The PredAHT (Predicting Abuse Head Trauma) is a clinical prediction tool that can aid in the diagnosis of abusive head trauma.
Patient selection: age < 36 months with intracranial injury
Parameters:
(1) age in months
(2) gender
(3) skull fracture
(4) rib fractures
(5) long bone fractures
(6) retinal hemorrhages
(7) head and neck bruising
(8) apnea
(9) seizures
Parameter
Finding
Points
age
0 to 5 months
1.138
6 to 11 months
1.284
12 to 23 months
0.267
24 to 35 months
0
sex
female
male
0.149
skull fracture
no
yes
-0.749
rib fractures
3.755
long bone fractures
2.635
retinal hemorrhages
3.45
head or neck bruising
1.513
apnea
1.938
seizures
1.624
value of X =
= SUM(points for all of the parameters) - 4.002
probability of abusive head trauma =
= 1 / (1 + EXP((-1) * X))
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Specialty: Clinical Laboratory
