He et al reported a nomogram for predicting severe pneumonia in a pediatric patient with adenoviral pneumonia. This can help to identify a patient who may require more aggressive management. The authors are from Hunan Normal University in Changsha, China.
Patient selection: pediatric patient with adenoviral pneumonia
Parameters:
(1) gender of the patient
(2) serum LDH in IU/L
(3) pulmonary emphysema
(4) lung consolidation score in lung CT images, from 0 to 9
(5) lobular inflammation score in lung CT, from 0 to 16
points for serum LDH =
= 0.02857 * (LDH)
points for consolidation score =
= 4.733 * (score)
points for lobular inflammation score =
= 1.4587 * (score)
|
Parameter
|
Finding
|
Points
|
|
gender of the patient
|
male
|
0
|
|
|
female
|
17.1
|
|
pulmonary emphysema
|
no
|
0
|
|
|
yes
|
23.5
|
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 206.7
value of X =
= (0.08934 * (score)) - 5.115
risk of severe pneumonia=
= 1 / (1 + EXP((-1) * X))
Performance:
• The area under the ROC curve is 0.91 in the training and 0.85 in the validation cohorts.
