Skip to main content

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.