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Table 2 Sensitivity and specificity of the STRATIFY score and the FRAX™ score.

From: World Health Organization fracture risk assessment tool in the assessment of fractures after falls in hospital

A

Items

Events

Datasets

AUC

95% CI

   
    

lower

upper

   

STRATIFY

Falls

Development dataset

0.749

0.719

0.779

   
  

Test dataset

0.765

0.736

0.794

   
 

Fracture after falls

Development dataset

0.717

0.549

0.885

   
  

Test dataset

0.636

0.464

0.808

   

FRAX

Falls

Development dataset

0.606

0.574

0.637

   
  

Test dataset

0.589

0.557

0.620

   
 

Fracture after falls

Development dataset

0.749

0.580

0.917

   
  

Test dataset

0.727

0.552

0.901

   

B

Items

Events

Datasets

Sensitivity

95% CI

Specificity

95% CI

    

lower

upper

 

lower

upper

STRATIFY

Falls

Development dataset

0.648

0.592

0.701

0.749

0.740

0.759

  

Test dataset

0.678

0.625

0.726

0.749

0.739

0.758

 

Fracture after falls

Development dataset

0.625

0.306

0.863

0.736

0.726

0.745

  

Test dataset

0.400

0.168

0.687

0.732

0.723

0.742

FRAX

Falls

Development dataset

0.481

0.425

0.536

0.663

0.654

0.672

  

Test dataset

0.496

0.443

0.548

0.666

0.657

0.675

 

Fracture after falls

Development dataset

0.750

0.409

0.929

0.659

0.620

0.668

  

Test dataset

0.700

0.397

0.892

0.661

0.652

0.670

  1. AUC (A), sensitivity and specificity (B) of the STRATIFY score and the FRAX™ score to detect falls and fracture after falls were calculated. Cut-off values for the STRATIFY score and the FRAX™ score were set at 2 and 10, respectively.