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Table 2 Mean cost (in AU$) of imaging and pathology tests performed per patient, with additional cost by complication status in AU$

From: Cost of investigations during the acute hospital stay following total hip or knee arthroplasty, by complication status

Ā 

No complications

Nā€‰=ā€‰405

Minor only

Nā€‰=ā€‰73

Major, at least one

Nā€‰=ā€‰22

Imaging

ā€ƒMean cost (SD)

88.9 (101.8)

201.7 (251.3)

337.4 (299.4)

ā€ƒAdditional costa, unadjusted (95% CI)

Reference

+ā€‰ 112.8 (76.3ā€“149.4)

+ā€‰ 248.5 (185.7ā€“311.4)

ā€ƒAdditional cost, adjustedb (95% CI)

Reference

+ā€‰ 103.7 (66.2ā€“141.1)

+ā€‰ 231.4 (167.4ā€“295.5)

Pathology

ā€ƒMean cost (SD)

97.7 (83.6)

250.3 (285.5)

329.0 (323.8)

ā€ƒAdditional costa, unadjusted (95% CI)

Reference

+ā€‰ 152.7 (115.7ā€“189.6)

+ā€‰ 231.3 (167.6ā€“295.0)

ā€ƒAdditional cost, adjustedb 95% CI)

Reference

+ā€‰ 136.3 (98.0ā€“174.5)

+ā€‰ 217.2 (151.8ā€“282.6)

  1. a Additional cost represents the cost that is added when the specified type of complication is present, compared to when it is absent
  2. b Adjusted for age, sex, procedure, ASA score, operation time (minutes), anxiety and depression, cancer (past and current), diabetes mellitus, dementia, hypertension, hyperlipidaemia, hyperthyroidism, osteoporosis, urinary incontinence, chronic urinary tract infection, and autoimmune, cardiac, chronic respiratory, cerebrovascular, central nervous system, liver, renal, gastro-oesophageal reflux disease, and past venous thromboembolism