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Table 2 Statistical analysis of continuous variables between the delirium group and the non-delirium group

From: Electrolyte disorders and aging: risk factors for delirium in patients undergoing orthopedic surgeries

  Delirium Non-delirium t a P-value
Cases 75 507
Duration of hospitalization (d) 21.25 ± 8.45 20.85 ± 8.34 0.42 0.68
Preoperative Albumin (g/L) 38.23 ± 3.34 39.99 ± 4.37 −3.38 0.00
Postoperative Albumin (g/L) 30.12 ± 4.46 31.49 ± 3.78 −1.89 0.07
Preoperative Hemoglobin (g/L) 114.98 ± 14.56 125.18 ± 18.32 −3.72 0.00
Postoperative Hemoglobin (g/L) 102.21 ± 15.34 106.98 ± 17.84 −1.60 0.14
  1. aA Student’s t-test was used to analyze these variables