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Table 5 Post-hoc multivariable logistic regression models that account for repeated measures assessing the association between specified predictor variables, including the variable of whether or not syndromic surveillance was a primary data source on outcomes related to the likelihood of taking a public health response to emergency department syndromic surveillance alerts by year within the study

From: Evaluation of the ability of standardized supports to improve public health response to syndromic surveillance for respiratory diseases in Canada

   Outcomes
(Odds Ratio, 95% Confidence Interval)
Any response including watchful waiting Any response excluding watchful waiting
Intervention Year 1 0.020 (<0.01, 0.18)a 0.41 (0.06, 2.78)
Year 2 0.18 (0.016, 2.12) 0.72 (0.18, 3.00)
Control   Reference Reference
Medium LPHA Year 1 0.38 (0.02, 7.33) 0.79 (0.06, 10.2)
Year 2 0.21 (0.01, 5.41) 0.52 (0.08, 3.44)
Large LPHA   Reference Reference
Small LPHA Year 1 1.12 (0.01, 12.7) 1.30 (0.14, 11.9)
Year 2 2.49 (0.16, 39.1) 0.47 (0.09, 2.43)
Large LPHA   Reference Reference
Sustained alert Year 1 1.87 (1.13,3.08)a 2.07 (1.24, 3.46)a
Year 2 0.24 (0.16, 0.35)a 0.92 (0.61, 1.39)
New alert   Reference Reference
Views syndromic surveillance as a primary data source Year 1 47.5 (4.2, 536)a 2.10 (0.26, 16.6)
Year 2 3.86 (0.28, 52.9) 0.60 (0.12, 2.88)
Secondary   Reference Reference
  1. aStatistically significant result