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Table 3 Change in ED visits (Relative risk and 95%CI) associated with a 1 unit increase in weekly laboratory counts: final models.

From: Evaluation of alternative respiratory syndromes for specific syndromic surveillance of influenza and respiratory syncytial virus: a time series analysis

ED syndrome outcome Covariates (lag, weeks) RR (95%CI) P-value
Bronchiolitis RSV (0) 1.031 (1.027-1.035) < 0.0001
  Influenza (-4) 1.006 (1.003-1.010) 0.001
Pneumonia RSV (+4) 1.014 (1.011-1.017) < 0.0001
  Influenza (-1) 1.010 (1.007-1.012) < 0.0001
Influenza - like RSV (+1) 0.980 (0.972-0.987) < 0.0001
  Influenza (-1) 1.047 (1.042-1.052) < 0.0001
All respiratory RSV (2) 1.004 (1.003-1.005) < 0.0001
  Influenza (-1) 1.005 (1.004-1.006) < 0.0001
  All respiratory ED visits 1 week prior 1.001 (1.001-1.001) < 0.0001
All acute respiratory infections RSV (2) 1.006 (1.005-1.007) < 0.0001
  Influenza (-1) 1.006 (1.005-1.007) < 0.0001
  All respiratory ED visits 1 week prior 1.002 (1.002-1.002) < 0.0001
  1. 1Only lags between -4 and +4 weeks were considered in this study.