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Table 2 Correlations between suspected COVID-19 hospital admissions/SOIs and confirmed COVID-19 admissions between March 1, 2020 and September 21, 2020

From: Development and assessment of a hospital admissions-based syndromic surveillance system for COVID-19 in Ontario, Canada: ACES Pandemic Tracker

Syndrome Spearman’s rho P value
Suspected COVID-19 admissions (including SOI) 0.617 <.0001
Suspected COVID-19 admissions (excluding SOI) 0.867 <.0001
General infection 0.311 <.0001
Influenza-like illness −0.357 <.0001
Pneumonia 0.239 .0005
  1. Spearman’s rho values ≥0.5 are considered to be highly correlated; 0.25 to 0.5 are considered to be moderately correlated and < 0.25 are considered to be weakly correlated