Zhou et al reported a model for predicting urinary tract infection (UTI) in a patient with neurogenic lower urinary tract dysfunction (NLUTD). This can help to identify a patient who may benefit from more aggressive management. The authors are from Southern Medical University and Shenzhen Hospital in Guangdong, China.
Patient selection: adult with neurogenic lower urinary tract dysfunction
Outcome: 6-month UTI
Parameters:
(1) age in years
(2) gender
(3) diabetes
(4) urinary calculi
(5) indwelling catheter
(6) time to start bladder behavior training in weeks
(7) hypoproteinemia
Parameter
Finding
Points
age in years
< 65 years
0
.= 65 years
0.907
gender
male
0
female
0.937
diabetes
no
0
yes
0.860
urinary calculi
no
0
yes
1.081
indwelling catheter
no
0
yes
0.685
time to bladder training
< 2 weeks
0
>= 2 weeks
0.912
hypoproteinemia
no
0
ye
0.547
calculated UTI risk prediction score =
= SUM(points for all of the parameters) - 2.570
Interpretation:
• A score >= 0.41 is associated with UTI.
• Presumably the risk can be expressed as 1/(1 + EXP((-1) * (score))
Performance:
• The area under the ROC curve is 0.832.
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