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. 2020 Dec 17;15(12):e0243342. doi: 10.1371/journal.pone.0243342

Table 3. Pre-test diagnostic probability of COVID-19 infection: PARIS score.

Variables Points
Eosinophils < 0.06 G/L 1
Lymphocytes < 1.3 G/L 2
Neutrophils <5G/L 1
Basophils <0.04G/L 1
Score = 0–1 → Low probability
Score = 2–3 →Intermediate probability
Score ≥4 → High probability