Table 1.
ICD-9 Codes Used To Identify Influenza-like Illness.
Table 2.
Population Characteristicsa Among US Service Members, 18–49 Years of Age, During Two Influenza Seasons (2006/2007, 2008/2009).
Table 3.
Univariable Hazard Risk Ratios for ILI Among US Service Members, 18–49 Years of Age, During 2006/2007 and 2008/2009 Influenza Seasons.
Table 4.
Risk of ILI by Vaccine Type and Health Behavior During Two Influenza Seasons (2006/2007, 2008/2009).