Table 5

Patients who developed a pressure ulcer while in hospital, compared with patients with a type 2 pressure ulcer coded in the DAD

Pressure ulcer developed while in hospital
YesNoTotal
Any type 2 ICD-10 pressure ulcer code
 Yes8816
 No19317921985
Total20118002001
  • Sn=0.04; Sp=1.00; PPV=0.50; NPV=0.90; κ=0.06 (95% CI 0.01 to 0.10).

  • DAD, Discharge Abstract Database; ICD-10, International Classification for Diseases and Related Health Problems, 10th Revision; NPV, negative predictive value; PPV, positive predictive value; Sn, sensitivity; Sp, specificity.