Effect of hospital-acquired complications on hospital length of stay and cost for older adults after a hip fracture in New South Wales, Australia

Osteoporos IntPublished Retrospective cohort study

Main finding · Hospital LOS (after matching)Result — go to the resultRelative increase (longer) 43% 95% CI 1.41–1.46

Authors' conclusion

For older adults following a hip fracture who had hospital-acquired complications (HACs), hospital length of stay (LOS) and costs were over 40% higher compared to those without HACs.

Study context

Population
Older adults admitted after a hip fracture and discharged July 2014–June 2022, New South Wales, Australia1:1 matched analysis
Participants
41,013 adults
Exposure
Older patients with hospital-acquired complications (HACs) vs without HACs after hip fracture
  • HACsn = 14,050
Outcome
Hospital length of stay (LOS) and hospital care costs
Methodological details1:1 matched, linked hospitalisation and mortality data
  • 1:1 matched
  • Linked hospitalisation and mortality data

Main finding

Hospital LOS (after matching)

Relative increase (longer)

43%

95% CI 1.41–1.46

By group

As reported in the abstract

Observational data: associations, not effects.

Further findings

Median $

OutcomeHACsWithout HACsRelative increase (higher) (95% CI)P value
Hospital costs (after matching)Matched cohort84,779 (IQR $44,296-$131,426)60,137 (IQR $23,995-$100,300)P < 0.001
Hospital costs (after matching)Matched cohort42% (0.40–0.44)
Incidence of HACs
34.3% · 14,050
Incidence of HACs — Most common complication: healthcare-associated infections
43.1%

Original publication

Effect of hospital-acquired complications on hospital length of stay and cost for older adults after a hip fracture in New South Wales, Australia. Osteoporos Int. Published 16 June 2025. doi:10.1007/s00198-025-07536-8

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