Blanken et al reported a score for predicting severity of a respiratory syncytial virus (RSV) infection in a premature infant. The authors are from multiple institutions in Europe and North America.
Patient selection: premature infant with RSV
Parameters:
(1) date of birth relative to RSV season
(2) exposure to tobacco
(3) siblings
(4) daycare
Parameter
Finding
Points
birthdate
3 months before to 2 months after RSV season
6
other
0
exposure to smoking
smoker in house
3
smoking during pregnancy
5
both
11
neither
0
sibling or daycare
sibling
14
daycare
14
both
39
neither
0
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 56
Total Score
Risk Group
Hospitalization Rate
< 20
low
1%
20 to 45
moderate
3.3%
> 45
high
9.5%
Performance:
• The area under the ROC curve is 0.77.
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