Importance
With recent health policy focus on shifting risk to providers, hospital leaders are increasing efforts to reduce excessive resource use, such as patients with extended length of stay (LOS) after surgery. However, it is unclear the degree to which extended LOS represents complications, patient illness, or inefficient practice style.
Objective
We sought to examine the influence of complications on hospital extended LOS rate variation after colorectal resections.
Design
Retrospective cohort study.
Setting
Hospitals participating in the 2009 American College of Surgeons National Surgical Quality Improvement Project (199 hospitals)
Participants
Adults undergoing inpatient colorectal resections (N=22,664 patients)
Exposures
Inpatient complications recorded in the ACS-NSQIP dataset. Inpatient complications were identified by their postoperative date of occurrence’s relationship to the patient’s surgical discharge date.
Main outcome measures
Risk-adjusted hospital extended LOS rates, defined as the proportion of patients with hospital stay greater than 75th percentile for the entire cohort.
Results
Forty-three percent of patients with extended LOS did not have a documented inpatient complication. While there was wide variation in both risk-adjusted extended LOS (15%–35%) and risk-adjusted inpatient complication (12%–29%) rates, there was only weak correlation (Spearman’s rho 0.56) between the two. Only half (52%) of the variation in hospital extended LOS rates was attributable to hospital inpatient complication rates.
Conclusions and Relevance
Much of the variation in hospital risk-adjusted extended LOS rates is not attributable to patient illness or complications and therefore most likely represents differences in practice style. Efforts to reduce excess resource utilization should focus on the efficiency of care, such as increased adoption of enhanced recovery pathways.