TABLE 1

Pseudomonas aeruginosa, extended-spectrum β-lactamase-positive Enterobacteriaceae and methicillin-resistant Staphylococcus aureus (PES) score

PES scorePoints
Age years
 <400
 40–651
 >652
Male1
Previous antibiotic use in the past month2
Chronic respiratory disorder2
Chronic renal failure3
At emergency room
 Consciousness impairment or aspiration evidence2
 Fever or shivers−1

≤1 point: low-risk multidrug-resistant score; 2–4 points: medium-risk multidrug-resistant score; ≥5 points: high-risk multidrug-resistant score.