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Overview :
Kling et al identified factors associated with blood
transfusion in premature infants in the intensive care unit (ICU). This can
help identify infants who may benefit from erythropoietin therapy. The authors
are from the Arizona Health Sciences Center.
Infant selection: birthweight was <= 1,500 grams
Parameters:
(1) SNAP score
on day 7 (Score for Neonatal Acute Physiology)
(2) blood loss
from phlebotomy in mg per kg per day (where the average blood loss per day will
be used in the implementation)
NOTE: I am not sure how this data could be used before day 7
in the ICU. Its main use must be for likelihood of transfusion during long ICU
admissions.
X =
= (0.538 * (SNAP on day 7)) + (4.136 * (blood loss in mg per
kg per day)) - 11.459
probability of blood transfusion =
= 1 / (1 + EXP((-1) * X))
The average blood transfusion was 12 mL per kg.
All infants who received transfusions from day 0 to 7
received blood transfusions after day 7.
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