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Table 2 Numbers of ILI cases observed at hospital and expected in the community according to level of exposure to infectious patients or HCWs observed at hospital.

From: A multiplicative hazard regression model to assess the risk of disease transmission at hospital during community epidemics

Exposure Number of observed ILI cases at hospital Number of ILI cases expected in the community Hazard ratio of ILI (95% CI) p value
No infectious patient or HCW documented 12 16.01 1.00 -
At least 1 infectious HCW but no infectious patient 1 0.30 4.44 (0.58-34.18) 0.15
At least 1 infectious patient but no infectious HCW 7 1.26 7.42 (2.92-28.84) < 0.01
At least 1 infectious HCW and 1 infectious patient 4 0.50 10.63 (3.43-32.95) < 0.01