Table 5 Specific variables to be included in the three separate models described in aim 1

 Patient Factors

X

X

X

  # Pre-index admissions

X

X

X

  Age

X

X

X

  ASA class

X

X

X

  Co-morbid conditions

X

X

X

  Do Not Resuscitate status

X

X

X

  Functional status

X

X

X

  Gender

X

X

X

  Lab values

X

X

X

  Marital status

X

X

X

  Pain score

X

X

X

  Race

X

X

X

  Smoking/Alcohol status

X

X

X

 Procedure Factors

X

X

X

  Fiscal Year

X

X

X

  Indication for surgery

X

X

X

  Operation complexity

X

X

X

  Procedure type

X

X

X

 Hospital Factors

X

X

X

  Facility (or VISN)

X

X

X

 Surgical Complications

X

X

 Hospital Acquired Infections

X

X

 Emergent/Elective

X

X

 Lab values

X

X

 Length of Stay

X

X

 Pain Score

X

X

 Procedure Characteristics

X

X

 Vital Signs at Discharge

X

X

 Care Coordination at Discharge

X

 Caregiver Accessibility

X

 Cognitive Function

X

 Depression/Mood

X

 Discharge Complexity

X

 Discharge Destination

X

 Functional Status at Discharge

X

 Healthcare Utilization

X

 Perceived Stress

X

 Post-Discharge Complications

X

 Transportation

X