title: Gender as a moderator between having an anxiety disorder diagnosis and coronary artery bypass grafting surgery (CABG) outcomes in rural patients.
abstract: OBJECTIVE
  This paper examines gender as a moderating variable between having an anxiety disorder diagnosis and coronary artery bypass grafting surgery (CABG) outcomes in rural patients.
  
  
  METHODS
  Using the 2008 Nationwide Inpatient Sample (NIS) database, 17,885 discharge records of patients who underwent a primary CABG surgery were identified. Independent variables included age, gender, race, median household income based on patient's ZIP code, primary expected payer, the Deyo, Cherkin, and Ciol Comorbidity Index, and an anxiety comorbidity diagnosis. Outcome variables included in-hospital length of stay and patient disposition (routine and nonroutine discharge). A 2 × 2 analysis of variance and logistic regression analyses were used to assess the interaction between gender and an anxiety disorder diagnosis on in-hospital length of stay and patient disposition.
  
  
  RESULTS
  Twenty-seven percent of rural patients undergoing a CABG operation had a comorbid anxiety diagnosis. Rural patients who had nonroutine discharge were more likely to have comorbid anxiety diagnosis compared to rural patients who had a routine discharge. There was a significant interaction effect between having an anxiety diagnosis and gender on length of hospital stay but not for patient disposition.
  
  
  CONCLUSIONS
  Three findings were noteworthy. First, anxiety disorder is prevalent in rural patients who are undergoing a CABG operation. Second, anxiety was a significant independent predictor of both length of hospital stay and nonroutine discharge for patients receiving CABG surgery. Last, having an anxiety disorder diagnosis increased hospital stay for both males and females; however, females seemed to be impacted more than males.
authors: University of Houston, Houston, Texas 77030, USA. tdao@central.uh.edu
authors: Tam K
authors: TK
authors: Dao
authors: Emily
authors: E
authors: Voelkel
authors: Sherine
authors: S
authors: Presley
authors: Brendel
authors: B
authors: Doss
authors: Cashuna
authors: C
authors: Huddleston
authors: Raja
authors: R
authors: Gopaldas
mesh_terms: D000368:Aged; D001008:Anxiety Disorders / Q000175:diagnosis / Q000453:epidemiology*; D001026:Coronary Artery Bypass / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D012424:Rural Population / Q000706:statistics & numerical data*; D012737:Sex Factors; D016896:Treatment Outcome