Pneumonia Risk Score (PRS) of Lipsett et al for Predicting Radiographic Pneumonia in a Pediatric Patient

Patient selection: 3 months to 18 years of age

Outcome: radiographic pneumonia

Parameters:

(1) age in years

(2) triage oxygen saturation in percent, enter from 0 to 100

(3) fever at home or in the ED

(4) rales on examination

(5) wheeze on examination

where:

• The triage oxygen saturation is balanced by the relatively large constant.

value of X =

= SUM(points for all of the parameters) + 18.056

probability of radiographic pneumonia =

= 1 / (1 + EXP((-1) * X))

Performance:

• The area under the ROC curve is 0.71.