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Table 3 Logistic regression

From: Return of pandemic H1N1 influenza virus

Variable Odds ratio p-value
Period 2009–10 (Reference) 1  
Period 2010-12 (1.33-4.77) 2.52 0.0045
Period 2010-13 (4.53-11.5) 7.21 <.0001
Age (as continuous) 1.01 (0.99-1.04) 0.3486