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Table 2 Patient Characteristics and Outcomes of Delirium after Primary Elective THA (2009–2014)

From: Incidence and risk factors associated with postoperative delirium following primary elective total hip arthroplasty: a retrospective nationwide inpatient sample database study

Parameter No delirium Delirium P
Total (n = count) 384,943 3481  
Total incidence (%) 0.90
Age (yrs.) 65 (57–74) 77 (69–83) < 0.001
Age group (%)
  ≤ 50 11.01 2.15 < 0.001
 51–60 23.80 7.07
 61–70 31.19 18.33
  ≥ 71 34.00 72.45
 Sex (% female) 55.83 58.16 0.006
Race (%)
 White 86.12 89.52 < 0.001
 Black 7.39 5.08
 Hispanic 3.24 2.52
 Asian or Pacific Islander 0.83 0.71
 Native American 0.37 0.32
 Other 2.06 1.84
 CCIa 3 (2–4) 4 (4–5) < 0.001
 LOSb (d) 3 (2–3) 4 (3–6) < 0.001
Total charges ($) 47,936 (35,100.5-66,438) 56,984 (40,339-81,950) < 0.001
In-hospital mortality (%) 0.13 0.81 < 0.001
  1. CCIa Charlson Comorbidity Index; LOSb: length of stay