Volume Matters: Returning Home After Hip Fracture

Area of Science:

• Gerontology
• Health Services Research
• Orthopedics

Background:

• Hip fractures are a significant health concern for elderly individuals, often requiring post-acute care in skilled nursing facilities (SNFs).
• The transition from hospital to SNF and back to the community is a critical period for patient recovery and functional outcomes.
• Variability in SNF performance suggests that facility characteristics may influence patient discharge success.

Purpose of the Study:

• To investigate the impact of skilled nursing facility (SNF) volume of hip fracture admissions on patient outcomes.
• To determine if facility characteristics, particularly admission volume, influence successful discharge to the community after hip fracture treatment.

Main Methods:

• Prospective observational study involving 15,439 U.S. skilled nursing facilities (SNFs).
• Analysis of Medicare administrative data for 512,967 community-dwelling Medicare beneficiaries aged 75+ undergoing post-acute care for hip fracture (2000-2007).
• Utilized propensity score matching and instrumental variables to assess successful discharge, defined as return to community within 30 days and remaining there for another 30 days.

Main Results:

• Overall successful discharge rate to the community was 31%, with significant variation among facilities (interquartile range 0%-42%).
• Higher SNF volume of hip fracture admissions was strongly associated with better outcomes: 43.7% successful discharge in high-volume facilities versus 18.8% in low-volume facilities.
• This volume effect remained significant after adjusting for patient and facility characteristics (adjusted odds ratio = 2.06 for high vs. low volume).

Conclusions:

• Skilled nursing facility (SNF) provider volume is a critical determinant of successful discharge to the community for hip fracture patients.
• Substantial variation in patient outcomes exists across SNFs, highlighting the importance of provider experience and specialization.
• These findings underscore the need to consider facility volume and staffing when managing post-acute care for hip fracture patients to optimize community reintegration.