Jaffray et al reported a model for predicting the risk of hospital-acquired (HA) venous thromboembolism (VTE) in a pediatric patient in the hospital. This can help to identify a patient who may require an intervention to reduce the risk. The authors are from multiple children's hospitals in the United States.
Patient selection: pediatric patient who has been hospitalized
Parameters:
(1) age of the patient on admission in years
(2) history of cancer
(3) history of congenital heart disease
(4) history of other high risk condition
(5) recent hospitalization
(6) Braden mobility score on day of admission (from Braden scale for pressure ulceration)
(7) platelet count on day of admission per microliter
(8) prior central venous catheter placed
(9) history of recent surgery
(10) steroid use on the day of admission
(11) central venous catheter and intubation status on the day of admission
|
Parameter
|
Finding
|
Points
|
|
age of the patient
|
< 1
|
1.6432598
|
|
|
1 to 10
|
0
|
|
|
10 to 22
|
0.92486769
|
|
history of cancer
|
no
|
0
|
|
|
non-heme
|
-1.267549
|
|
|
heme
|
0.48513962
|
|
congenital heart disease
|
no
|
0
|
|
|
yes
|
1.0580424
|
|
other high risk condition
|
no
|
0
|
|
|
yes
|
1.4646044
|
|
recent hospitalization
|
no
|
0
|
|
|
yes
|
0.63940857
|
|
Braden mobility
|
no limitation (4)
|
0
|
|
|
slight limitation
|
0.75894093
|
|
|
very limited
|
1.2512008
|
|
|
completely immobile
|
3.2414368
|
|
platelet count
|
< 350,000 per µL
|
0
|
|
|
>= 350,000 per µL
|
0.71219994
|
|
prior central venous catheter
|
no
|
0
|
|
|
yes
|
1.6489015
|
|
history of recent surgery
|
no
|
0
|
|
|
yes
|
1.1088679
|
|
steroid use
|
no
|
0
|
|
|
yes
|
0.47650208
|
|
central venous catheter and intubation status
|
neither
|
0
|
|
|
central venous cath only
|
3.2525026
|
|
|
intubation only
|
1.3823428
|
|
|
both
|
2.2774543
|
value of X =
= SUM(points for all of the parameters) - 8.4597499
probability =
= 1 / (1 + EXP((-1)*X))
probability of
