Ref : Lemeshow S et al. Refining intensive care unit outcome prediction by using changing probabilities of mortality. Crit Care Med. 1988;16:470-477
Patients excluded :
Coronary care
Cardiac surgery
Burn patients
Age < 14 years
Constant ( -6.5917 ) has been subsequently substituted by (-6.5288) (personal communication from S. Lemeshow)
Number of lines :
Arterial and i.v. lines
Endotracheal or tracheostomy tube
Foley catheter
Pacing wires (counted as 1 line)
Chest tubes (counted individually)
NG tube
Drains, sumps
The abdomen is considered in quadrants with all drains / sumps in a particular quadrant counted as one "line"
"Texas" catheters are excluded