Disparities in inpatient costs and outcomes after elective anterior cervical discectomy and fusion at safety-net hospitals.

INTRODUCTION

Characterizing disparities that exist at safety-net hospitals is crucial for crafting national healthcare reform policies. Healthcare disparities in performing elective neurosurgical procedures like anterior cervical discectomy and fusion (ACDF) at safety-net hospitals have not yet been examined.

OBJECTIVE

We use the National Inpatient Sample (NIS), a national all-payer healthcare database of inpatient admissions, to determine whether safety-net hospitals can provide equitable care after elective ACDF.

METHODS

The NIS from 2002 to 2011 was queried for patients who received ACDF in the context of degenerative spine disease. Hospital safety-net burden was designated as low (LBH), medium (MBH), or high (HBH) based on the proportion of inpatient admissions that were billed as Medicaid, self-pay, or charity care. Significance was set at p < 0.001.

RESULTS

A total of 219,433 admissions were included in this analysis. HBHs were more likely than LBHs to treat patients who were Black, Hispanic, on Medicaid, or had myelopathy (p < 0.001). After adjusting for patient, hospital, and clinical factors, treatment at an HBH was associated with greater in-patient inflation-adjusted log cost (p < 0.001), but not with greater length of stay (LOS) (p = 0.04) or odds of an inpatient adverse event like death, incidental durotomy, surgical site infections, deep vein thromboses and others (OR 95 % CI = 0.86-1.42, p = 0.43) compared to LBHs.

DISCUSSION

Safety net hospitals had greater inpatient costs, but no greater LOS or odds of inpatient adverse events after elective ACDF. These results demonstrate a need for policies that reduce the cost of performing ACDFs at SNHs.