Jiang et al reported a nomogram for predicting a recurrent complicated urinary tract infection (UTI) in a pediatric patient. The authors are from Sichuan University in China.
Patient selection: pediatric patient with a complicated urinary tract infection (UTI)
Parameters:
(1) gender
(2) urinary tract surgery
(3) positive urine culture for Escherichia coli
(4) renal dysfunction
(5) vesicoureteral reflux (VUR)
Parameter
Finding
Points
gender
male
0
female
86.2
urinary tract surgery
no
0
yes
85
E. coli positive urine culture
no
0
yes
88.3
renal dysfunction
no
0
yes
78.2
vesicoureteral reflux
no
0
yes
100
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 437.7
• The higher the score the greater the risk of recurrent infection.
• A score of 0 is associated with 37% rate of recurrence.
value of X =
= (0.0107 * (score)) - 0.5129
risk of recurrent complicated UTI =
= 1 / (1 + EXP((-1) * X))
Performance:
• The C-index is 0.74 in the training and 0.75 in the validation cohorts.
To read more or access our algorithms and calculators, please log in or register.
