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Table 2 Two-step search of the HSCRC database

From: Acute respiratory distress syndrome: estimated incidence and mortality rate in a 5 million-person population base

Initial search

Additional constraints

Second search

518.5

Post-surgical

96.70

Ventilator

518.5 + 96.71

 

or post-trauma

 

duration

 
 

ARDS; survivor

 

NOS

 
 

or non-survivor

  

518.5 + 96.72

518.82

ARDS unrelated

96.71

Ventilator

518.82 + 96.71

 

to trauma or

 

support < 4 days

 
 

surgery;

   
 

survivor or

96.72

Ventilator

518.82 + 96.72

 

non-survivor

 

support > 4 days

 
  1. NOS = not otherwise specified.
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Critical Care

ISSN: 1364-8535