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Table 7 Cut-off value analyses for each subscale of the PSIT

From: Psychometric properties of the psychosocial screening instrument for physical trauma patients (PSIT)

 

Sensitivity

Specificity

J

PPV

NPV

Subscale 1: Negative affect

 5

0.958

0.742

0.700

0.377

0.991

 6

0.938

0.79

0.728

0.421

0.987

 7

0.896

0.834

0.730

0.467

0.980

 8

0.833

0.864

0.697

0.500

0.970

 9

0.729

0.892

0.621

0.522

0.953

 10

0.625

0.915

0.54

0.953

0.938

Subscale 2: Anxiety and PTSS

 2

0.958

0.672

0.630

0.515

0.978

 3

0.944

0.903

0.846

0.779

0.978

 4

0.817

0.954

0.771

0.866

0.935

 5

0.620

0.985

0.605

0.936

0.877

Subscale 3: Social and self-image

 2

0.929

0.712

0.641

0.218

0.991

 3

0.929

0.824

0.753

0.313

0.992

 4

0.857

0.907

0.764

0.444

0.987

 5

0.607

0.935

0.542

0.447

0.965

  1. Cut-off values with the highest J are in bold
  2. Abbreviations J Youden’s Index, PPV Positive predictive value, NPV Negative predictive value, PTSS Post-Traumatic Stress Symptoms