Hajibandeh et al report HAS Index for evaluating a patient undergoing emergency laparotomy for an acute abdomen. The authors are from University Hospital of Wales, Royal Stoke University, and Cardiff University.
Patient selection: acute abdomen
HAS stands for Hajibandeh Index, ASA Status and Sarcopenia.
Parameters:
(1) Hajibandeh Index (HI)
(2) ASA status
(3) sarcopenia
Parameter
Finding
Model A
Model B
Hajibandeh index
HI*0.001656
HI*0.002114
ASA status
1
0.9667
0.99154
2
0.9667*2
0.99154*2
3
0.9667*3
0.99154*3
4
0.9667*4
0.99154*4
5
0.9667*5
0.99154*5
sarcopenia
no
0
0
yes
4.40152
4.08003
value of X for model A =
= SUM(points for all of the parameters) - 7.358
value of X for model B =
= SUM(points for all of the parameters) - 7.157
probability of 30-day mortality =
= 1 / (1 + EXP((-1) * X))
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