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Table 2 Multivariate logistic regression models predicting bacteremia in 581 patients with febrile UTI.

From: Procalcitonin reflects bacteremia and bacterial load in urosepsis syndrome: a prospective observational study

 

Multivariate OR

(95% CI)

P-value

R2

Model 1

  

0.145

   Age >65 years

2.4 (1.5 to 3.8)

<0.001

 

   Temperature >38.6°C

2.1 (1.3 to 3.3)

0.001

 

   Altered mental status

1.8 (0.9 to 3.5)

0.093

 

   Heart rate >100/minute

1.7 (1.1 to 2.7)

0.015

 

   Diabetes mellitus

1.6 (1.0 to 2.7)

0.063

 

   Shaking chills

1.5 (1.0 to 2.3)

0.052

 

   Antibiotic UTI treatment

1.5 (0.9 to 2.3)

0.085

 

Model 2

  

0.293

   Age >65 years

1.6 (1.0 to 2.5)

0.059

 

   Temperature >38.6°C

1.7 (1.1 to 2.7)

0.019

 

   Altered mental status

2.0 (1.0 to 4.2)

0.054

 

   Diabetes mellitus

1.8 (1.0 to 3.1)

0.035

 

   PCT > 0.25 μg/l

14.7 (6.6 to 32.6)

<0.001

 

Model 3 (univariate)

  

0.252

   PCT > 0.25 μg/l

18.0 (8.2 to 39.5)

<0.001

 
  1. UTI: urinary tract infection; OR: Odds Ratio; CI: confidence interval; PCT: procalcitonin; R2: Nagelkerke's R2.
  2. Model 1 = Clinical model including all clinical variables of Table 1 with P- value < 0.2 in univariate analysis.
  3. Model 2 = Model 1 + PCT > 0.25 μg/l. Model 3 = PCT > 0.25 μg/l only.
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Critical Care

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