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Table 3 Positive predictive values in the Danish National Patient Registry with shock diagnoses, inotropic/vasopressor therapy among patients with shock, and shock from the combination of diagnoses and inotropic/vasopressor therapy

From: Positive predictive value of International Classification of Diseases, 10th revision, diagnosis codes for cardiogenic, hypovolemic, and septic shock in the Danish National Patient Registry

  Shocka No shock Total numberb Positive predictive value, % (95% CI)
Diagnosis code c     
Shock 136 22 158 86.1 (79.7–91.1)
 Cardiogenic shock 43 3 46 93.5 (82.1–98.6)
 Hypovolemic shock 24 10 34 70.6 (52.5–84.9)
 Septic shock 54 24 78 69.2 (57.7–79.2)
Procedure code c     
 Inotropes/vasopressors 67 5 72 93.1 (84.5–97.7)
Diagnosis codec+ inotropic/vasopressor codec     
 Cardiogenic shock 24 1 25 96.0 (79.6–99.9)
 Hypovolemic shock 9 4 13 69.2 (38.6–90.9)
 Septic shock 28 6 34 82.4 (65.5–93.2)
  1. aShock defined as a confirmed overall shock or subtype of shock by medical chart review.
  2. bAll missing medical charts are excluded.
  3. cDNPR codes: shock overall (R570, R571, R572, A41.9A), cardiogenic shock (R570), hypovolemic shock (R571), septic shock (R572, A41.9A), and inotropes/vasopressors (BFHC92, BFHC93 (excluding BFHC93E-BFHC93H), BFHC95.
  4. Abbreviation: CI Confidence interval.