the development of SSI, namely BMI, diabetes, ASA score, ACE-27 score, operation time, and reconstructive method.
  
  
  CONCLUSIONS
  Special attention should be given to factors associated with the development of SSI before operation of geriatric patients with oral squamous cell carcinoma.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wang
authors.forename: Zhu
authors.initials: Z
authors.lastname: Zhang
authors.forename: Shiyan
authors.initials: S
authors.lastname: Zhang
authors.forename: Shirun
authors.initials: S
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D002294:Carcinoma, Squamous Cell / Q000601:surgery*; D005260:Female; D015577:Geriatric Assessment; D006801:Humans; D016015:Logistic Models; D008297:Male; D009062:Mouth Neoplasms / Q000601:surgery*; D015999:Multivariate Analysis; D061646:Operative Time; D011183:Postoperative Complications; D011184:Postoperative Period; D019651:Plastic Surgery Procedures / Q000379:methods; D012189:Retrospective Studies; D012307:Risk Factors; D013530:Surgical Wound Infection / Q000209:etiology*