Yu et al reported a nomogram for predicting intestinal resection for a pediatric patient with intussusception.The authors are from Yuying Children's Hospital and Wenzhou Medical University in China.
Parameters:
(1) duration of symptoms in hours
(2) serum CRP in mg/L
(3) WBC count in 10^9/L
(4) ascites
points for duration =
= 0.625 * (duration)
points for serum CRP =
= 0.262 * (CRP)
points for WBC count =
= 1.34 * (WBC)
Parameter
Finding
Points
ascites
absent
0
present
16.8
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 229.3
value of X =
= (0.0786 * (score)) - 5.004
probability of intestinal resection =
= 1 / (1+EXP((-1) * X))
Performance:
• The area under the ROC curve is 0.87.
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