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Table 4 Validation of cognitive impairment reported by the surgeons using dementia and/or IQCODE

From: Validation of orthopaedic surgeons’ assessment of cognitive function in patients with acute hip fracture

 

Validation criteria

Dementiaa

Dementia and/or IQCODE > 3.44b

Dementia and/or IQCODE > 4.0b

Sensitivity (CI)

79.5%

62.4%

69.2%

Specificity (CI)

88.2%

89.5%

89.6%

Positive predictive value (CI)

71.5%

79.4%

78.1%

Negative predictive value (CI)

92.0%

78.5%

84.4%

  1. aDementia registered in patients` medical journal
  2. bDementia registered in patients` medical journal and/or IQCODE> 3.44 vs. > 4.0 registered in the local hospital database